That response comes from The Clorox Group, Oakland CA, Ultra Clorox Daily Bleach manufacturer and distributor. Their independent laboratory-supported Tech Department studies indicate that “3/4 cup of Clorox liquid bleach per gallon of water will be effective on hard, non-porous surfaces against… Aspergillum Niger and Trichophyton mentagrophytes (Athlete’s Foot Fungus)” on hard, non-porous surfaces. The company didn’t specify whether or not chlorine bleach destroys other moulds and fungi. Their terms’ rigid, non-porous” surfaces’ include the caveat. The need to clean wood and wood-based construction products, both of which are porous materials, requires mould remediation. The use of bleach is better left for kitchen and bathroom countertops, tubs and shower glass, etc., as a mould disinfectant. What you want is an EPA licenced disinfectant explicitly formulated as an anti-fungal.As the bleach sits in warehouses, on grocery store shelves or within your home or company, what potential mould “killing” power chlorine bleach can have is greatly diminished. In only the first 90 days within a never-opened jug or jar, Bleach loses 50 percent of its killing capacity. The chlorine that continuously escapes through the plastic walls of its containers is broken down by ultra violet light. Want to learn more? visit websit.
Chlorine does not penetrate into porous materials such as drywall and wood through the ionic structure of bleach, it only remains on the outer surface, while mould has enzyme roots that expand within the porous contraction materials, but the water content penetrates and actually FEEDS the mould. This is why you will find darker, more dense mould emerging in the bleached area a few days later.
Chlorine Bleach accelerates plastic degradation and breaks down porous material fibres.
Chlorine Bleach is NOT an EPA licenced disinfectant intended for mould killing. When you are unable to locate an EPA registration number for destroying mould on the label of any chlorine bleach brand, you can check this important fact for yourself.