First and foremost, change the HVAC heating filters. No matter what your system, no matter if it’s during the winter or the summer, spring or fall, make certain that you have a clean filter. They are incredibly cheap, and once you change it the first time, it will be a snap each time after.
Don’t be fooled, these filters are not designed to catch every allergen and dust bunny floating into your HVAC system. They simply catch as much as they can. Once they get clogged or dirty, they will allow dust and allergens to be blown right into your home, onto your children and pets. By replacing the filters regularly, you are making sure that you and yours are breathing the best air you can from the vents.