A snorkeling breathing apparatus includes a mask, a first breathing tube assembly and a one-way exhaust valve. The mask includes an outer mask and a breathing mask arranged in the outer mask, the mask is equipped with a breathing chamber. The breathing tube assembly includes a first breathing tube and a one-way inhaling valve. The breathing tube is connected to the breathing mask through the inhaling valve. The exhaust valve is connected and mounted on the outer mask and the breathing mask. While inhaling, the inhaling valve conducts and air enters the chamber through the breathing tube. While exhaling, the exhaust valve conducts and air flows from the chamber to outside.

A snorkeling breathing apparatus includes a mask, a first breathing tube assembly and a one-way exhaust valve. The mask includes an outer mask and a breathing mask arranged in the outer mask, the mask is equipped with a breathing chamber. The breathing tube assembly includes a first breathing tube and a one-way inhaling valve. The breathing tube is connected to the breathing mask through the inhaling valve. The exhaust valve is connected and mounted on the outer mask and the breathing mask. While inhaling, the inhaling valve conducts and air enters the chamber through the breathing tube. While exhaling, the exhaust valve conducts and air flows from the chamber to outside.

A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user of the respirator while wearing the respirator to control movement of the valve member.

A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user of the respirator while wearing the respirator to control movement of the valve member.

A reusable transparent flexible silicone mask has a border coated with hydrogel or non-toxic emulsion adhesive that adheres directly to a wearer's face by hydrogel emulsion adhesion, without ear elastics or ties around the back of the head. The mask protects against breathing pathogens. The mask has a half-face version that covers the wearer's nose and mouth, a goggles version, and a full-face version. The mask may include one or more of a removable air filter cartridge, a breathing valve, a headlamp, a glasses gate, and a headband for keeping the mask on the wearer's body even when the mask is not affixed to the face.

A reusable transparent flexible silicone mask has a border coated with hydrogel or non-toxic emulsion adhesive that adheres directly to a wearer's face by hydrogel emulsion adhesion, without ear elastics or ties around the back of the head. The mask protects against breathing pathogens. The mask has a half-face version that covers the wearer's nose and mouth, a goggles version, and a full-face version. The mask may include one or more of a removable air filter cartridge, a breathing valve, a headlamp, a glasses gate, and a headband for keeping the mask on the wearer's body even when the mask is not affixed to the face.

A breathing mask having an elongated body having inhalation and exhalation compartments, each of which having openings and valve members over the openings and filters, and a hood assembly having a hood cover, made of a fabric to cover the top, nape and sides of a wearer's head, a transparent face shield connected to the hood cover, which has an upper portion of sight and a lower portion for breathing; the breathing mask is inserted into a hole inside the face shield and secured to it by means of a seal.

A breathing mask having an elongated body having inhalation and exhalation compartments, each of which having openings and valve members over the openings and filters, and a hood assembly having a hood cover, made of a fabric to cover the top, nape and sides of a wearer's head, a transparent face shield connected to the hood cover, which has an upper portion of sight and a lower portion for breathing; the breathing mask is inserted into a hole inside the face shield and secured to it by means of a seal.

The Dual Clappet Mask is to protect people from inhaling harmful air around them. They inhale and exhale by the same mouth nipple connected to a dual clappet, and the two clappets are open/close automatically to fulfill the respiring.

Unlike filtering the inside air, the Dual Clappet Mask uses outside clean air via a soft tube, and in this way it would protect people very well from a small toxic, dusty and anoxic environment.

The Dual Clappet Mask is to protect people from inhaling harmful air around them. They inhale and exhale by the same mouth nipple connected to a dual clappet, and the two clappets are open/close automatically to fulfill the respiring.

Unlike filtering the inside air, the Dual Clappet Mask uses outside clean air via a soft tube, and in this way it would protect people very well from a small toxic, dusty and anoxic environment.