Most air conditioning filters should be replaced monthly, especially during peak usage months (April–September in Florida). However, the ideal frequency depends on several factors: Air Quality: Homes with pets or allergy sufferers may require more frequent filter changes. Household Size: More occupants generate more dust, necessitating more frequent replacements. Local Environment: Dusty or high-pollen areas may require filters to be changed more often. We recommend checking your air filter regularly and replacing it when it appears dirty or clogged. Keeping your filter clean helps your AC system run efficiently and enhances indoor air quality.