How often do I really have to change my filter?

In the summer or winter, changing your filter once a month is a good idea – for your health and your HVAC system’s! Besides reducing allergens like pollen and dust in your home’s air, a clean filter keeps dust and dirt from building up in your HVAC system, a problem that can lead to early system failure.

A dirty filter also slows down air flow, so your air conditioner has to work harder to keep you cool. That means a high energy bill you’ll have to work harder to pay for.

Check your filter once a month: if it’s dirty, replace it. Otherwise, replace it at least every three months for best results.