Air Conditioner Filters

There are a number of common types of air filters available, below you will find them described:

Fiberglass Filters - These are one of the most common hvac system filters and probably the least efficient. This cheap, widely available filter traps as little as 12-18% of the particles in the air and don't impact contaminants such as smoke, pollen and similar pollutants. Plan on replacing a fiberglass filter every 4 weeks.

Pleated Paper Filters - These paper filters are a good upgrade from the basic fiberglass filter stopping as much as 40% of in-air particles. The paper is pleated (similar to most car air filters) increasing the surface area which allows for a finer mesh pattern without reducing the amount of air flow. The finer mesh pattern ensures that smaller particles are trapped. Plan on replacing your pleated paper filter every 6- 24 weeks.

Electrostatic Filters - Able to be cleaned and reused the electrostatic filter creates an electrical charge which helps trap particles. More efficient than fiberglass filters they still may only remove 20-25% of the in-air particles These filters should be cleaned regularly to maintain their ability to trap particles and to keep the air flow from being reduced. Plan on cleaning your electrostatic filter 2-4 weeks depending up on the amount of dust and other particles in your home.

Electronic Air filters - Electronic air filters offer the best filtering typically available for a consumer hvac system. (HEPA filters are not usually used except in commercial buildings such as hospitals, schools, etc..) The filter can remove as much as 85% of the airborne particles but will require modifications to a systems wiring and ductwork.

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