Here, at MackyDo's Hvac, we pride ourselves in keeping your home's air clean. Changing your air filter regularly is important for maintaining this goal of non polluted air. An air filter eliminates solid particles such as dust, pollen, mold, and bacteria from your home or buisiness' air. Air filters are generally installed inside of heating and veinlation systems and are used to trap and collect debris and dirt. Contact us today to learn more!