Focus on cleaning the air after you’ve finished cleaning surfaces. Use air purifiers, moving them as necessary from room to room. The air filters should be cleaned or replaced, depending on the type of filters you have. Clean the air ducts by yourself or by hiring a pro. Finally, open doors and windows to ensure the space is properly ventilated.

While you’re busy swapping out that old compressor, now is a great time to have your furnace cleaned and serviced , especially if your home is older and your heating system is as old as your AC unit. Likewise, it’s a good idea to clean your air ducts to ensure air flows properly through the house.

Yes, many professionals offer HEPA filter upgrades for improved indoor air quality and allergen reduction.

A correctly installed air filter will fit snugly in its compartment. One that’s too thick or big won’t lie smoothly, and it can block the airflow, sometimes resulting in strange noises. A filter that’s too small or improperly fitted may move around in the compartment, resulting in strange humming or vibration noises. Poor fitting can eventually cause a buildup of dirt in the HVAC ductwork, and reduced indoor air quality can lead to sneezing or excess dust on your surfaces.