ELECTROSTATIC AIR FILTER REPLACEMENT / ELECTROSTATIC AIR FILTER FOR CENTRAL HVAC (21-3/4"x 16- 5/8"X1", GRAY)

DOMAGAL electrostatic air filter has a galvanized sheet frame, a 300 electrostatic polypropylene filter media and a polyester fiber with two outer meshes of expanded fabric.How does the electrostatic filter work? As the air passes through the fine wires, the positively charged particles are attracted to the negatively charged surfaces of the filter and vice versa, this is how the particles adhere like a magnet to the filtering system and remain attached to it, thus doing that the dust is retained efficiently.

• Quick & Easy Installation – making it simple to change out your old filters.
• Durability and long-lasting quality.
• Retain up to 93% of the particles up to 10 microns that make up most of the pollutants in the environment
• Rated at MERV 8 - Best to purify the air, high uptake of pollutants such as aerosols, dust, fiber and pollen Energy saving Neutralizes bad odors Increase your life time
• Heavy Duty steel frame
• NO ELECTRICAL CONNECTIONS NEEDED
• ASK FOR EXACT MEASURE!!!!!