A Microscopic Look at What’s Hiding in Your Heating Ducts

Do your allergies flare up when you switch on your central air or heat? You’re not alone. Turning on the air conditioning or furnace when the weather changes stirs up all kinds of allergens, and circulates them throughout the house. Take a look at what may be lurking in your vents, and learn what you can do to clean up the air in your home.