Derek ColeGM, Simmons One Hour Heating & Air · AI HVAC Answers

Is Your HVAC Making You Sick? Hidden Dangers Revealed! #shorts

22 Sept 2026 · 1 min

Watch on YouTube

0:32

In this YouTube short, Derek Cole explains that all indoor air passes through the home’s heating and air‑conditioning system, so any contamination inside the unit can affect occupants. He warns that HVAC units operate in damp, dark, and cold conditions that promote mold or other microbial growth, which can cause illness. Cole advises viewers to have a qualified professional inspect their system for such growth and invites anyone who’s noticed mysterious material on vents to share their experiences in the comments.

Chapters

The crazy thing about heating and air is that all the air in your home at some point comes through that system. So if your system is making you sick, you could have some growth going on. You need to get it checked out by a professional because the unit's in a damp, dark, cold environment. And what happens when you have that? You have growth. Things start happening, things you don't want to happen. So get a professional to come out and take a look at your system and see what's happening. Have you ever had stuff growing on your vent? You weren't sure what it was? Leave your story in the comment below.