Replace your filters every 3 months is important
to improve air quality removing dust pollen and smoke from the air.
The air filter in your HVAC system is something you probably don’t think about much. But a good air filter keeps your furnace and central air conditioner humming along by protecting the mechanicals from dust and debris.
Filter is impressive at removing dust, pollen, and smoke from the air when the HVAC system is running on its highest fan speed, earning an Excellent rating in that test. But at the lowest speed, the filter is only average at removing those same airborne particles. Airflow through the filter remains strong in both instances.