... quartz ozone tube.3. Power supply.4. Fans for cooling. Applications:1. Air purify for room, like house, hotel, Karaoke, swimming pool ... bus station, supermarket, office buildings.2. Sterilize and disinfect for food, like vegetable and fruit.3. Water Purifying and ... etc4. Oxygen increasing: improve the oxygen level for air and water5. Ozone for health: air purification, expedite human metabolism ozone ...