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Dosages for a 90% kill rate of most bacteria and viruses range between 2,000 and 8,000 μJ/cm 2. Larger parasites such as Cryptosporidium require a lower dose for inactivation. As a result, US EPA has accepted UV disinfection as a method for drinking water plants to obtain Cryptosporidium , Giardia or virus inactivation credits.
“Indoor air can be more polluted than outdoor air, depending on where you live, what kind of materials your home was made from, how you cook your food, how you clean, etc.,” says Sarah ...
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 .
One of tallest (nearly 24 inches) and heaviest (17.5 pounds) air purifiers tested, the Winix 5500-2 Air Purifier is ideal for small-to-medium rooms (up to 360 square feet), with a True HEPA filter ...
The outbreak was detected in children between 2006 and 2011, and in adults in the spring of 2011; the mortality rate in children was 58 percent, while among adults, 53 percent died or required lung transplants. [1]
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