Dust, pollen, smoke removal is how well a model cleared air of fine clay dust and cigarette smoke when operating at its highest speed. A model that scores well for dust removal should perform ...

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan ...

If you’ve been thinking about buying a water filter pitcher to reduce the contaminants in your drinking water, there’s a good chance you’ve heard of Brita and Pur. As the two most recognizable names ...

Current Range of Tested Furnace Filters, Air Conditioner Filters & Air Filters Current Range of Tested Furnace Filters, Air Conditioner Filters & Air Filters The Ace Basic Pleated #4044624 is part of ...

Dear Ed: I read an article of yours that talked about adding a filter system to the kitchen sink. In my master bathroom, I often think about filtering my bathroom sink water. What types of filters can ...

In the last edition of Don’t Fear the Filter, we built up two examples of the simplest and most-used active filter of all time: the two-pole Sallen-Key lowpass. This time, we’re going to put two of ...