Traditionally, a furnace air filter aims to only capture relatively large particles of dust. Now, however, advanced models that use HEPA or electrostatic air filtration have been able to maintain high efficiency ratings of more than 90%, which simply cannot be compared to the weak 5% efficiency filtration of a disposable filter.

Electrostatic furnace filters are extremely balanced filters, designed to remove 95% of contaminants from the air and have little restriction on the air flow; this ensures that your furnace doesn’t begin to over-compensate for reduced air flow due to a dirty filter and wear out.

Other Benefits Found in the Cost: They have a lifetime warranty, and are extremely easy to maintain, needing only to be washed out every three months. They save you hundreds of dollars by eliminating the monthly cost of purchasing disposable filters. It can be claimed on your insurance if it has been prescribed by a doctor and covered in your health plan.

HEPA air filters may be more expensive and may require special installation, but they can efficiently trap even submicron particles; they are up to 99% efficient, making them the number one choice on the market today if you live in high pollution areas or suffer from dust allergies.

It is very important that while capturing the dust particles, the furnace air filter does not restrict the furnace air flow. This is why any furnace filter will need regular inspection and maintenance or replacement.

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1. Check all doors and windows for possible drafts. Apply weather stripping, caulking, or putty where the heat sneaks out

2. Test all smoke detectors, and replace batteries if necessary

3. Change the air filter in your furnace

4. Check for proper insulation, especially in the attic, as heat does rise

5. Protect your plumbing even if your pipes have never frozen in the past. Use pipe jackets, fiberglass insulation, or electric heating tape. Wrap lines that run through exterior walls.

6. Insulate your hot water tank to retain heat. It’s better for the environment and winter bills

Outside:

1. Remove leaves from gutters

2. Disconnect hoses and store them indoors for the winter

3. Trim trees and shrubs that touch the house

4. Put up storm windows

5. Stock up on sand and salt if you live in an area prone to icy, snowy weather

6. Have your chimney inspected every year and cleaned if necessary

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