To make it, you need a box fan and five minimum efficiency reporting value (MERV)13 air filters to capture smoke. (The higher the MERV value, the more filtration it provides.) ...

Additionally, Blue Signature’s laser sensor can detect particulates of 1-, 2.5-, and 10 microns in diameter. It, however, ...

Another small study involving 2 rooms found that the clean air delivery rate (CADR) of the Corsi-Rosenthal box was significantly better than that of the HEPA filter it was compared to. That means ...

See It Advanced HEPA+ filters inside this modern-looking monolith pull all kinds of harmful particulates from the air, including dust and other annoying allergens. Dyson’s unique fan oscillates ...

The fan draws up air from underneath and blows it upward through the filter and out into the room. Whenever the HEPA filter gets dirty, just take it out and wash it.

Most air conditioners come with some specific instructions for how and how often to clean your filter, but generally speaking, once or twice a month is good practice.Most modern units (including ...