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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 .
In Figure 1, accelerated weathering data is presented. Generally, 2,000 hours corresponds to 1 year in Florida and 1,400 hours to 1 year in Southern Canada. Often terms like “UV-8” are used. UV-8 means the material can withstand 8,000 hours in a Xenon Ci-65 weatherometer. UV-2 or UV-4 would mean 2,000 or 4,000 hours respectively.
The DC50 was released at the end of 2012, and is an update on the DC24. It is a very small and lightweight upright ball cleaner incorporating the technologies introduced on the DC41 (i.e. self-adjusting brushroll), plus the addition of a new brushroll motor mounted inside the brushroll to save on space.
However, numerous professional and scientific publications have indicated that the overall effectiveness of UVGI actually increases when used in conjunction with fans and HVAC ventilation, which facilitate whole-room circulation that exposes more air to the UV source. [103] [104] Air purification UVGI systems can be free-standing units with ...
Dust bunnies beware: This whisper-quiet floor cleaner easily glides under sofas and runs for up to two hours. It's just $100 and will arrive by Christmas. This fan-favorite robovac is currently 50 ...
The NFC wild-card game between the Los Angeles Rams and Minnesota Vikings is being moved to Arizona, the NFL announced Thursday. The game remains scheduled for Monday at 5 p.m. PT, but will now be ...
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