Concrobium Mold Control Spray, 32 oz.

I bought the Concrobium 25001 Mold Control gallon jug to treat some areas of microbial growth I found around my property. While it’s certainly not an all-in-one solution for large mold infestations, for the tasks I needed it handled very well: cleaning and treating smaller affected spots. The product sprayed easily, felt safe to use, and after treatment the areas showed significantly less visible growth. What I liked is that it didn’t leave a strong chemical smell, and the surfaces I treated stayed cleaner over time compared to untreated spots. Because I wasn’t dealing with a full-blown mold crisis, it fit my needs perfectly. That said, if you have extensive mold growth behind walls, in HVAC systems, or in areas you can’t fully inspect or clean, this alone won’t suffice—you’ll want a professional remediation service. For surface-level treatment and as part of a broader preventive regimen, though, this product is solid. Overall, the Concrobium Mold Control gallon jug did the job I needed it to do: cleaned the microbial growth I found and gave me peace of mind for those specific areas. If you’re looking to treat smaller spots safely and effectively, it’s a good choice—but don’t treat it as a full mold remediation fix.

I am IICRC certified in water restoration and mold remediation. I do insurance estimating and project management for mitigation and repair work. Concrobium is one of the benchmark chemicals and brands used in this industry. I use this spray bottle one for the temporary office we have set up in the wake of Helene. Older building and the basement brick wall get mold growth due to the water table, ground water intrusion, and simply the age of the property. This product is great for spot treating light to medium discoloration. Bleach is of course very effective but can stain and leave behind a lingering smell. This product does not. I use it to treat and wipe down the walls once a month. This is not a permanent solution or will be effective against stopping recurring growth and or excessive growth. You will need commercial grade quantities and proper drying and abatement to remove mold/discoloration permanently along with reducing the amount of relative humidity in the air IE you may need to install a permanent dehumidifier and or air scrubber. I also use this to spray down my work clothes if i’ve been in a very dirty job site or a hot messy job site that’s full of mud, downed trees, etc. This will help prevent clothes from having that weird body odor smell even after cleaning in the washing machine. I also use it on my work shoes. There’s nothing fancy or special about this product. It’s just consistent and you know what you are getting. I am sure you pay more just based on the brand but the brand is iconic in my industry for a reason. It’s because it has decades of service in water and mold restoration projects. We would also use this with a viruscide product and deodorizer and cold fog commercial spaces during 2020.

I’ve used it before and find it very effective. First used in bathroom, then reordered to use in bathroom tile. The spray bottle didn’t work when I first got it, no matter what I did. Ended up having to go buy a cheap one from the dollar store to actually apply it. It also smells faintly, so I recommend venting the area you use it in. I also recommend wiping down the areas or items you used it on a couple days after the mold/mildew dies off for residue.

I had mold on the lower two feet of my poured concrete basement walls. Just spray it on and the mold disappears. The smell is minimal. I highly recommend.

Lost a bit of the product as the cover came loose in transit but got enough to do the job. It works and no awful smell

I bought this item to remove mold and mildew. I live in a very old home and as I saw the mold and mildew I tried cleaning with diluted Clorox. That wasn't work so I went to Goggle and found this and a product Home Armour, also available through Amazon. The Home Armour is 2X, according to the label and it performed with NO SCRUBBING. The Concrobium required lots of scrubbing using a bristled brush. I found the Concrobium to work as an all purpose cleaner but the Home Armour is the choice for mold and mildew. The Home Armour requires ventilation and a mask but that was not a problem for me especially when you see the results. You will need to buy enough of the Home Armour to completely cover the areas. If any drips down it will be very visible unless you spray that area as well. As you can see from the pictures this was an area behind a bathroom mirror. I spayed one side with the Home Armour and the other with the Concrobium. After about 10 minutes you can see the results. I sprayed the Home Armour on the side that had bee treated with Concrobium and it was done in 10 minutes. I have used this in 2 closets with the same results. Love the Home Armour and the Concrobium for other light cleaning. Sorry, I wish I had a colored wall to try this on but the interior is all white plus paneling. The Home Armour did not affect the paneling and the Concrobium hasn't harmed the wood floors.

I had a musty smell coming from a closet that had had a leak. I wanted to kill the mold on the floor and walls but I didn't want to kill myself in the process with a toxic product. Even chlorine bleach is toxic in the environment, despite its being commonly found in most homes. Based on other reviews, I decided to try this and I am very happy that I did. The closet it now clear of the musty smell and I used it in the shower stall next. Mind you, this will not give the immediate gratification that bleach would. It does NOT bleach out the mold stain and it does not claim to. It is killing the spores, which is the most important part. Remove the stain using another method, which may involve a 10% bleach solution in water. (I know. The frustration of it all.) Check other sources, such as Pinterest, for ideas. Do not be disappointed that this product does not do it. This allows it to be used on surfaces that would be harmed by bleach, such as, fabrics, furniture, carpeting, car interiors. In fact, I ordered some for my sister who has a car that got wet inside and now is musty. I am confident that this product, along with copious amounts of fresh air, will solve the problem. Everyone has mold somewhere in their environment. Try this. You will, no doubt, be happy you did. I am. Can you make it cheaper, as suggested by another reviewer? It is not worth it for me to try that. This is cheap enough. Mold is a challenging environmental problem that has a huge impact on human health - more than people realize. I am just happy that there is a product like Concrobium that allows me to control it in a non-toxic way.

I am very surprised that this is able to be sold for mold removal. I didn't look at the active ingredients before I bought the product and I regret that. The active ingredient is Sodium Carbonate (soda ash). I could find no information online (other than the manufacturer's website) that Sodium Carbonate removes mold. I asked the manufacturer (Rust-Oleum) why the mold wasn't killed when they sell it for that purpose. I was informed that the mold probably leaves a black stain but the mold should be killed. I asked what to do about the stain and they said that it has to be removed with more product and a brush. asked how I would know if the mold was actually active or just a stain and I was told that I'd have to have it tested. That's not very practical it seems. At least with bleach I know that the mold is dead when it's no longer visible but I fully understand it can grow back. I'm trying to kill mold on a drywall ceiling so I don't really want to use bleach but at least I know it will kill the mold. This seems to be a very ineffective product. You'd never know if you had actually killed the mold or not because it is not oxidized as would happen with bleach or peroxide.