Actually, bleach only removes the stain created by mold but does not kill it, which is why is always comes back and needs to be re-treated. Hydrogen Peroxide dissolves the protective cell surrounding mold, which dehydrates it and it dies. Mold only survives with water, which it can hold internally for years until there is an external source allowing it to grow and spread. The visible black stain is the mold waste product, the actual mold is invisible to the naked eye. By the time a stain is visible the mold colony contains billions of cells, which become airborne to feed on any moist organic surface, and also aspirated into your lungs. Molds also “breathe” mycotoxins, or gas, into the air which cause health problems. Not all mold is dangerous to humans but Cladosporium, Penicillium, Aspergillus, Alternaria, and Trichoderma are the most to be concern about in the home.
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