Most homeowners run into this problem sooner or later. You want cleaner air, so you buy a better filter. A few weeks later, airflow feels weaker, the system sounds louder and energy bills creep up. Cleaner air usually means more restriction but that does not mean you have to choose one or the other. The ... The post Best Furnace Filters For Air Flow: How To Improve HVAC Efficiency Without Sacrificing Clean Air appeared first on KHTS Radio. ...read more read less