I cannot stress how much bleach is harmful to our environment and our health! However most of us have been taught that Bleach kills every bacteria and mold out there. Bleach does not kill mold! If this were the case why are you constantly having to spray it in the same areas in the shower? Bleach can’t kill mold growing on porous surfaces and materials. It can however cover it up, but it never gets to the root of the mold. It is a harsh and corrosive material and after repetitive sprays it will begin to eat away at the grout and caulking in your bathroom. Bleach gives off harmful fumes and if mixed with other components it can become extremely harmful to your health. Bleach was used in World War 2 as a chemical weapon so why are we still using it today? Lack of education I would say. I have found the best alternative to Bleach in mold and disinfecting situations are two items in two separate bottles. White distilled vinegar and Hydrogen Peroxide kill mold to the root and are not harmful to the air you breathe. Vinegar is a mild acid and can kill over 80% of mold species. Spray it undiluted on the areas affected by mold. Then get your bottle of store bought 3% concentration of Hydrogen peroxide and put a spray cap on the bottle. It must remain in the dark bottle to work. Hydrogen peroxide is anti-fungal and anti-viral. Its chemical makeup is basically water with an extra oxygen molecule. It is not harmful on your surfaces or the environment. Spray the same area that you sprayed the vinegar and these two products will kill the mold. Never put the vinegar and hydrogen peroxide in the same bottle as it together causes a totally different makeup of solutions. I recommend keeping a bottle of undiluted white distilled vinegar in a spray bottle, and a bottle of 3% hydrogen peroxide in place of your bleach bottles. You will not only kill mold to the root without harming the atmosphere and your health but these two solutions together will disinfect. Serving Austin and its surround counties with Eco Friendly maid services since 1996