Concrobium Mold Control Pro, Gallon, 625001 (2 Gallons)

I wasn't sure what to expect, but am pleasantly surprised that it worked instantly on the interior of the HVAC system to stop the mildew growth. I first used household vinegar, applied with a sprayer to the HVAC radiator which immediately stopped the strong mildew smell being circulated out each vent. But that may not be good for the metal long term, so I found this product to use going forward. I then used a garden sprayer to apply this product a few days later to the inside of the HVAC box, thoroughly soaking the radiator. There was no smell whatsoever. I wore gloves and a mask, in case the salts are caustic to skin, but there were no noticeable fumes. It's been a month. There has been no re-growth. No smell from the HVAC unit. I do not know if it will eventually wash off from condensation. But even if it had to be re-applied every year, it would be worth it.

This product is well worth the money. It took care of the mold in one treatment and after months it hasnt returned.

Excellent product.

After a major flood from a hurricane. I used this throughout the lower portion of the house after walls were removed. Prevented mold growth. I can recommend.

We had 2-1/2’ of water n our house with Hurricane Milton and this worked fabulous spraying it on everything after removing the wet areas. No mold growth once everything was dried out and rebuilt

My go to for mold remediation.

I used a new pump sprayer so product wouldn't be contaminated by weed spray.