Fortunately, fixing and avoiding indoor air pollution are quite easy to do, with well maintained HVAC in Rancho Cucamonga homes. A properly working air conditioner will reduce water in the air, and with it, a great amount of water soluble pollutants. Likewise, by drying the air, turning on the A/C makes it difficult for dust mites to thrive. Additionally, it will also help to install HEPA filters in your air conditioning units. This can block tiny pollutants from the outside, such as pollens and dust particles, and keep them from getting inside. HEPA filters can also help ensure that your HVAC ducts remain clean and working optimally.