Most homeowners misunderstand the point of the air filter within their HVAC system. They think it is there mainly to protect against allergens and particles in their indoor air. This is partially correct, but not the main purpose nor the reason you should change said filter every 1-3 months.
So if you aren’t suffering from allergies at the moment, that doesn’t mean you get to escape the need of changing your air filter.
While helping your indoor air quality is a minor benefit of your HVAC air filter, it’s actually there to protect the interior components of your HVAC systems. Read on to learn more, and to see just how a dirty air filter can, in fact, hurt your HVAC system.