What is the difference between the fresh air system and the air purifier.light bulb humidifier

　　At present, air purifiers and fresh air systems have become one of the additional purchases of many families. When people consider buying an air purifier or fresh air system, they want to purify indoor air. Indoor air pollutants are mainly suspended particulate matter such as PM2.5, volatile organic pollutants and bacteria.

　　At present, the mainstream air purifier filtering technology on the market is mechanical and static electricity. The mechanical type is passive adsorption and filter. The indoor air is inhaled into the air purifier through the exhaust fan, and then the particle material and volatile organic matter are filtered by the filter inside the machine. Static electrical use of high -voltage electrostatic fields to form electric halo. Freedom electrons and particles collide with dust particles, so that the particles are charged and adsorbed by the filter under the action of electric field power.

　　Common filters mainly include HEPA filters and activated carbon filters. The HEPA filter is made of multiple parts of glass fiber, which can effectively capture particles in the air and effectively filter out the inhaled particles, smoke, bacteria, etc. Essence The activated carbon filter uses the unique pore structure and wide -hole diameter distribution of activated carbon to absorb organic pollutants in the air.

　　In addition, some air purifiers use silver ions purification, negative ion purification, washing air, light catalyst and other technologies to make the air purifier market prosperous.

　　How does fresh air system work? The fresh air system is an independent air treatment system, which consists of air supply system and exhaust system. Its basic principles and functions are to eliminate indoor turbidity while introducing outdoor air to achieve the effect of windless ventilation. If the fresh air system is equipped with electrostatic dust collectors or filters, it has the function of air purification. In addition, the fresh air system has a heat exchange function by installing the heat exchanger.

　　Careful friends can easily find the role of air purifier is to clean the existing air in the room, and the fresh air system realizes indoor and outdoor air circulation through exhaust and gas supply pipelines. Essence Whether it is a fresh air system or an air purifier, the filter is used for cleaning the air, and the filter needs to be replaced regularly. If the replacement is not timely, the risk of secondary pollution will occur.

　　Therefore, if we only start from the principle of air purification, the air purifier and the fresh air system are the same. HEPA filter, activated carbon filter, static dust removal, silver ions purification, and negative ion purification are based on the following principles: First, the principle of adsorption of inertia collision, and the direction of the air flow movement changes. After chemical treatment, the polluting particles moved along the line along the line under inertia and were absorbed by the filter material. Secondly, the diffusion adsorption is performed by using the Brown MovementA adsorption, reaches the surface of the fiber from the airflow, is directly absorbed by the fiber under the influence of static electricity factors. Third, it has a good effect on filtering. The smaller the aperture, the higher the adsorption efficiency, and the higher the particle removal rate.

　　Since the air purification technology used by the fresh air system and the air purifier is the same, can the two be fully replaced by each other?

　　The existing air in the room purifies the air purifier, when the air purifier is opened for a long time, it makes people feel sad. At this time, windows ventilation can make outdoor air pollutants enter the room unobstructed, which is obviously uncomfortable. The fresh air system can achieve indoor and outdoor air circulation without opening the window, thereby reducing frustration. Although some fresh air systems have the function of purifying the air, in the case of extremely serious air pollution, the filtering ability of the fresh air system is insufficient, and the air entering the room is still not clean enough. If the filtering capacity of the fresh air system is enhanced, the air volume entering the room may decrease, the air pressure difference between the indoor and outdoor areas may occur, and the outdoor pollution air will enter the room door and window through the gap.

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