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2. Simple face mask - Wikipedia

   en.wikipedia.org/wiki/Simple_face_mask

   The simple face mask can deliver higher flow rates than nasal cannula (6–10 liters per minute) for an FiO2 of 30- 60% oxygen. [1] Nasal cannula and simple face masks are described as low flow delivery systems. [2] [3] Unlike the non-rebreather and partial rebreather masks, the simple face mask lacks a reservoir bag.

3. Escape breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/Escape_breathing_apparatus

   Polish Au-2 escape respirator. Escape breathing apparatus, also called escape respirators, escape sets, self-rescuer masks, emergency life saving apparatus (ELSA), emergency escape breathing devices (EEBD), and Respiratory Protective Smoke Escape Devices (RPED), [1] [2] are portable breathing apparatus that provide the wearer with respiratory protection for a limited period, intended for ...

4. Breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/Breathing_apparatus

   Full-face diving masks may use either rinsing or free-flow, depending on whether they are intended primarily for scuba or surface-supply. Full-face masks and helmets may also direct the flow of fresh dry gas over the inside surface of the viewport before it is inhaled, and prevent warm, moist exhaled gas from reaching the faceplate by using an ...

5. Disposable masks can take up to 450 years to decompose ... - AOL

   www.aol.com/lifestyle/disposable-masks-450-years...

   "It's really tricky because we need masks to protect ourselves," Stéphanie Regni, founder of Fillgood, a zero-waste and plastic-free refill store, in Berkeley, Calif., tells Yahoo Life. "But ...

6. Respirator - Wikipedia

   en.wikipedia.org/wiki/Respirator

   The fitting characteristic of a respirator is the ability of the mask to separate a worker's respiratory system from ambient air. This is achieved by tightly pressing the mask flush against the face (without gaps) to ensure an efficient seal on the mask perimeter.

7. EL/W-2085 - Wikipedia

   en.wikipedia.org/wiki/EL/W-2085

   The EL/W-2085 is an airborne early warning and control (AEW&C) multi-band radar system developed by Israel Aerospace Industries (IAI) and Elta Electronics Industries of Israel. Its primary objective is to provide intelligence to maintain air superiority and conduct surveillance. The system is currently in-service with Israel, Italy, and Singapore.