Haze weather has become increasingly common in recent years, especially in winter. Air pollution constantly affects our health, and air quality issues have attracted high attention from the whole society. With the increasing standard of living and the continuous improvement of health awareness, the Luftmy editor noticed that air quality monitoring and air purification products have received more and more attention. Notable are the ultimate smart experiences of air monitoring such as haze detectors, and purification products like air purifiers equipped with PM2.5 sensors and fresh air systems, making fresh air no longer a luxury.

Air purifiers are different from air conditioners. For ordinary consumers, it is difficult to establish an intuitive feeling of whether the air purifier product they purchased is effective; relevant monitoring data is needed to provide an impartial evaluation. Therefore, the Luftmy editor has learned that smoke and dust sensors and PM2.5 sensors are gradually attracting industry attention. Sensors are the only way to evaluate indoor air quality; they can perceive the concentration of harmful components in the air and serve as a more important bridge for establishing direct contact between air purifier products and users.

Driven by huge market demand, the domestic air purifier market is developing rapidly, with fierce competition between new and old brands. According to relevant statistics, in 2015, the average price of the ten products most concerned by consumers in China's air purifier market was 4,566, of which 7 models were priced higher than 3,000 yuan. The overall attention of consumers for products higher than 2,000 yuan reached 72.2%. It can be seen that the mid-to-high-end purifier market will remain the focus of various purifier manufacturers in the future.

In the domestic and foreign mid-to-high-end air purifier market, the application of dust identification sensors and PM2.5 sensors has been very extensive, being one of the essential sensors for smart air purifiers. With the rapid growth of the domestic air purifier market, dust sensor technology is also developing rapidly, especially laser dust sensors which have achieved fast progress.