Correctly understand disinfection function of ozone equipment
Ozone's toxicity, corrosiveness and safety explanation: Ozone is a safe gas with no toxic substances. When it comes to its toxicity, it is mainly due to its strong oxidizing ability. When the concentration is higher than 1.5ppm, personnel must leave the site because ozone stimulates people The respiratory system causes a stressful response of the respiratory system, which can seriously cause reversible damage. For this reason, the International Ozone Association (IOA) has established hygienic standards: the International Ozone Association: 0.1 ppm, 10 hours of exposure; the United States: 0.1 ppm, 8 hours of exposure; China: 0.15ppm, 8 hours of exposure, when the ozone concentration is 0.02ppm, people with sensitive olfaction can perceive it, known as the threshold of sensation, the concentration is 0.15ppm is the threshold of olfaction, the average person can sniff, It is also a health standard. When the concentration reaches 1-10ppm, it is called the stimulation range. In fact, the safe use of ozone can be guaranteed in specific use. The ozone equipment disinfection process should be isolated from personnel. General ozone equipment are automatically controlled. As long as the relevant parameters are set, unattended can be achieved. This is related to chemical disinfection. Agent spray disinfection requires specially trained personnel to perform on-site operations, which guarantees the health of personnel.
The environmental factors affecting the gas-phase ozone equipment sterilization effect are mainly temperature and humidity. Under normal circumstances, the killing effect is good when the temperature is low and the humidity is high, and the relative humidity is >70%, and the killing effect can be well reflected. This is because the increased relative humidity can swell the cells and thin the cell walls, making them more susceptible to ozone penetration and dissolution. Generally, the disinfection function of household ozone equipment depends on these main factors: the ozone threshold concentration, that is, when the ozone air concentration reaches this concentration requirement, it can have the ability to kill microorganisms; the type of microorganisms; treatment time; ozone distribution ; The temperature and humidity conditions in the space; the reducing influence of indoor walls, ceilings, floors and other decorative materials. Under the gas phase conditions, ozone has a different killing effect on microorganisms, and experiments have shown that ozone has a strong bacteriolytic effect on pathogenic bacteria and viruses of humans and animals.
Ozone has a strong oxidizing property. The ozone equipment can oxidize many metals. Aluminum, zinc, and lead will cause oxidative corrosion when contacted with ozone, but the ferrochromium alloy (stainless steel) containing 25% Cr is basically not corroded by ozone. Through the above understanding of the ozone equipment , I hope we can correctly understand the household ozone equipment. Ozone has the greatest corrosion effect on ordinary rubber, so in the application of ozone equipment, corrosion-resistant silicone rubber or rubber products with anti-corrosion agents are used.