What is the technical classification of air purification equipment?

1. Low-temperature asymmetric plasma. The low-temperature asymmetric plasma module forms an asymmetric plasma electric field through high-voltage, high-frequency pulse discharge, which causes a large amount of plasma in the air to collide step by step. It produces electrochemical reactions and rapidly degrades toxic and harmful gases, living viruses, bacteria, etc., thereby efficiently killing viruses, sterilizing, removing odors, eliminating smoke, and removing dust, and non-toxic and hazardous substances are produced. It is called the most advanced environmental and health science in the 21st century. High and new technology worth looking forward to. It can coexist with man and machine, purify at the same time without personnel leaving; energy saving and consumption reduction, 80% of electricity can be saved compared with the same period of the previous year; lifelong no disassembly and washing It has the ability to quickly eliminate viruses, super purification, effectively eliminate odors, eliminate static electricity, and increase oxygen content.
2. Chemical preparations. The main product is air freshener (car perfume). Its product is low in price, but it can only cover up some peculiar smells. In addition, complex chemical reactions occur under the action of sunlight, which become new pollution in the car, and it is impossible to eliminate harmful gases.
3. Chemical decomposition. The main working principle is the ionizer ozone generator. Ozone has a strong oxidizing power and is one of the strongest oxidants known. Ozone is the most widely used in sewage treatment, and its principle is to use the strong oxidizing property of ozone. After the ozone is decomposed, it is decomposed into oxygen. It is cheap, has more functions than fresheners, can increase the number of negative ions in the air and reduce the solid dust in the air, has a sterilization effect, but has little effect on decomposing harmful gases such as formaldehyde. The ozone generator produces a large amount of high-concentration ozone, which may kill human white blood cells while killing some viruses and bacteria, which may cause cancer. Negative ions are easy to adsorb dust and adhere to the ceiling of the inner wall of the car, causing the interior of the car to be particularly shallow. The colored car will gradually become gray-black.
4. Adsorption and volatilization. It is a purifier using Chinese herbal medicine as a medium. It is inexpensive and has a certain antibacterial function. However, Chinese herbal medicines basically cannot purify in a solid state. The purifier uses only a small amount of Chinese herbal medicines. After reaching saturation, it will not sterilize and easily become bacteria. The multiplication body, the replacement of the filter element involves the difficulty of harmless disposal.