From Med Effect, Inc, The Halo Disinfection System for cleanrooms kills bacteria, viruses, and fungi, including mold. The hydrogen peroxide dry fogging system is EPA-registered #84526-6 to kill 99.9999% and >6 log of C. difficile spores. Positively charged ions reach all exposed surfaces. Fogging by-products are water and oxygen, so there is no residue and no wiping is required. Halo is colorless, odorless, safe, quiet, and easy to use, and will not harm sensitive electronics, surfaces, or substrates, including stainless steel. The 50-pound system is lightweight, portable, and can be operated by one person.