10 RMB 3c fire mask can be flame retardant?

10 RMB 3c fire mask cannot be flame retardant. Fire mask is a respirator mask used for fire escape. It is a necessary personal respiratory protection device for hotels, hotels, office buildings, shopping malls, banks, posts and telecommunications, electric power, public entertainment places, factories, houses, subways and other fire accidents. And it can't be flame retardant.