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Air purifiers can indeed neutralize some of the risks posed by indoor air pollution — but not all purifiers are equally as effective, and many don't live up to their marketing hype.
Risks from the Covid-19 pandemic and increasingly intense wildfire seasons sparked interest in air purifiers as a tool to keep indoor air healthy. But experts say they can be just as important to ...
Living plants oxygenate the air, reduce CO2 levels and naturally purify the air, so they’re a great way to affect air quality for relatively low cost. Aloe vera, fern and peace lily are all good ...
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 .
Low humidity may occur in hot, dry desert climates, or indoors in artificially heated spaces. In winter, especially when cold outside air is heated indoors, the humidity may drop to as low as 10–20%. A relative humidity of 30% to 50% is recommended for most homes. [1]
So changing the temperature of air can change the relative humidity, even when the absolute humidity remains constant. Chilling air increases the relative humidity, and can cause the water vapour to condense (if the relative humidity rises over 100%, the dew point). Likewise, warming air decreases the relative humidity. Warming some air ...
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