Factors Affecting Disinfection By Ozone Generators

Objective Factors Related to Ozone Generator Use:

1. Room Sealing: As ozone is a gaseous disinfectant, its concentration in the air is easily maintained and enhanced under sealed conditions, ensuring effective disinfection. Therefore, please close doors and windows to maintain a good airtight seal when using it.

2. Do Not Use Beyond the Required Size: Different models of disinfection machines are suitable for different size ranges. Using it beyond the required size will result in insufficient disinfection concentration, affecting the disinfection effect.

3. Pay Attention to Air Humidity: Ozone generators require a relative humidity greater than 60% to operate. Higher humidity leads to better disinfection. If the air is dry, especially in winter when rooms are heated or on higher floors, it is recommended to sprinkle some water (about a basinful) on the floor before disinfection to increase humidity.

4. Use Alone: ​​Ozone generators eliminate other indoor odors while disinfecting. Therefore, do not use them with other chemical disinfectants or ultraviolet lamps to avoid reducing the ozone disinfection concentration.

V. Start-up Time: A single sterilization cycle should ideally last 2 hours to achieve the standards for a sterile room.

VI. Verification of Air Sterilization Effectiveness: Currently, the sedimentation plate method is used in China to test air sterilization effectiveness under static conditions. The ozone generator should be shut down for 30-60 minutes. During this time, the ozone gas automatically decomposes back into oxygen, but it still retains its sterilization function. Therefore, doors and windows should remain closed after shutdown. A 2-hour interval is recommended. Air sampling and culture should also be performed 60 minutes after shutdown. Before sampling, personnel should not enter the sterilization area. The sedimentation plate method should be repeated multiple times to obtain accurate results.