Air purifier and particulate matter concentration detection method

Abstract

The invention discloses an air purifier and a particulate matter concentration detection method. The air purifier and the particulate matter concentration detection method are used for detecting the concentration of particulate matter in air purified through a purification device. The air purifier comprises the purification device, a first detection device and a processor. The purification device is used for purifying air within a preset range around the purification device. The first detection device is away from the purification device for a first preset distance and can obtain the particulate matter concentration formed before purification conducted through the purification device. The processor is used for calculating the post-purification particulate matter concentration corresponding to the pre-purification particulate matter concentration formed in the real-time state according to the pre-purification particulate matter concentration which is formed in the real-time state and obtained through the first detection device and the prestored relationship between the pre-purification concentration and the post-purification concentration. The prestored relationship between the pre-purification concentration and the post-purification concentration is obtained through the particulate matter concentration which is obtained in advance and formed before purification conducted through the purification device and the post-purification particulate matter concentration corresponding to the pre-purification particulate matter concentration.

Description

technical field [0001] The invention belongs to the technical field of air purification, and in particular relates to an air purifier and a particle concentration detection method. Background technique [0002] Haze is a state of air pollution, and it is a general expression of the excessive content of various suspended particulate matter in the atmosphere, especially PM2.5 (particles with a particle size of less than 2.5 microns) is considered to be the "culprit" of haze weather. After PM2.5 is inhaled into the human body, it will enter the bronchi and lung cavities, interfere with the gas exchange in the lungs, and cause diseases including asthma, bronchitis, and cardiovascular and cerebrovascular diseases. These fine particles can also enter the blood through the bronchi and alveoli, among which Soluble substances, harmful gases, heavy metals, etc. dissolve in the blood, which is more harmful to human health. [0003] Severe and above-level air pollution occurs frequentl...

AI Technical Summary

Problems solved by technology

Generally, wearable particle purification devices can only purify the air, but cannot detect the concentration of particles in the air purified by the particle purification device, that is, there is no way to know the concentration of particles in the air inhaled by the human body

If the particle detection device is directly installed at the clean air outlet of the particle purification device, and the particle concentration of the clean air is detected in real time, the detection result will be affected by the moisture in the user's exhalation, the high voltage of the negative ion output terminal and the interference of the magnetic field

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