... CE and ROHS approved 20g portable ozone machine for hotel with CEFeature:1 Outer case is made of the corrosion resisting ... stainless steel.2 mobile, conveniently to be used, flexible, and can be sterilized in a variety of target sites and many ... water, production workshop, sterile room, equipment, tools and so on.5, the pharmaceutical industry: production, such as water, central air ...