A personal protected-air system includes a ring adapted to fit over a user's head. The ring includes a port for receiving breathable air, a manifold in fluid communication with the port, and vents in fluid communication with the manifold. The vents are distributed about a portion of the ring. A face mask is coupled to the ring. The face mask has a first edge, a second edge, and mask material extending from the first edge to the second edge. The first edge is coupled to the ring adjacent to the portion thereof where the vents are so-distributed. The second edge is adapted to fit snugly against the user's cheeks and nose bridge wherein the mask material is spaced apart from the user's nostrils and mouth by an air space and wherein the breathable air enters the air space via the vents

An apparatus that stores air for underwater use in an emergency. The device includes an air and water impermeable reservoir having reinforcing ribs each with a hole to allow air flow within the reservoir. The reservoir is filled with air through a mouthpiece via an air pump. The mouthpiece is fluidly connected to the reservoir with an air transfer channel to allow a user to take several breaths of air when underwater.

An apparatus that stores air for underwater use in an emergency. The device includes an air and water impermeable reservoir having reinforcing ribs each with a hole to allow air flow within the reservoir. The reservoir is filled with air through a mouthpiece via an air pump. The mouthpiece is fluidly connected to the reservoir with an air transfer channel to allow a user to take several breaths of air when underwater.

A respiratory system composes an oxygen supply, a vented respiratory mask, a hose coupled to the oxygen supply, and a connector apparatus joining the respiratory mask and the hose. The connector apparatus may comprise mask connector member to govern fluid flow through a vent in a mask, a mask valve received in a mask fluid flow passage movable between a rest position in which the mask fluid flow passage is blocked and an actuated position in which the mask fluid flow passage is unblocked, a biasing member biasing the mask valve towards the rest position, and a hose connector member to be secured to a fluid hose. The hose connector member includes a valve actuator to move the mask valve to the actuated position when the hose connector member is coupled to the mask connector member.

A positive-pressure protective wear has a protective body and an air supply. The protective body has a clothing and a headgear connected with the clothing. The air supply is connected with the protective body and inputs gas into the protective body to keep the protective body under positive pressure, and this can provide an effect of ventilation.

A positive-pressure protective wear has a protective body and an air supply. The protective body has a clothing and a headgear connected with the clothing. The air supply is connected with the protective body and inputs gas into the protective body to keep the protective body under positive pressure, and this can provide an effect of ventilation.

A personal protective positive pressure device includes a mask with an inlet connector and a tube with a first connector and a second connector. The tube is connected through the first connector to the inlet connector of the mask and the tube is connected through the second connector to an air nozzle of a ventilation system onboard a transportation vehicle. The personal protective positive pressure device is configured to limit inhalation of airborne pathogens while traveling on the transportation vehicle and to inspire confidence in the safe use of public transportation.

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.

A mask apparatus includes a mask body including an air duct and a fan module mounting portion disposed at a suction-side of the air duct, a fan module disposed at the fan module mounting portion, and a mask body cover that is coupled to the front surface of the mask body and covers the fan module and the air duct. The mask body cover defines an air suction hole configured to communicate air with a fan inlet, and the fan module has a first end inserted into the air duct and a second end coupled to the mask body. The fan module mounting portion includes a fan module coupling portion that protrudes from the front surface of the mask body and that couples the second end of the fan module to the mask body.

A mask apparatus includes a mask body including an air duct and a fan module mounting portion disposed at a suction-side of the air duct, a fan module disposed at the fan module mounting portion, and a mask body cover that is coupled to the front surface of the mask body and covers the fan module and the air duct. The mask body cover defines an air suction hole configured to communicate air with a fan inlet, and the fan module has a first end inserted into the air duct and a second end coupled to the mask body. The fan module mounting portion includes a fan module coupling portion that protrudes from the front surface of the mask body and that couples the second end of the fan module to the mask body.