The frequency with which your air filters will need to be changed depends on a number of factors, including the type and quality of your filters, how often you run your heating or cooling system, and the level of pollutants in your indoor environment. Generally speaking, most standard air filters should be changed approximately once every 3-6 months, or more frequently in the case of high-quality filters that are designed to be more effective at capturing allergens and other irritants. If you notice that your air filter is dirty or clogged, it is a good indication that it may need to be replaced sooner than recommended.
There are a number of different options for getting your air filters changed, including do-it-yourself kits and online retailers. However, if you are looking for the highest quality results and want to make sure that your system is working as efficiently as possible, we recommend scheduling an appointment with a professional heating and cooling company.