Plasma air disinfection machine is a kind of equipment that uses plasma technology for disinfection and sterilization. Plasma technology is a technology that excites gas molecules to high energy levels through gas discharge. When gas molecules are excited to high energy levels, ionization and electron collision will occur, resulting in a large number of plasmas. These plasmas can contact with microorganisms in the air and destroy their structures, thus achieving the effect of disinfection and sterilization.

The sterilization principle of plasma sterilizer is based on plasma technology, which mainly includes the following aspects:

1. air ionization

The plasma sterilizer forms plasma by ionizing oxygen or nitrogen, thus ionizing oxygen molecules or nitrogen molecules into positive ions and negative ions. These plasmas spread rapidly in the air under the action of strong electric field, and at the same time contact with bacteria, viruses and other microorganisms in the air to destroy them.

2. Oxidation reaction?

The plasma produced by the plasma sterilizer will react with oxygen in the air to produce a large number of oxidants, such as O and O3. These oxidants can oxidize and destroy the membrane structure of microorganisms and protein and nucleic acid in cells, thus achieving the effect of disinfection and sterilization.

3. Photocatalytic reaction

The plasma sterilizer can also be disinfected by photocatalytic reaction. Electrons generated by plasma will combine with oxygen molecules on the surface of photocatalyst materials to form active oxygen species, such as hydroxyl radicals (? OH), superoxide radical (O2? -), and so on. These reactive oxygen species are highly oxidizing and can destroy the cell membrane and DNA of microorganisms, thus achieving the effect of disinfection and sterilization.

4. UV-assisted

Plasma sterilizers can also be disinfected with ultraviolet rays. Electrons generated by plasma interact with photons generated by ultraviolet rays to generate high-energy photons, thus enhancing the disinfection and sterilization effect of ultraviolet rays. At the same time, ultraviolet rays can also eliminate oxidants such as ozone produced by plasma and avoid harm to human body.

Application of plasma sterilizer

Plasma sterilizers can be widely used for air and surface disinfection in medical, food, beverage, pharmaceutical, electronic and cosmetic industries. For example, it can be used in hospitals to disinfect the air and surfaces in operating rooms, wards, ICU and other areas; Can be used for disinfection of kitchens, dining tables, tableware, etc. In the catering industry; Can be used for disinfection of workshops and equipment in pharmaceutical, electronics, cosmetics and other industries.