Charcoal filters can’t be cleaned; instead, they must be changed. To do so, locate the vent panel on the back, bottom, door, ...

Discover whether you need to replace your microwave filter and learn how to maintain it for optimal performance.

Once you have learned the mechanics of low-pass filter design, high-pass design becomes a snap. You can use all of the attenuation response curves presented, thus far, for the low-pass filters by ...