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 ...

Running your furnace, central air, or heat pump probably constitutes a big part of your utility bill. But it’s a small, often inexpensive part—the air filter—that keeps these heating and cooling ...

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 ...

Products like the Grayl filtration cup and ÖKO Odyssey six-in-one bottle make treating water quite simple and intuitive. The Oasis water treatment system looks to add even more ease and versatility by ...

Q: 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 work ...

Anybody interested in building their own robot, sending spacecraft to the moon, or launching inter-continental ballistic missiles should have at least some basic filter options in their toolkit, ...

A large majority of EMI problems, including both emissions and immunity, involve interference currents conducted into and out of the box via a power or data cable. These currents can be controlled by ...