When using an ozone generator for space disinfection, how long should it be turned on? Ozone has a significant bactericidal effect on microorganisms in the air. Using an ozone concentration of 20mg/m3 (10ppm) and leaving it for 30 minutes can achieve a 90% or higher kill rate against natural bacteria.
However, to achieve an ozone concentration of 10ppm, the length of time the ozone generator is turned on depends on several factors:A. The size of the disinfection area;
B. The level of air pollution in the space;
C. The cooling status of the ozone generation equipment; (if the surface temperature of the ozone generator exceeds 50 degrees Celsius, ozone will decompose into oxygen, reducing the ozone concentration);
D. The ozone concentration of the ozone disinfection equipment (how much the ozone generator weighs). Generally, within a specific area, the higher the ozone concentration, the shorter the turn-on time. If the concentration of the ozone disinfection machine is too low and the disinfection area is large, the disinfection effect may not meet the required standards.
For spaces with an area of 40-60 square meters, it is recommended to use an ozone generator with a production rate of 10g/hour. The turn-on time is generally between 30 minutes to 60 minutes. The appropriate ozone output should be calculated based on the space size.
How long after ozone disinfection and sterilization is it safe to enter the room?A. Determine the time based on the ozone concentration. Typically, the half-life of ozone in the air is 20 minutes, and the safe ozone concentration is 0.1ppm.
B. After the disinfection is completed, wait for half an hour before entering the room, then open windows and doors for ventilation. The combination of diffusion and automatic decomposition of ozone can quickly reach a safe concentration.
C. In addition, ozone itself has a half-life, which means that the "residual" ozone (additional ozone) produced will usually be reduced to oxygen equal to half its level within 30 minutes.
In office areas, it is recommended to turn on the disinfection machine for half an hour to one hour after work hours when there are no people in the office area. During the disinfection period, make sure to close windows and doors! In farms, the concentration of ozone disinfection machines is generally higher, and the turn-on time is usually around 15 minutes. Each disinfection session should not exceed half an hour! Turn on the machine for 15 minutes, turn it off for two hours, and then turn it on again. In farms, disinfection is usually carried out under ventilated conditions. It is recommended to perform regular cycle disinfection for better results!
The above answers address how long an ozone generator should be turned on for space disinfection and how long it takes for it to be safe after disinfection. If you have any other questions about selecting an ozone generator, please contact our online customer service.
