Mold Medics "M" is a chlorine-free alternative to kill mold, bacteria, odors and allergens. It is the ONLY fogger available that treats microscopic airborne spores while penetrating porous surfaces, cracks and crevices to reach hidden mold, bacteria, and pathogens. This product is made from natural ingredients. It will kill MRSA, E-Coli, and some Flu viruses. The residual value of Mold Medics "M" is 5 days. For more information, feel free to call our phone number listed.