The right furnace air filters not only protect the HVAC system, but can also remove odors and clean the indoor air

The main function of furnace air filters is to protect the heating/air conditioning unit from damage due to dust etc. The furnace air filter traps the particles before it enters the motor that pulls in air through the cold air duct.

However, new developments in filter technology by, among others Air Bear, now also allow us to improve the indoor air quality. To what degree depends on the type and quality of the furnace air filter.

The simplest furnace air filter consists of fiberglass or a polyester panel filter. Usually the filter is one inch thick, and it is adequate for filtering larger particles, like lint and hair.

Pleated filters are of a better quality. These furnace air filters will capture smaller particles: human hair, pet dander, spores and mold, and pollen. Important tough is that most bacteria, let alone viruses, are not filtered. Neither are smoke and odors.

There are also electrostatic filters on the market. As the air rushes through the filter, the filters get charged . This electrostatic charge causes the attraction of smaller particles than would be possible with a basic panel filter.

Some pleated filters are also electrostatic air filters, and in this combination are the most effective furnace air filter.

It is essential to remember to regularly clean or replace the furnace air filter, otherwise it will get clogged. This in turn causes less air flow to the heat exchanger, and less heat will be transferred out of the furnace. As a result the feedback system will conclude that there is ample heat and will turn off the furnace prematurely.
The bottom line is that you end up with a chilly house because the heater is working not optimally.

For more information on related products, please choose from the following:

 Whole House Purifiers | Replacement Filters