Abstract: In one aspect, a protective headwear is provided and includes a headgear, an outer shell, a duct and a manifold. The headgear is configured to engage a wearer's head and at least partially support the protective headwear on a wearer's head. The headgear includes a front, a rear opposite the front, a right side, and a left side opposite the right side. The outer shell is coupled to the headgear at a coupling location and includes a shield positioned to the front of the headgear. The duct is at least partially coupled to and at least partially positioned in an interior of the outer shell. The duct is located below the coupling location.

Abstract: In one aspect, a protective headwear is provided and includes a headgear, an outer shell, a duct and a manifold. The headgear is configured to engage a wearer's head and at least partially support the protective headwear on a wearer's head. The headgear includes a front, a rear opposite the front, a right side, and a left side opposite the right side. The outer shell is coupled to the headgear at a coupling location and includes a shield positioned to the front of the headgear. The duct is at least partially coupled to and at least partially positioned in an interior of the outer shell. The duct is located below the coupling location.

Abstract: Disclosed example respirators comprise: a filter configured to filter the air; a blower fan configured to provide continuous air flow at variable speeds; an air duct configured to direct air from the blower fan to an exhaust location, the blower fan configured to blow air through the air duct; and a blower controller configured to: control the blower fan to automatically adjust an airflow speed of the blower fan to a plurality of airflow speeds over a plurality of different time periods, the plurality of airflow speeds being within an airflow speed range.

Abstract: Provided is a powered air blower unit for delivering air flow to a user with constant air flow or varying speeds of air flow. The air blower unit may also include a filter for purifying the air.

Abstract: In one aspect, a protective headwear is provided and includes an outer shell, a first shell duct coupled to the outer shell and including a first exhaust port, and a second shell duct coupled to the outer shell and spaced apart from the first shell duct. The second shell duct includes a second exhaust port. The protective headwear also includes a manifold positioned externally of the outer shell and configured to divert airflow into at least a first portion of airflow and a second portion of airflow. The manifold includes a first diversion member coupled to and in fluid communication with the first shell duct to provide the first portion of airflow to the first shell duct, and a second diversion member coupled to and in fluid communication with the second shell duct to provide the second portion of airflow to the second shell duct.

Abstract: In one aspect, a protective headwear is provided and includes a headgear, an outer shell rotatably coupled to the headgear, and a first shield coupled to the outer shell and rotatable between a first position and a second position. The first shield is selectively removable from the outer shell without the use of tools. The protective headwear also includes a second shield coupled to the outer shell. The first shield covers the second shield to a greater extent in the first position than in the second position. In one aspect, a method of manufacturing a protective headwear is provided.

Abstract: In one aspect, a protective headwear is provided and includes a support member configured to engage a user's head, an outer shell coupled to the support member and rotatable relative to the support member between a first position and a second position, and a member coupled between the support member and the outer shell to reduce angular velocity of the outer shell as it moves from the first position to the second position. In one aspect, the protective headwear is a welding helmet.

Abstract: In one aspect, a headgear for engaging and supporting protective headwear on a wearer's head includes a first side member positioned on a first side of the headgear, a second side member positioned on a second side of the headgear opposite the first side, a forehead strap coupled to the first and second side members and positioned on a front half of the headgear, and an occipital strap having an end coupled to one of the first side member and the second side member on the front half of the headgear and the occipital strap extending to a rear half of the headgear.

Abstract: Provided is a powered air blower unit for delivering air flow to a user with constant air flow or varying speeds of air flow. The air blower unit may also include a filter for purifying the air.

Abstract: Provided is a powered air blower unit for delivering air flow to a user with constant air flow or varying speeds of air flow. The air blower unit may also include a filter for purifying the air.

Abstract: In one aspect, a headgear for engaging and supporting protective headwear on a wearer's head is provided. The headgear may include a first side member on a first side of the headgear, a second side member on a second side of the headgear, and a forehead strap pivotally coupled to and extending between the first and second side members. The forehead strap may be configured to engage a wearer's forehead with the headgear worn by a wearer. The headgear may also include a second strap coupled to and extending between the first and second side members.

Abstract: In one aspect, a headgear for engaging and supporting protective headwear on a wearer's head is provided. The headgear may include a first side member on a first side of the headgear, a second side member on a second side of the headgear, and a forehead strap pivotally coupled to and extending between the first and second side members. The forehead strap may be configured to engage a wearer's forehead with the headgear worn by a wearer. The headgear may also include a second strap coupled to and extending between the first and second side members.

Abstract: In one aspect, a protective headwear is provided and includes a headgear, an outer shell, a duct and a manifold. The headgear is configured to engage a wearer's head and at least partially support the protective headwear on a wearer's head. The headgear includes a front, a rear opposite the front, a right side, and a left side opposite the right side. The outer shell is coupled to the headgear at a coupling location and includes a shield positioned to the front of the headgear. The duct is at least partially coupled to and at least partially positioned in an interior of the outer shell. The duct is located below the coupling location.

Abstract: In one aspect, a split forehead strap of headgear is provided. In one aspect, a headgear for engaging and supporting protective headwear on a wearer's head is provided. The headgear includes a first side member on a first side of the headgear, a second side member on a second side of the headgear, and a forehead strap coupled to and extending between the first and second side members. The forehead strap is configured to engage a wearer's forehead with the headgear worn by a wearer. The forehead strap includes an upper member and a lower member spaced-apart from the upper member along at least a portion of the lower member to provide a cavity between the upper and lower member. In one aspect, a protective headwear is provided and includes a forehead strap defining a longitudinally extending cavity that alters in thickness.

Abstract: Head worn devices having a variable shade component and a fixed shade component, and methods of operation, are disclosed. An example head worn device includes an auto-darkening lens configured to adjust a shade value within a first shade value range, a second lens having a fixed shade value greater than 0, the auto-darkening lens and the second lens overlapping in a field of view of the head worn device to result in a net shade value range in the field of view that is greater than the first shade value range, and a clear lens on an exterior of the auto-darkening lens and the second lens.

Abstract: In one aspect, a headgear for engaging and supporting protective headwear on a wearer's head is provided. The headgear includes a first side member positioned on a first side of the headgear, a second side member positioned on a second side of the headgear opposite the first side, a forehead strap coupled to the first and second side members and positioned on a front half of the headgear, and an occipital strap having an end coupled to one of the first side member and the second side member on the front half of the headgear and the occipital strap extending to a rear half of the headgear.

Abstract: In one aspect, a protective headwear is provided and includes an outer shell, a first shell duct coupled to the outer shell and including a first exhaust port, and a second shell duct coupled to the outer shell and spaced apart from the first shell duct. The second shell duct includes a second exhaust port. The protective headwear also includes a manifold positioned externally of the outer shell and configured to divert airflow into at least a first portion of airflow and a second portion of airflow. The manifold includes a first diversion member coupled to and in fluid communication with the first shell duct to provide the first portion of airflow to the first shell duct, and a second diversion member coupled to and in fluid communication with the second shell duct to provide the second portion of airflow to the second shell duct.

Abstract: In one aspect, a headgear for engaging and supporting protective headwear on a wearer's head is provided. The headgear includes a first side member positioned on a first side of the headgear, a second side member positioned on a second side of the headgear opposite the first side, a forehead strap coupled to the first and second side members and positioned on a front half of the headgear, and an occipital strap having an end coupled to one of the first side member and the second side member on the front half of the headgear and the occipital strap extending to a rear half of the headgear.

Abstract: In one aspect, a headgear for engaging and supporting protective headwear is provided. The headgear includes a first side member positioned on a first side of the headgear, a second side member positioned on a second side of the headgear, a forehead strap extending between the first and second side members and positioned on a front half of the headgear, and an occipital strap having a first end, a second end and a body between the first and second ends. The first end is pivotally coupled to one of the first side member and the second side member on the front half of the headgear and the body extends rearward and downward from the first end toward the second end to a position on a rear half of the headgear. A tightening member is coupled to the occipital strap near the second end on the rear half of the headgear.

Abstract: In one aspect, a protective headwear is provided and includes an outer shell, a first shell duct coupled to the outer shell and including a first exhaust port, and a second shell duct coupled to the outer shell and spaced apart from the first shell duct. The second shell duct includes a second exhaust port. The protective headwear also includes a manifold positioned externally of the outer shell and configured to divert airflow into at least a first potion of airflow and a second portion of airflow. The manifold includes a first diversion member coupled to and in fluid communication with the first shell duct to provide the first portion of airflow to the first shell duct, and a second diversion member coupled to and in fluid communication with the second shell duct to provide the second portion of airflow to the second shell duct.