High efficiency particulate air (HEPA) filters and ultra-low particulate air (ULPA) filters are air filters designed to trap a vast majority of very small particulate contaminants from an air stream.

These are independent reviews of the products mentioned, but TIME receives a commission when purchases are made through ...

Commissions do not affect our editors' opinions or evaluations. Reverse Osmosis (RO) water filtration is highly regarded as the most convenient and effective method on the market for purifying ...

I checked the filter and found it caked with dust, so I replaced it with a new filter, and the indoor air is much fresher now. Are there any guidelines for how often a furnace filter should be ...

In the process, we’ve been faced with something called a MERV filter. MERV ... The recipient of degrees in International Relations and Library & Information Science from Syracuse University ...

Learn More › There is no underestimating the importance of a great backpacking water filter. Out in the backcountry, a clogged filter could mean the difference between a bout of Giardia and getting to ...

Not only will a good filter remove impurities, it'll also improve the taste and clarity of water. And compared with buying bottled water, using a water filter pitcher is substantially more ...

Commissions do not affect our editors' opinions or evaluations. Whole house water filters help keep sediments, harsh chemicals and smells out of your home. What a filter prevents from entering ...

Packing for an international trip can be a bit daunting — but I find that as long as you’ve got a plan and enough time to prepare, it’s actually pretty easy to ensure you have everything you ...

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Flash flooding across Spain killed more than 150 people after torrential rain left towns and villages submerged and turned streets into rivers. By The New York Times A Times investigation has ...