When the ozone concentration is 0.02ppm, people with a sensitive sense of smell can detect it, which is called the sensory threshold. When the concentration is 0.15ppm, it is the olfactory threshold, which can be smelled by most people, and it is also a health standard point. When the concentration reaches 1-10ppm, it is called the irritation range. In fact, the safe use of ozone can completely ensure that human health is not endangered. Ozone has been used for more than one hundred years, and so far there has been no fatal accident due to ozone poisoning in the world.

The sterilization effect of ozone is most ideal when the humidity is 70-80%, and the effect is poor when the humidity is lower than 45%. Therefore, it should be used in the environment, especially in the sterile room and ward of the pharmaceutical workshop. Increase humidity appropriately. #Sterilizer

When using ozone for air disinfection, attention should be paid to: the sterilization effect of ozone K is the product of the actual concentration of ozone C and the action time T, namely K=C×T, and the actual concentration of ozone C reaches the sterilization threshold concentration Cmin, even if the time is extended, In actual operation, there is probably no sterilization effect. Ozone should be used for air disinfection according to different application spaces and different sterilization and disinfection purposes, and ozone generating devices with different ozone production and ozone concentration should be configured. The ozone generation concentration refers to the concentration in a fixed volume for 30 minutes by natural diffusion. The unit is mg/M3. The ozone production is calculated from the accumulation of ozone production concentration and time. Ozone production and ozone production concentration are the most basic parameter standards. Therefore, ozone disinfection products for the purpose of air disinfection should be marked with disinfection concentration and disinfection time indicators. There are also two general indicators, namely the ozone safety indicator of the application space and the product life indicator, etc., which also need to be indicated to the user. Such as general deodorization, deodorization, etc., the concentration should generally not exceed 0.05ppm. If it is used for indoor sterilization, it is generally controlled at 0.1-1ppm; the surface of the object or the ward area generally requires a higher concentration.

Air disinfection type Ozone Sterilizer selection. Since ozone can only be produced on-site, the most economical and mature way to produce ozone is corona discharge, and most ozone generators used for air disinfection use ceramic chip high-frequency discharge mode, which has simple structure and performance. It has the advantages of reliability, low operating cost and flexible adjustment.

The safety of ozone air disinfection. Ozone safety In a wide range of animal and human tests, the main exposure route is inhalation. Continuous and long-term inhalation tests show that ozone is not carcinogenic (NTP, 1995); however, it has a significant stimulating effect on the respiratory system of animals and humans. Exposure to the environment can affect respiratory function. Therefore, we suggest that the use of ozone to disinfect the air should be carried out in an unmanned environment, and personnel can enter only half an hour after the disinfection is completed.