Keyword Analysis & Research: what is a furnace filter whistle

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Frequently Asked Questions

What furnace air filter should I buy?

The higher the MERV rating, the more efficient the filter. The American Society of Heating, Refrigeration and Air Conditioner Engineers (ASHARE) recommends a MERV 6 or higher. Most people go with a MERV 8 filter. Most residential areas can remove contaminants with MERV 8 to MERV 13, while most hospitals use MERV 14 to MERV 20.

Should my furnace have an air filter?

Yes, air filters are an important part of your heat pump system. The air filter helps to keep your indoor air clean by removing airborne contaminants, like allergens, from the air.

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