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2. Positive airway pressure - Wikipedia

   en.wikipedia.org/wiki/Positive_airway_pressure

   A typical CPAP machine houses the air pump in a case lined with sound-absorbing material for quieter operation. A hose carries the pressurized air to a face mask or nasal pillow. The Sullivan V Plus, a typical mid-1990s CPAP (the mask is more modern). A typical full face CPAP mask. CPAP therapy breaks the cycle of OSA

3. Protect Your Noggin On the Trail With These Mountain Bike Helmets

   www.aol.com/best-mountain-bike-helmets-buy...

   Best Entry-Level Helmet: Giro Radix MIPS. Best Value: Fox Racing Speedframe MIPS. Best Protection for Enduro Shredding: Sweet Protection Bushwhacker 2VI MIPS. Best Full-Face Helmet: Smith Mainline ...

4. Continuous positive airway pressure - Wikipedia

   en.wikipedia.org/wiki/Continuous_positive_airway...

   A full face mask over the mouth and nose is another approach for people who breathe out of their mouths when they sleep. [13] Often, oral masks and naso-oral masks are used when nasal congestion or obstruction is an issue. [medical citation needed] There are also devices that combine nasal pressure with mandibular advancement devices (MAD).

5. Non-invasive ventilation - Wikipedia

   en.wikipedia.org/wiki/Non-invasive_ventilation

   Non-invasive ventilation (NIV) is the use of breathing support administered through a face mask, nasal mask, or a helmet. Air, usually with added oxygen, is given through the mask under positive pressure; generally the amount of pressure is alternated depending on whether someone is breathing in or out. It is termed "non-invasive" because it is ...

6. Bicycle helmet - Wikipedia

   en.wikipedia.org/wiki/Bicycle_helmet

   Bicycle helmet. Three styles of bicycle helmets: standard, full-face, and multi-sport. A typical bicycle helmet. A bicycle helmet is a type of helmet designed to attenuate impacts to the head of a cyclist in collisions while minimizing side effects such as interference with peripheral vision. [1]

7. Powered air-purifying respirator - Wikipedia

   en.wikipedia.org/wiki/Powered_air-purifying...

   A powered air-purifying respirator (PAPR) is a type of respirator used to safeguard workers against contaminated air. PAPRs consist of a headgear-and-fan assembly that takes ambient air contaminated with one or more type of pollutant or pathogen, actively removes (filters) a sufficient proportion of these hazards, and then delivers the clean ...