Can a Dirty AC Filter Make You Sick? Here's the Truth
Most of us don't really think about our HVAC system until it stops cooling, but can a dirty ac filter make you sick if you let it go too long? The short answer is a pretty resounding yes. It's not that the filter itself is some kind of biological weapon, but when it's clogged up with months of household "gunk," it stops doing its job and starts becoming a part of the problem. Instead of catching the bad stuff, it begins to cycle it back into your living room, your bedroom, and eventually, your lungs. ...