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2. Mechanical filter (respirator) - Wikipedia

   en.wikipedia.org/wiki/Mechanical_filter_(respirator)

   According to 3M, respirators made according to the following standards are equivalent to US N95 or European FFP2 respirators "for filtering non-oil-based particles such as those resulting from wildfires, PM 2.5 air pollution, volcanic eruptions, or bioaerosols (e.g. viruses)": [33] Chinese KN95 (GB2626-2006): similar to US.

3. Supplied-air respirator - Wikipedia

   en.wikipedia.org/wiki/Supplied-air_respirator

   Air-purifying respirators have APFs in the range 5–50 while SARs are in the range 25–2000, and full-facepiece pressure-demand SARs with an auxiliary pressure-demand SCBA have an APF of 10,000. For substances hazardous to the eyes, a respirator equipped with a full facepiece, helmet, or hood is recommended.

4. Respirator - Wikipedia

   en.wikipedia.org/wiki/Respirator

   Air-purifying respirators range from relatively inexpensive, single-use, disposable face masks, known as filtering facepiece respirators, reusable models with replaceable cartridges called elastomeric respirators, to powered air-purifying respirators (PAPR), which use a pump or fan to constantly move air through a filter and supply purified air ...

5. Breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/Breathing_apparatus

   An air-purifying respirator is a breathing apparatus which uses a filter, cartridge, or canister, to remove specific air contaminants by passing ambient air through the air-purifying component. No distinction is made based on the mechanism of passing the air through the purifying component – it may be the lungs of the user or a mechanical device.

6. The best Walmart Holiday Deals under $100: AirPods, Bissell ...

   www.aol.com/lifestyle/these-walmart-deals-are...

   There's a lot on sale during Walmart's Holiday Deals event, but some of the best deals are under $100. ... Its Helix dirt separation system helps keep filters fresh and new for longer, and five ...

7. Walmart is having a major sale on Dyson vacuums - AOL

   www.aol.com/lifestyle/theres-a-major-dyson...

   Normally, costing anywhere from $400 to almost $1,000, Walmart's got them on sale now for a fraction of the price. Dyson vacuums on sale at Walmart. ... Renpho HEPA Air Purifier. $65 $200 Save ...

8. Walmart's early Black Friday deals are rivaling Amazon ... - AOL

   www.aol.com/lifestyle/walmarts-black-friday...

   Walmart is launching its early Black Friday savings event on Monday, November 11 at 5pm EST and in-store on Friday, Nov. 15 at 6am local time. Quick Overview Ninja 4-Quart Air Fryer

9. Self-contained breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/Self-contained_breathing...

   Some types are also referred to as a compressed air breathing apparatus (CABA) or simply breathing apparatus (BA). Unofficial names include air pack, air tank, oxygen cylinder or simply pack, terms used mostly in firefighting. If designed for use under water, it is also known as a scuba set (self-contained underwater breathing apparatus).