Excuse me, can ultraviolet or ozone sterilization achieve commercial sterility?

Ultraviolet or ozone sterilization can not completely sterilize, and there are often bacterial spores to survive, so food is not suitable for long-term storage at room temperature, even vacuum packaging can not inhibit the reproduction of anaerobic bacteria, it is recommended to refrigerate.

Then there is the type of food, different foods contain different types of bacteria, and the shelf life should be determined according to the food.

Ultraviolet vacuum, it should be fine. Ozone is not good.

Ozone has an effect on fragrance. Ultraviolet rays are better.

In addition, if it is a horticultural product, it is recommended to use carbon dioxide, which is economical and practical. The time is also long, be sure to pay attention to ethylene.

Those that are easily oxidized cannot be sterilized with ozone. For example, some plastic products.

After the lamp is lit, the indoor dirty air is gradually cleaned due to the action of ozone and ultraviolet rays, so the lamp is constantly the source of fresh air, and the free bacteria in the air are also killed when ozone is decomposed, which can prevent cold and flu and other air-borne infectious diseases, and prevent the spread of hepatitis and tuberculosis. It is suitable for disinfection and sterilization in public places, in the carriage of vehicles, and in the air conditioner.

It can kill bacteria in water, does not produce permanent residues, does not produce carcinogens, and has the advantages of no peculiar smell in water. After the ultraviolet ozone germicidal lamp is lit, special attention should be paid to the protection of people's eyes, and it is not suitable to irradiate the human body.

In addition, some items should not be disinfected with ultraviolet ozone germicidal lamp, therefore, ozone-free ultraviolet germicidal lamps can be used, Tianjin Ruisente ultraviolet equipment has used titanium-doped quartz glass, which can filter out the light that produces ozone 185 nm wavelength when the lamp is lit, so that the lamp does not produce or produces very little ozone.

Ultraviolet disinfection includes bacterial propagules, spores, mycobacteria, coronaviruses, fungi, rickettsial and chlamydia, and can be used to disinfect surfaces, water and air contaminated by these viruses.

Those that are easily oxidized cannot be sterilized with ozone. For example, some plastic products. UV rays are a little better.

Discoloration, oxidation, plastic, colored fabrics, basically need to be protected from light.

Ozone disinfection and sterilization is the best, not only fast, but also strong spectral sterilization ability, disinfection without dead ends, its effect can reach 15 times that of general ultraviolet disinfection, no secondary pollution, not only can disinfect the surface of the object, but also remove harmful gases such as formaldehyde, benzene, smoke and other harmful gases existing in the room.

Depending on the place of use and the object of disinfection, for large-area indoor surface sterilization, purple line is used to sterilize, and ozone sterilization is effective for food, and accumulations

Ozone is able to absorb ultraviolet rays and is the protection of living organisms from ultraviolet rays. The hole in our earth's ozone layer allows ultraviolet rays to penetrate the earth, which is the reason for the promotion of fluorine-free air conditioning.

Ozone mixed water contains ozone, which weakens the germicidal effect of ultraviolet rays. However, ozone itself has a germicidal function.

As for the disadvantage you asked, ozone absorbs ultraviolet rays and weakens the bactericidal effect of ultraviolet rays.