Concrobium Mold Control, 1 Gallon Refill, Eliminates and Prevents Mold, EPA Registered, Bleach Free, Odorless, VOC Free, For Indoor and Outdoor Surfaces

Under the sink base there was a mold on the wood. Applied this spray 3 days. Seems like it handled situation well. But if your wood is too damaged or the mold is deep you will need a prof cleaning. Spray wont help.

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Working

Easy to use in my pump sprayer and no leaks in the box it came in. Works as advertised.

I used this Concrobium to kill the mildew smell inside a circa 1960s drop front type desk with cubbies and drawers inside. I did it in two stages. In the first stage, I applied it with a paintbrush to all the bare wood and wiped off the excess to clean it, and much grime did come off. I used cotton rags, cut up from t-shirts,instead of paper towels. I removed and treated the drawers first, two large ones, and five small ones from the inside. After doing the first stage cleaning, I let them dry and then followed with a second coating to treat the cleaned wood. I was generous with the product, but was sure to wipe off the excess so as not to over soak the wood(which I probably did anyway), and so there would be no powdery residue left from the product. I approached the desk cabinet itself in the same way. One coat and wipe down to clean, let it dry, and then a second coat and wipe down to kill the mildew smell. I brushed it on all the bare wood surfaces, including the back and underneath of the desk, inside the large drawer openings, and inside each cubby, and each cubby drawer opening, then wiped off the excess. I left everything to dry for a couple of days, even though it didn't need that long, because the product stated that it actually kills the mold during drying process. The wood was very dry afterward and needed moisturizing/conditioning. I brushed on a generous layer(and wiped off the excess) of "Howard's Feed-N-Wax" wood conditioner which I bought at Ace Hardware. I let it sit a couple of days, then wiped it off any further remaining excess. Fyi, I used way too much I because I had to wipe it down several times with days in between before all the excess came to the surface wiped and the wood has some over saturated spots of conditioner...so I dodged a bullet of comprising the wood integrity by over conditioning... The results were so rewarding. There is virtually no mildew smell left within the desk at all. I am using the desk as well, so it is not being left closed up. The desk had been stored in a garage for 18 years. It didn't have visible mildew but smelled horribly. I believe the product was successful because instead of spraying it on, I used a brush to apply it which gave better coverage, and deeper absorption. Also I brushed it on twice. First time to clean it, and second time to treat it. And because I was sure to wipe the wood down both times afterwards which removed a lot of grime on to the rags. Wiping down will also assure there will be no white residue remaining as the manufacturer warned in their instructions. In my opinion, simply spraying on the product would not have been enough coverage to get deep enough into the wood and kill the mildew for this particular desk. The wood felt very dry after I treated it but the desk already needed conditioning. I probably used more of both products than was ideal, particularly the conditioner because I haven't worked with furniture before. I am so glad to have found this product that is safe to use, has no chemical smell and can be used on wood. I was very fond of the desk as my mom used it regularly when I was growing up and I wanted to keep it after she passed. Before trying it myself, I actually hired a refinisher to clean it but he couldn't remove the smell. He said he didn't know of any product for removing mildew on furniture. This product is also used for commercial cleanup, for example, for killing mildew after a flooding event. Wood, carpet, fabric, etc.

Item is ok. Odorless and convenient for most surfaces. Hopefully useful against mold

As a real estate professional, I’ve encountered many small surface mold issues during pre-listing prep and inspections, and Concrobium Mold Control is my go-to product for minor projects. It’s easy to use, has no harsh bleach odor, and works well for treating small affected areas like bathrooms, window sills, and closets. For homeowners, it’s also helpful to know that the EPA generally allows individuals to address mold themselves when the affected area is small (commonly referenced as under about 10 square feet) rather than requiring professional remediation. For those limited situations, this product has been a reliable solution in my experience. Of course, for larger infestations or hidden moisture problems, I always recommend professional mold remediation. But for small, visible spots, this has consistently been an effective first step.

Item came with seal broken. Spilled out. Bad experience