Abstract: A diving mask includes a transparent visor, a frame, a gasket to guarantee the watertight seal and appropriate belts for fitting the mask, a breathing tube associated with the facial part is fitted onto the upper part of the mask and which enables the flow of air to enter into the compartment between the frame and the visor. The path of air in the inhalation phase and in the exhalation phase both in the mask and tube are different from each other. The tube is made with separate ducts for inhalation and exhalation and the inside of the mask is made with two compartments, one upper front and one lower oronasal separated by a wall. The path provides that inhalation air is introduced by the tube into the frontal compartment and then into the oronasal one and air exhaled from the oronasal compartment travels up to the tube.

Abstract: This disclosure describes a full-face type mask for underwater use. The mask is provided with a mouthpiece to enable the wearer to breathe with his/her head under the surface of the water. The mask is also provided with a communication device.

Abstract: A full face mask equipped with an inlet air filter includes a transparent visor, a frame or strap, preferably a rubber gasket designed to guarantee water tightness and appropriate straps to fit the mask on the face. The mask has a fitting which engages on the upper part of the mask in an inspiration mouth and which allows the flow of air to enter the space created between the frame and the viewer. This fitting includes a coupling portion to this mouth and on the opposite side a seat for the attachment of a filtering system of the air entering the mask.

Abstract: A greenhouse for underwater cultivation of terrestrial plant species comprising a dome (2) suitable for being filled with air in an underwater environment, provided with an aperture (21) for lower access and made of a material that is impermeable to water and permeable to light, such dome comprising means for restraining to the sea floor, and means for adjusting the level of water/air in the dome itself which must ensure that plant species cultivated in the greenhouse always reside above such level. Inside such dome a system for the automatic irrigation of the cultivated plants is present comprising a tubular structure (3) on which a plurality of mutually spaced holes (31) is provided, inside which supports are placed for housing and cultivating plant species, irrigation water flowing inside such tubular structure and irrigating such supports in order to achieve a hydroponic culture.

Abstract: A greenhouse for underwater cultivation of terrestrial plant species comprising a dome (2) suitable for being filled with air in an underwater environment, provided with an aperture (21) for lower access and made of a material that is impermeable to water and permeable to light, such dome comprising means for restraining to the sea floor, and means for adjusting the level of water/air in the dome itself which must ensure that plant species cultivated in the greenhouse always reside above such level. Inside such dome a system for the automatic irrigation of the cultivated plants is present comprising a tubular structure (3) on which a plurality of mutually spaced holes (31) is provided, inside which supports are placed for housing and cultivating plant species, irrigation water flowing inside such tubular structure and irrigating such supports in order to achieve a hydroponic culture.

Abstract: This disclosure describes a full-face type mask for underwater use. The mask is provided with a mouthpiece to enable the wearer to breathe with his/her head under the surface of the water. The mask is also provided with a communication device.

Abstract: A support for earphone unit for a scuba diver mask (18) comprises a U-shaped base (20) with a rod (21) extending from it, associable to an earphone unit (12), to be arranged close to the scuba diver's ear, wherein the U-shaped base (20) in each of its two legs (23) can be attached to a carrying band (14) of the mask (11) by freely removable coupling means (24, 25) and a free end of the rod (21) is arranged into a seat (30) of the earphone unit (12).

Abstract: A support for earphone unit for a scuba diver mask (18) comprises a U-shaped base (20) with a rod (21) extending from it, associable to an earphone unit (12), to be arranged close to the scuba diver's ear, wherein the U-shaped base (20) in each of its two legs (23) can be attached to a carrying band (14) of the mask (11) by freely removable coupling means (24, 25) and a free end of the rod (21) is arranged into a seat (30) of the earphone unit (12).