Air filters, pl. noun: Devices that remove air contaminants by using a mesh of filters to trap particles in the air flow that moves through them.
Air purifiers, pl. noun: Electronic installations placed into HVAC systems that use ionization, UV radiation, oxidation, or other methods to eliminate pollutants without using filtration. Syn: air scrubbers, air cleaners.
Now that we’ve put up those two definitions, the next question is, “Okay, which one is the best for improving my home’s indoor air quality?”