Most modern homes are airtight and sound-resistant, but homeowners pay a price for that efficiency in the form of stale, contaminated, recycled air. Luckily, good HVAC contractors can improve your home’s indoor air quality via filtration systems and high-quality equipment. “Many homes don’t ventilate well, and you should definitely be aware of that for your health’s sake,” says Gil Medrano Jr., owner of All Weather Heating & Air Conditioning Inc. in Vacaville. “Homes have a lot of chemicals in the form of paint and carpeting, but good ventilation and fresh air counteract that and provide a cleaner indoor environment.”
Mr. Medrano says the best air filtration systems capture airborne particulates like molecules, gasses, formaldehyde, chloroform, mold, mildew, algae and pollen. “MERV filters attack these molecules, oxygenate them and turn them into air that’s safe to breathe.” Other air sanitizing systems use ultraviolet lights to scrub and sanitize air as it passes through the filtration systems.
Getting cleaner air in your home
If you’re in the market for a new HVAC system, make sure the one you choose has features that are designed to improve indoor air quality. Then, hire a qualified contractor who can install the system to code so it operates correctly.
If your existing system still works well, there’s no need to replace it. “You can retrofit for better indoor air quality,” says Mr. Medrano. “The first step is to make sure your existing duct system is sealed. If your duct system leaks and draws in contaminated air, it’ll spread that air to your home.” Duct leaks in attics, crawlspaces, garages or between walls can bring in toxins, diseased air, mold, allergens and other particles you don’t want to breathe.
Once your ducts are sealed, it’s time to clean out the furnace and ducts and add good air filtration systems to the unit. “A good filtration system makes a lot of sense,” affirms Mr. Medrano. “Maintaining good indoor air quality will keep you and your family healthier.”