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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.
The challenged HEPA claims appeared on PuroAir 400 packaging, Amazon storefronts, and PuroAir webpages. The National Advertising Division (NAD) has noted in previous cases that, in the U.S., HEPA is generally defined as a filter’s ability to capture 99.97% of airborne particles that are 0.3 microns in size.
The Superior Air Parts XP-400 is an aircraft engine, designed and produced by Superior Air Parts of Coppell, Texas, United States for use in homebuilt aircraft. [1]The company is owned by the Chinese company Superior Aviation Beijing, which is 60% owned by Chairman Cheng Shenzong and 40% owned by Beijing E-Town, an economic development agency of the municipal government of Beijing.
G500 at EBACE 2018 Gulfstream GVII-G500 interior. The G500 was taxiing under its own power at its unveiling on October 14, 2014, [13] and it first flew on May 18, 2015. [1] The model was initially planned to be certified in 2017.
The Air Tractor AT-400 is a family of agricultural aircraft that first flew in the United States in September 1979. Type certification was awarded to Air Tractor in April 1980 . Of low-wing monoplane taildragger configuration, they carry a chemical hopper between the engine firewall and the cockpit .
Trump, Musk focus on Mars missions. For years, NASA has been planning a series of moon missions that include sending American astronauts back to the lunar surface as early as 2027 before heading ...
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