... Salmonella typhimurium Salmonella is 99.99%, clean air, blocking the air-borne diseases.Decomposition of formaldehydeGreenway molecular chlorine ... dioxide disinfection can be effectively degraded air formaldehyde, benzene, phenol and other harmful gases. ... SafetyNon-toxic no residue, no secondary pollutionChlorine dioxide in the air quite a range to kill harmful bacteria, virus ...