Abstract: A maintenance-free respirator 10 that includes a mask harness and a mask body 11. The mask body 11 has at least one layer of filter media 56 and has a perimeter 32 that includes an upper segment 34. The upper segment 34 includes first and second concave segments 36, 38 that are located, respectively, on first and second sides of a central plane 40, when viewing the mask body from a top view. A maintenance-free respirator 10 of this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.

Abstract: A combined goggle and face mask includes a goggle body, a strap, a shield, and two retaining members. Either side of the goggle body is recessed with a receiving portion. The goggle body is provided with a lens. Either end of the strap is provided with a bracket to be coupled to the receiving portion. The bracket is supported by the receiving portion. The shield is coupled to the google body. The retaining member is coupled to the bracket. Because the bracket is received in the receiving portion, the bracket can be supported by the receiving portion, so as to offset the pulling force. First edges that are oblique edges and second edges each in the form of a curved corner of the bracket are supported by two oblique sides and two bent sides each in the form of a curved corner of the receiving portion.

Abstract: Systems and methods for a face shield for attachment to goggles or eyeglasses are disclosed. An attachment portion secures a shield to said googles or eyeglasses. The attachment portion includes an outer band secured to and extending along an upper portion of the shield. An inner band extends along an upper portion of the goggles or eyeglasses. At least one clip removably secures the attachment portion to the goggles or eyeglasses.

Abstract: A face mask device utilizing a flexible sheet of material having three termini. One of the termini includes an aperture that serves as an anchor place in combination with spectacles worn by the user. The two remaining termini are used to tie the mask about the head of the user.

Abstract: An assembled full-face mask includes a goggle, an outer lens, and a mask shell. The outer lens includes a sheet and a pivotal frame that is connected to the sheet. The pivotal frame is assembled to the goggle, and the outer lens is rotatable relative to the goggle along a first axis. The mask shell includes two connection rods assembled to the goggle and a shell body that is connected to the two connection rods. The mask shell is rotatable relative to the goggle along a second axis that is parallel to and spaced apart from the first axis. When one of the outer lens and the mask shell is rotated relative to the goggle by a first angle, another one of the outer lens and the mask shell is rotatable relative to the goggle by a second angle that is less than the first angle.

Abstract: A head and eye protection apparatus for use in conjunction with a helmet that envelops a wearer's head, the helmet having a front opening that enables the wearer to see. The helmet has upper and side edges that surround the front opening. A goggle provides a transparent viewing lens supported by a peripheral frame. The frame includes an upper frame section, left and right side frame sections and a lower frame section. The goggle frame is suspended via a dual suspension system wherein a first apparatus seats the goggle frame to the helmet, and a second apparatus seats the goggle frame to the user's face.

Abstract: There is disclosed a full-face mask to be worn in combination with a protective helmet having a suspension harness. The mask comprises a receiving channel interfacing with the suspension harness to secure the connection between them while preventing the safety helmet to physically interfere with or hinder wearing the mask. Thus, the combination of protective headgears may be worn with improved comfort and decreased risks of breaking the seal provided by the full-face mask.

Abstract: Disclosed herein are glasses having an air purification function. The glasses include: a pair of glass frames inside which airflow paths are formed, and in which a plurality of air vents is formed in the sides of the glass frames facing the nose and mouth of a user; a bridge inside which an airflow path is formed, and in which a plurality of air vents is formed in the side of the bridge facing the nose of the user; a pair of temples inside which airflow paths are formed, and in which at least one air intake is formed in the rear side of a corresponding one of the temples; at least one high-efficiency particulate air (HEPA) filter; at least one blower fan; at least one drive motor; at least one switch; at least one charging connector; at least one speaker; and at least one anion generation unit.

Abstract: A head and eye protection apparatus for use in conjunction with a helmet that envelops a wearer's head, the helmet having a front opening that enables the wearer to see. The helmet has upper and side edges that surround the front opening. A goggle provides a transparent viewing lens supported by a peripheral frame. The frame includes an upper frame section, left and right side frame sections and a lower frame section. The goggle frame is suspended via a dual suspension system wherein a first apparatus seats the goggle frame to the helmet, and a second apparatus seats the goggle frame to the user's face.

Abstract: Disclosed are goggles. The goggles are provided so that they comprise: a main body unit worn on the face of a user; a lens unit that is coupled to the main body unit and has a fastening protrusion formed to protrude toward the main body unit; and a fastening unit that has a fastening recess formed therein and is coupled to the main body to lock and unlock the fastening protrusion, wherein the fastening unit includes a body part movably coupled to the main body unit and a guide protrusion for guiding the moving direction of the body part, the main body unit has a guide hole formed at a position corresponding to the guide protrusion, the guide protrusion being received in the guide hole, and the fastening unit further included a protrusion part coupled to the body part to push the fastening protrusion outward such that the lens unit is separated from the main body unit when the fastening protrusion is unlocked according to the movement of the body part into the main body unit.

Abstract: Provided are mask removable type automatic shading goggles in that a welding helmet is manufactured in a goggle shape, so that the mask removable type automatic shading goggles can replace the existing heavy and large welding surface; the mask removable type automatic shading goggles can also be used for both an arc welding work and a grinding work, a cutting work, and a gas welding work; and if necessary, the mask part can be easily attachably and detachably coupled to the goggle part.

Abstract: A lens assembly provides an interchangeably removable frame and lens for a face mask for use in adjusting to a variety of different conditions that a user may encounter. The lens assembly beneficially provides a user with an option to interchangeably attach and detach a different lens to a face mask for a plurality of different conditions, including, but not limited to, a variety of weather conditions, a variety of eyesight accommodations, or a preferred design aesthetic. The lens assembly also beneficially provides for an easier and more efficient removal and replacement of the lens from the face mask, without a user having to remove the mask from the user's face.

Abstract: A support frame for releasably attaching a facemask to a goggle including at least one vent and its method of use are disclosed. In one non-limiting embodiment, the support frame includes a nose bridge and two legs extending from the nose bridge. The nose bridge and the two legs are adapted and arranged to releasably attach the facemask to a bottom surface of the goggles. The nose bridge and two legs are arranged such that the at least one vent is unobstructed when the facemask is attached to the goggles by the support frame.

Abstract: A goggle mask is provided. The goggle mask includes at least one check valve device with a soft body and at least one valve disk. The soft body is integrally connected with the soft nose masking portion of the goggle mask. The soft body has a draining hole. The valve disk is adapted to movably cover the draining hole. With this arrangement, there are no hard objects that come into contact with the user's face, so the user may feel less uncomfortable. A check valve device and a method for manufacturing a check valve device of a goggle mask are also provided.

Abstract: A method of making a protective shield is provided. The method comprises molding an arcuate lens blank having an optical center displaced from an apex of the lens to a position near or beyond the edge of the protective shield. This reduces the object shift as wearer of the lens shifts gaze from a normal straight ahead line of sight to an activity specific line of sight that is vertically displaced from the normal straight ahead line of sight.

Abstract: A protective face mask system according to the present invention comprises a flexible mask body including an opening for receiving a lens, nose portion, a central portion positioned to the rear of and extending at least partially above the nose portion, a central receiving slot located between the nose portion and the central portion, right and left temple portions, each temple portion having a shaped receiving opening therethrough, left and right cheek portions, and at least one groove located adjacent one of the left and right cheek portions. A lens is provided sized to be received upon and cover the lens opening. The lens includes right and left temple portions including openings therein positioned to correspond to and align with the openings of the mask body when the lens is positioned for attachment to the mask body. The lens including at least a portion that snappingly engages the groove when a portion of the lens is inserted into the slot.

Abstract: A protective face mask with a mask body and a removable lens. A lens retaining assembly connects the lens to the mask body. Typically, the lens retaining assembly includes a retaining plug and a locking strap to selectively capture the lens. The locking strap flexes between a locked and open position.

Abstract: A rotational engagement component to engage a lens for facial protection, to headwear such as a helmet worn on the head of a user. The device features one or a plurality of mounts engageable to the helmet. A pivot engaged with the mount and with the lens, allow rotation of the lens from an as-used position in front of the user, to a horizontal stowed position. The pivot is translatable in its engagement to the mount allowing for translation of the lens in the stowed position to adjust its center of gravity on the user's head.

Abstract: Facial coverings and eyewear systems are provided herein for improving the ease and comfort of wearing facemasks with a goggle. In some embodiments, a facemask frame is provided that can removably attach to a facemask or face covering to a goggle. In some embodiments, a separate facemask, such as a cloth covering, can be provided. In some embodiments, a facemask can be interconnected with the facemask frame to secure the facemask relative to the goggle during use for covering a portion of the wearer's face.

Abstract: A mask for aquatic activities, the mask comprising a relatively rigid frame carrying at least one transparent lens, and a flexible skirt joined with a perimeter of the frame. The mask also includes a strap for holding the mask against a user's head and buckles for adjusting the length of the strap. The buckles are joined with lateral sides of the frame by brackets extending from the lateral sides. The brackets are made of a selected flexible material.

Abstract: A method for fabricating a frameless diving includes the following steps. First, providing a lens; next, coating an adhesive on an edge of the lens; then, forming a first flexible layer made of a silica gel on the edge of the lens; thereafter, forming a second flexible layer made of another silica gel on the first flexible layer. The first flexible layer has a plurality of protrusions and may enables the lens covered with the first flexible layer to be spaced apart from a high-temperature mold for a proper distance, so as to prevent the first flexible layer from falling off from the lens due to the high temperature when molding the silica gel. The protrusions are exposed out of the second flexible layer, so as to vary the design and shape of the frameless diving mask abundantly.

Abstract: An apparatus for releasably locking a protective eye lens to the housing of a protective face cover is disclosed. The apparatus is configured to have an inner and outer lock. The inner lock couples the protective eye lens to the housing. The inner lock can release the protective eye lens from the housing through the use of a release unit. An activator on the release unit is guarded by the outer lock to prevent inadvertent movement of the activator and consequent unintended release of the protective eye lens from the housing.

Abstract: A protective face mask system according to the present invention comprises a flexible mask body including an opening for receiving a lens, nose portion, a central portion positioned to the rear of and extending at least partially above the nose portion, a central receiving slot located between the nose portion and the central portion, right and left temple portions, each temple portion having a shaped receiving opening therethrough, left and right cheek portions, and at least one groove located adjacent one of the left and right cheek portions. A lens is provided sized to be received upon and cover the lens opening. The lens includes right and left temple portions including openings therein positioned to correspond to and align with the openings of the mask body when the lens is positioned for attachment to the mask body. The lens including at least a portion that snappingly engages the groove when a portion of the lens is inserted into the slot.

Abstract: A goggle mask is provided. The goggle mask includes at least one check valve device with a soft body and at least one valve disk. The soft body is integrally connected with the soft nose masking portion of the goggle mask. The soft body has a draining hole. The valve disk is adapted to movably cover the draining hole. With this arrangement, there are no hard objects that come into contact with the user's face, so the user may feel less uncomfortable. A check valve device and a method for manufacturing a check valve device of a goggle mask are also provided.

Abstract: The invention relates to an eye protection mask for the practice of outdoor sports, the mask including an eye protection lens, a peripheral frame to which the lens is fixed, the frame demarcating an opening closed by the lens, the frame having an orifice opening out at the rear of the shield and to the outside, a lateral deflector fixed to the frame opposite the orifice so as to channel a flow of air coming from the front of the mask to form an air flow tangentially to the orifice, such that the airflow formed creates a depression by venturi effect in the area of the outer inlet of the orifice.

Abstract: A protective face mask system according to the present invention comprises a flexible mask body including an opening for receiving a lens, nose portion, a central portion positioned to the rear of and extending at least partially above the nose portion, a central receiving slot located between the nose portion and the central portion, right and left temple portions, each temple portion having a shaped receiving opening therethrough, left and right cheek portions, and at least one groove located adjacent one of the left and right cheek portions. A lens is provided sized to be received upon and cover the lens opening. The lens includes right and left temple portions including openings therein positioned to correspond to and align with the openings of the mask body when the lens is positioned for attachment to the mask body. The lens including at least a portion that snappingly engages the groove when a portion of the lens is inserted into the slot.

Abstract: A lens assembly for securing in an opening in a face plate of a face protector has a first, retainer lens of shape and dimensions configured to be secured in the front opening of a face plate and having a curvature substantially matching the curvature of the face plate. A second lens of smaller dimensions is secured behind the first lens to provide a lens-in-a-lens configuration. The lens assembly may be releasably secured in the face plate opening and the second lens is interchangeable with sets of lenses having different properties such as lens shade. The retainer assembly has a back cover and a gasket or spacer between the back cover and second lens to allow second lenses of different depths to be secured in the assembly.

Abstract: Disclosed is a protective mask of the kind having particular application for covering the eyes, ears, nose and chin of one playing the game of paintball. The protective mask has a lens that can be quickly and easily removed for replacement as a consequence of paint splatter or cracking such as that caused by the impact thereagainst of a paintball traveling at high speed. The protective mask also has a detachable head strap that is coupled to the lens through the mask. More particularly, a hole formed through an ear covering section of the mask is axially aligned with a hole formed through an ear covering section of the removable lens. One end of the detachable head strap is tied to a first connector. The first connector includes an upstanding locking catch that is moved into the axially aligned holes formed through the mask and the lens.

Abstract: A goggle is provided that can comprise a goggle frame and a bend control component. The goggle frame can define opposing lateral portions and a central portion. The goggle frame can comprise a bridge disposed at the central portion of the goggle frame. The goggle frame can be generally flexible upon exertion of a bending force on the goggle frame. The bend control component can extend along the bridge of the goggle frame. The bend control component can be configured to enhance flexural strength of the goggle at a bridge thereof for reducing preferential bending of the goggle frame at the bridge. In some embodiments, the bend control component is formed separately from the goggle frame. In other embodiments, the bend control component can be secured to the frame using fasteners and/or one or more protrusions and corresponding recesses.

Abstract: There is disclosed a protective head gear comprising a helmet having a brim positioned above the eyes of the wearer, a face protector covering at least a portion of the face of the wearer, and an adapter comprising an elongate cross member for securing the face protector to the helmet along the brim. There is also disclosed an adapter for attaching a face protector having a pair of strap receiving slots moulded therein to a helmet, comprising a cross member secured to the helmet, and a pair of support arms for insertion into the strap receiving slots. Additionally, there is disclosed face protective gear for use with a helmet having a brim positioned above the eyes of the wearer, comprising a cross member comprising a lip moulded along an upper edge, and a pair of goggles depending from the cross member When the cross member is secured to the helmet, the lip overlaps the brim.

Abstract: A mask includes a body having a through hole with which a goggle is engaged. Two first holes are defined in the body and located on two ends of the through hole. The goggle includes two side parts which are located on inside of the through holes. Two positioning plates each have a first positioning hole and a second positioning hole which communicates with the first positioning hole. Two locking members each have a protrusion which extends through the first hole, the side part and the first positioning hole, the positioning plates are then pulled to shift the protrusions to be engaged with the second positioning holes.

Abstract: A lightweight face shield which protects the face of the wearer from debris and/or hazardous materials, such as biological materials, and is particularly well suited for medical and dental applications. The face shield utilizes a two-piece tiered structure with a preferably canted retention frame joined through an inclined structure member to a shield frame member below which is retained a transparent shield, and above which a minishield. The shield frame member is retained forward of the retention frame member so as to retain the peripheral portions of the shield separated from the face of the user, providing improved ventilation and reduced fogging of the transparent shield. A trampoline style support arm is described that provides solid retention, compliant comfort, and reduced material requirements. Optional locking hinge assemblies for the support arms and a nose bridge are also described.

Abstract: A closed face motorcycle helmet includes a shell with an eyeport and a shield attached for hinged motion between a closed position covering and sealing the eyeport and an open position displaced above the eyeport. A hinge plate is attached to the shell on each side and includes a socket into which a hub of the shield is rotatably disposed for hinged movement of the shield. A lever assembly having a downwardly extending lever and a hub with two dowels is attached to the bottom of the hinge plate. The lever assembly is manually movable between a central home position, a forwardly rotated shield cracking position, and a rearwardly rotated shield restraining position. A motion plate is attached to a lower edge of the shield and covers the hub and dowels of the lever assembly when the shield is closed. Surfaces on the inside of the motion plate interact with the dowels of the lever assembly to provide multiple precision shield control functions.

Abstract: The present invention provides full-face polycarbonate goggles for use with an open-face helmet for comprehensive face and head protection for motorcycle riders. The goggles are optically transmissive so that, not only can the wearer see out, but also an onlooker can identify the wearer's facial features.

Abstract: A helmet includes a windscreen with a housing for holding a windscreen wiper device being positioned in a chin portion of the helmet. A motive power fitting is provided for a windscreen wiper head and a windscreen wiper rod. The motive power fitting is fixed inside a casing. The windscreen wiper rod coordinates with a fixing axle with one side of the windscreen wiper rod being connected to the conveying portion of the motive power and the other side of the windscreen wiper rod being connected to the windscreen wiper head. The windscreen wiper device on the windscreen wiper head is tightly fixed on the protection windscreen on the protection helmet. The windscreen wiper device includes a power supply with the output being connected to the motive power device. The helmet may be used by a driver on a rainy or foggy day for increasing safety during such weather.

Abstract: In the case of an integral helmet with a helmet shell (1) which protects the head, with a visor opening (2) and with a chin part (4) which defines the lower side of the visor opening (2) and is provided with a plurality of functional elements and at least partially with a decorative surface, simpler handling and savings on weight can be achieved in that the chin part (4) is formed with a supporting part (8) which carries the functional elements, and in that the decorative surface is formed by at least one surface part (9) which is connected to the supporting part (8).

Abstract: The present invention relates to a protective mask adapted to be worn by a person engaging in the game of paintball. The mask has a main body to cover the front, sides, mouth and ears of a user's face. It also has a removable flexible transparent lens that locks into a rigid support frame formed in the mask. The mask also has a strap to securely support the mask on a wearer's head, and a removable face engaging element provided to accommodate a face of the wearer. This face engagement element evenly engages around the wearer's face in a cushioned manner because its face engagement portion is made of foam that engages the user's face along the entire perimeter of the face engagement element. The face engagement element is securely locked onto the mask by locking clips that fit into openings on both sides of the face engagement element.

Abstract: A wireless remote control is provided for an auto-darkening lens (ADL) system used in a welding helmet, respirator system or other device to control or to adjust settings of an ADL of a controllable light shutter. A display system facilitates providing information indicating the operative settings and/or conditions of the controllable light shutter. A wired remote control for controlling or adjusting an ADL also uses a display system with indicators to indicate the operative settings and/or conditions of the ADL. The display may include a number of indicators, an alpha-numeric display, a heads-up display or other display. The display may include discrete indicators in the peripheral field of view of one eye of a user a controllable. The invention also includes methods of using a remote control for an ADL and of making an ADL to provide for future use of a wireless remote control.

Abstract: A dive mask having a pair of replaceable lenses comprises a soft, flexible skirt for bearing against the diver's face, an inner lens frame having a pair of openings for receiving the lenses and a peripheral member integrally molded into the skirt for permanent retention therein and a removable outer lens frame having a pair of lens openings and a peripheral member shaped to bear against the lenses adjacent the skirt. A sealing gasket is preferable molded into the inner lens frame along the lens openings to prevent water leakage into the face side of the lenses.

Abstract: A method of using a face protector includes providing a face protector including a lens and a face plate configured to protect the forehead, eyes, cheeks, jaw, chin, mouth, ears, and nose of a user without protecting substantially the remainder of the user's head; applying the face protector to the user's head; wearing the face protector during an activity; and removing the face protector after the activity.

Abstract: Closed air space devices and methods of use for full body bio hazard type suits that eliminates condensation and fogging from forming on the face masks and the window visors of the suit. The devices and methods have a sealed closed air space that can be formed from flexible see-through plastic in a cone shape that can be sealed between the mask and the visor. The closed air space can be pre-sealed to the visor/outer wall of the suit and have a second end fitted with an elastic type band that allows the wearer to attach and detach the closed space by wrapping the band about their face mask. Other embodiments use flat see-through plastic sheets, and sheets that attach about the neck of the user to form the closed air spaces between the face mask and the window visor of the suit.

Abstract: A pair of swimming goggles includes left and right frames made of hard material, a head strap and a connection frame connecting the left and right frames and made of soft material. Supporters respectively extend from the inner ends of the peripheral surfaces of the frames opposite to the fastener base. A fill zone is defined in each of the inner surfaces of the frames opposite the supporters. A head strap is connected to the fastener base of each of the left and right frames. The connection frame includes a nose bridge and left and right pads connecting with opposite ends of the nose bridge. Receiving recesses are respectively defined in the junctions between the nose bridge and the pads for respectively receiving the supporters therein. Junction portions are respectively formed at the left and right pads corresponding to the fill zone of each of the left and right frames for being filled in the fill zone.

Abstract: An indicator system and method for an auto-darkening lens or other device that is intended to be placed relatively close to the face of a wearer includes one or more indicators adjacent the lens and generally provides the indicators in the peripheral field of view of the wearer, allowing the indicators to be discerned without having to focus eye vision on them and while allowing the wearer to direct eye focus on a work piece or the like.

Abstract: Swimming goggles have a left frame, a right frame and a connecting frame connecting the left frame and the right frame. The left frame and the right frame are made of hard material. Enveloping frames are respectively formed adjacent to the inner surfaces and slightly offset relative to outer rims of the peripheral surfaces. Fastener base are respectively formed on outward sides of the enveloping frames for movably receiving head strap. The connecting frame is made of soft material, and includes a nose bridge, a left pad and a right pad respectively on left and right sides of the nose bridge. Thus head strap easily move through the fastener base made of hard material, while the left pad and the right pad touch a user softly. The nose bridge supports the support portions of the left frame and the right frame reliably, so the swimming goggles are used comfortably and avoiding distortion of the left frame and the right frame.

Abstract: An eye-wear article (93) for use with a respiratory mask (1) comprises a flat piece of transparent polymeric material providing a visor portion. The flat piece of polymeric material has shaped portions in a lower edge that fit over respective selected parts of the mask, and elongate tabs (95) that extend from each side and are inserted into respective guides (97) on the head harness (7, 8) of the mask to cause the flat piece of polymeric material to adopt a curved configuration and locate the visor portion in front of the eyes of the wearer. The tabs (95) can slide in the guides (97) to permit the eye-wear article to be moved out of engagement with the mask and onto the top of the wearer's while the mask is being worn, without disturbing the position of the mask on the wearer's face and without affecting the respiratory protection provided by the mask.

Abstract: Periscope Swim Goggles are swimmer's goggles with a periscope situated above the water line that projects the view that is ahead of the swimmer through a fiber optic cable to a viewer located on the goggle's eyepiece. Generally, an open-water swimmer using the free style or crawl stroke must occasionally sight on a landmark to swim toward. Periscope Swim Goggles would enable the swimmer to continually swim directly along the desired path without lifting the head for sighting. Conventional swimming goggles are typically comprised of two eyepieces contoured and gasketed for an air-tight fit around each eye socket and an elastic strap that wraps around the head holding the eyepieces tight to the face. In one embodiment of the invention, the periscope is positioned and secured at the back of the head by the elastic strap of the goggles. The fiber optic cable leaves the periscope and follows the elastic strap to the viewer which is mounted to the front of the eyepiece.

Abstract: In a face mask for use in the practice of paint-ball games or other such activities requiring effective shielding of the face, a large unitary lens is applied to an aperture extending from the brow to the chin and from one temple to the other. The lens is secured by a pair of releasable clips that can be quickly manipulated for cleaning or replacement of the lens in a matter of seconds. A semi-conical breath deflector extends behind the lens from the nose bridge to the base of the lens channeling the breath away from the lens and towards ventilating slits in the base of the mask. The slant of the deflector avoids any obstruction of the field of vision such as created by the lens frame of conventional goggles and face masks.

Abstract: A combination wrap-around mask and goggle is made from a single transparent and flexible plastic material monolithically formed in a single cavity mold. The structure is devoid of any cavities or protrusions that could interfere with the easy withdrawal of the device from the mold. Front to back oriented ribs, gussets and fins are used to impart rigidity to various areas of the structure.

Abstract: A face shield for headgear comprises a generally transparent main lens, adapted for engagement to the headgear. The main lens comprises a curved inner and outer main lens surfaces and has a central recessed portion with a curved recessed inner lens surface and a curved recessed outer lens surface. The recessed inner lens surface and the recessed outer lens surface are respectively offset from the curved inner and outer main lens surfaces. The recessed portion is adapted to receive a secondary lens such that a sealed air gap is formed between the secondary lens and the main lens, thereby forming a sealed double pane lens having condensation reduction properties.

Abstract: With reference to FIG. (2), a helmet (2) for an aircraft crew member (1) is provided with a device (10) for forming an eye-shielding curtain (11) of air in front of the crew members eyes. The air exhausts to the ambient atmosphere (9) by way of an escape path (12) beneath the lower edge of the visor (4), as indicated by arrow (13).