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2. Corsi–Rosenthal Box - Wikipedia

   en.wikipedia.org/wiki/Corsi–Rosenthal_Box

   Based on the cost of their design, this output amounted to $0.08 per CADR, or roughly ten times cheaper than commercial air purifiers, with quieter operation. [ 3 ] A study of a home-built air purifier to remove wildfire smoke, using a box fan and filter mounted in a window, showed that particulate matter between 1 and 10 μm in size was ...

3. Air purifier - Wikipedia

   en.wikipedia.org/wiki/Air_purifier

   An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .

4. Gallon - Wikipedia

   en.wikipedia.org/wiki/Gallon

   A US liquid gallon contains 3.785411784 kilograms (8.3454 lb) of water at 3.98 °C (39.16 °F), and is 83.26742% of an imperial gallon. There are four quarts in a gallon, two pints in a quart and 16 US fluid ounces in a US pint, making the US fluid ounce ⁠ 1 / 128 ⁠ of a US gallon.

5. GPS Air - Wikipedia

   en.wikipedia.org/wiki/GPS_Air

   Among others, one of the room mounted air purifiers made by GPS Air includes the GPS-FC24-AC that can be wall mounted in multiple small cassettes or to existing HVAC equipment. [18] An additional device sold by the company is a "plasma generator" aimed at reducing the amount of microorganisms, including mold and allergens, in the air to prevent ...

6. Air filter - Wikipedia

   en.wikipedia.org/wiki/Air_filter

   This U-turn takes the air at high velocity across the surface of the oil pool. Larger and heavier dust and dirt particles in the air cannot make the turn due to their inertia, so they fall into the oil and settle to the bottom of the base bowl. Lighter and smaller particles stick to the filtration media in the insert, which is wetted by oil ...

7. Bushel - Wikipedia

   en.wikipedia.org/wiki/Bushel

   ≈ 8.25645 US dry gallons ≈ 9.6076 US liquid gallons ≈ 2219.35546 cubic inches: ≈ 1.28435 cubic feet 1 US bushel [6] = 8 US dry gallons ≡ 4 US pecks ≡ 2150.42 cubic inches ≡ 1 ⁠ 21121 / 86400 ⁠ cubic feet ≡ 35.23907016688 litres ≡ 9 ⁠ 3571 / 11550 ⁠ US liquid gallons ≈ 7.75151 imperial gallons

8. United States customary units - Wikipedia

   en.wikipedia.org/wiki/United_States_customary_units

   The common 55-gallon size of drum for storing and transporting various products and wastes is sometimes confused with a barrel, though it is not a standard measure. In the U.S., single servings of beverages are usually measured in fluid ounces. Milk is usually sold in half-pints (8 fluid ounces), pints, quarts, half gallons, and gallons.

9. Air ioniser - Wikipedia

   en.wikipedia.org/wiki/Air_ioniser

   Air ioniser and purifier with its dust collection plates removed. Air ionisers are used in air purifiers to remove particles from air. [3] Airborne particles become charged as they attract charged ions from the ioniser by electrostatic attraction. The particles in turn are then attracted to any nearby earthed (grounded) conductors, either ...