To combat hay fever or pet allergies, your air purifier should be equipped with a High Efficiency Particulate Absorbing (HEPA) filter. "These filters can remove up to 99.97% of small airborne ...
One rule is to put it as close to the source of pollution as possible, like, say, the kitchen, if you have cooking odors. Another rule is to put it as close to you as possible, so by your desk when ...