Nowadays, the disinfection cabinet has become an indispensable electrical product in restaurants, bars and families. Of course, it has a reason to be favored. Disinfection cabinet can effectively kill germs carried on tableware used in our daily life. Ultraviolet disinfection cabinet is our most common tableware disinfection cabinet, and its disinfection room is equipped with an ultraviolet generating tube, which will generate ultraviolet rays with a wavelength of 253.7nm, which is the most lethal. However, using ultraviolet rays alone as the sterilization factor of the disinfection cabinet can not achieve the overall sterilization effect, because ultraviolet rays can only travel in a straight line, so the disinfection cabinet needs to use ultraviolet rays in conjunction with other materials to kill germs better. The following small series will analyze the effects of these different materials for everyone!

I. Disinfection time of ozone-free ultraviolet disinfection cabinet

The ozone-free ultraviolet disinfection cabinet mainly uses the luminous principle of the lamp tube, because the lamp tube contains mercury atoms, which will produce the characteristic spectral line of mercury after being excited, and then the low-pressure mercury bubble will produce ultraviolet rays with a wavelength of 254mm, and the glass tube wall will be transmitted by ultraviolet rays. Therefore, ozone-free ultraviolet disinfection cabinets are generally only used in public places. Ultraviolet disinfection at this wavelength can prevent some germs from spreading in the air and through the surface of objects, but this disinfection method is not suitable for use at home. Because this disinfection method has a large disinfection area, the disinfection time is generally about 30 min-45 min.

Second, the ozone ultraviolet disinfection cabinet disinfection time

Ozone itself is a strong oxidant, which has a strong oxidizing property, so it has a strong sterilization and disinfection effect in life. When the ozone concentration is high, people will feel chest tightness and shortness of breath, so it is only allowed to adjust the ozone concentration to 0.3 mg/m 3 at the job site. There are two ways to generate ozone, one is to generate ozone through an ozone emitter, and the other is to generate ozone through an ozone ultraviolet germicidal lamp. The ozone ultraviolet disinfection lamp installed in ordinary ozone disinfection cabinet is widely sought after because of its good sterilization effect and low cost. According to the national standard GB 17988-2004, the ozone concentration in ozone disinfection cabinet of one star should be ≥ 200 mg/m 3, and the disinfection time should be ≥ 30 min. The ozone concentration in two-star ozone disinfection cabinet is ≥ 40 mg/m 3, and the disinfection time should be ≥60min.

Three, low temperature ozone ultraviolet disinfection cabinet disinfection time

The disinfection and sterilization effect of ozone ultraviolet disinfection cabinet has always been obvious, but if PTC hot air circulation system is added for low-temperature drying on this basis, the sterilization will be more comprehensive, there will be no dead angle sterilization in the disinfection cabinet, and the efficiency will be improved a lot. However, PTC hot air circulation system costs a lot, so the total price of this disinfection cabinet is higher than other disinfection cabinets. The disinfection time is about 20 minutes.

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