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Running your HVAC with a dirty air filter can damage your equipment. Over time, that damage can be severe enough to require an entire system replacement. At the very least, dirty filters will pump up your energy bills. To avoid these unpleasant consequences in your Charleston home, be certain that your HVAC systems are always operating with clean filters.

How Often Should Air Filters Be Changed?

Filter replacement is generally recommended every one to three months. The precise time at which filters should be changed depends on how many people and pets live in your home. Other considerations include outdoor air pollution levels and whether anyone in your home has allergies or a respiratory condition. The more people, pets, allergies, respiratory conditions and outdoor pollution, the more often you’ll need to replace your filters.

Do Filters Affect Indoor Air Quality?

Filters keep dirt out of high-tech HVAC equipment. Basic charcoal and fiberglass filters are the cheapest and least effective. They’ll protect your HVAC for about 30 days. HEPA filters with a MERV rating of at least 10 can improve indoor air quality. They’ll protect your home from biological growth, pollen, dander, dust mites and microbes. High-efficiency pleated filters can remove 90 percent of dust, and they last longer than other filters. Electronic filters are the most effective. Using electricity, they can capture smaller particles that other filters miss.

How Do You Change an Air Filter?

  • Check the HVAC system owner’s manual to locate the filter.
  • Turn off the power on the unit and at the circuit breaker.
  • Remove the existing filter.
  • Insert the new filter. There is an arrow on the filter’s frame that tells you which end of the filter should be pointing up.

Learn more about which HVAC filters would be most effective for your home. Call One Call Heating and Air at (843) 258-4686. We can show you how to change your filters.

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