The answer to 'lifespan of air filter' is that the typical lifespan of a standard air filter for a home HVAC system is 1-3 months. Air filters are designed to capture dust, dirt, and other airborne particles to keep your HVAC system running efficiently. However, the actual lifespan can vary depending on factors like the filter type, home size, number of occupants, and amount of indoor air pollution.
It's generally recommended to check and replace your air filter every 1-3 months, or as needed based on visible dirt and debris buildup. Neglecting to change the filter can reduce airflow, strain your HVAC system, and negatively impact indoor air quality. Be sure to use the correct filter size for your system and consider upgrading to a higher-quality pleated filter for better filtration.