... , portable one 3, CE and ROHS approved 20g portable ozone machine for hotel with CEFeature:1 Outer case is made of the ... sterilization, long-life design4 air-source and oxygen source one machine, the customer can use on demand Useful: 1, the laboratory ... , locker room, sterile room.6, the medical industry: such as hospital wards, operating theaters, medical equipment, sterile room Also we can ...