Even small adjustments in a home can get rid of stale air and allow homeowners to have a cleaner, healthier space. Moving furniture around, for example, can make a big difference in how certain spaces feel. Ventilating stale air by opening windows and bringing fresh air in from outside can help remove old air. Think about investing in an air purifier according to Ireland Heating & Air Conditioning. Clean air filters do a lot for a home. First, they make sure the HVAC system isn't working overtime. Second, they keep the dust and other pollutants out of the air.