I'm worried about strange odors coming from my air conditioner

I love wonderful aromas.

I like burning candles, incense, and sage leaves in my house and letting the scents circulate through my air conditioner to fill every room in my house at once.

The best source of pleasant smells is cooking delectable foods. Nothing beats the smell of fresh bread cooking in the oven, short of cake or some other mouthwatering dessert. Even the smell of sauteed onions and garlic brings comfort to my mind. So with that said, I was naturally disturbed when I started smelling strange odors coming from my air conditioner vents. I scoured my house looking for anything that could produce foul odors—like garbage cans, sink cabinets, bathroom drains, and anywhere close enough to an air register to get pulled in by the air conditioner. I found absolutely nothing that could produce the odor I was smelling in my air. I called my HVAC technician to inspect the entire system for clues. The good news is he found the source of the smell within minutes of starting his inspection. The bad news is that the source of the odor is a mold contaminated evaporator coil. He explained that this necessitated swift action but was otherwise normal in my climate. The effect of freezing and defrosting creates ample amounts of water, some of which isn’t caught by the condensate drip pan. This additional moisture can in the right conditions grow mold and mildew. Thankfully, he carries a special antimicrobial and antifungal aerosol spray made specifically for evaporator coils. It even works on dehumidifiers for the same purpose. After he cleaned my air handler with his spray, my house is finally rid of that odor.

Steam boiler