The bitterly cold Massachusetts winters and stifling summers keep home comfort systems humming nonstop all year long. If you're not replacing the HVAC air filter when it's dirty, you could be causing the premature failure of your heating and cooling equipment. Clogged air filters restrict airflow and cause the system to overheat and shut down. They also allow dust to build up on interior components. Even a very thin coating of dust will reduce system efficiency. And don't forget, the air filter is your first defense against poor indoor air quality, removing harmful pollutants and allergens from your air.
This fall, make a point to stock up on air filters to make changing the furnace filter more convenient. Plan for a filter change every month, but depending on several factors, like how dusty your area is, whether you have pets, and the size of your household, you may only need to replace the filter every two or three months. A monthly check is essential, however, to ensure the filter isn't dirty.
Choose the Best Furnace Filter For Your Needs
The effectiveness of an air filter is measured using the minimum efficiency reporting value (MERV), which indicates the percentage of particles of a particular size that the air filter will trap. Ranging from 2 to 12 for residential systems, MERV can help you choose the best furnace filter for your air cleaning needs.
- MERV 1 to 4 air filters are cheap and flat, and they provide only minimal protection for a furnace. They only trap particles larger than 10 microns, so they don't improve indoor air quality by much.
- MERV 5 to 8 filters are of good quality and adequate for most air quality needs, trapping particles as small as 3 microns.
- MERV 9 to 12 filters are of superior quality, trapping particles as small as one micron. They're the best choice for reducing allergy and asthma symptoms.
For more advice about finding the best furnace filter for your home, please contact in the Route 495/128 area of Massachusetts at Rodenhiser Plumbing, Heating & Air Conditioning.
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