Breathing the dust from chlorine powder can produce asthma-like symptoms. Traditional chlorine bleaches contain sodium hypochlorite, an extremely dangerous oxidizer. Bi-products of the oxidation reaction are seriously corrosive. Chlorine solutions will burn skin and cause lung, nasal passage, skin and eye damage.Nature Clean's Oxy Stain Remover Powder is a 1% chlorine free bleach. It's a completely non-petroleum and non-phosphate product, free of dyes and perfumes.