Regular vs. Electrostatic Air Filters: How Effective Are They?
2020-3-18 · Electrostatic air filters have a MERV rating between one and four. These capture less than 20% of dust. Filters that are rated at a four or below only stop particles that are greater than 10 pm in size, which includes pollen, dust mites, and carpet fibers. These filters are more affordable, but are not appropriate for those with asthma or ...
