... disinfectant,Efficient, Freindly operation, Safety,Low dose,no 2nd polution Chlorine dioxide disinfectant,Efficient, Freindly ... -time set, periodic work automatically.SafetyNon-toxic no residue, no secondary pollutionChlorine dioxide in the air quite a ... safety into ordinary inorganic substances.Completed360 degree no dead disinfectionGreenway pure molecular chlorine dioxide disinfection machine ...