Key Points Clean air vent covers to avoid bad air, high bills, and mold.Use soap, water, and a brush for a quick clean—just ...

However, the air filter in your home’s HVAC system should be changed every 60-90 days. If you notice your filter is especially dirty when you go to replace it, consider adjusting the schedule ...

Similarly to square footage, the more vents you have, the more the air duct cleaning will cost. Expect to pay between $25 and $50 per vent. NUMBER OF VENTS COST ; 8. $200 - $400. 10. $250 - $500 ...