News

News Products

Which air quality sensor to choose? LUFTMY sensor tells you

Update: 2019-09-26 16:53 Source: LUFTMY

Air quality sensors are often used to monitor pollutants in the air. They are an important part of air purifier and fresh air system. Although it is not recognized by ordinary consumers, it is very important for the whole industry. With the development and innovation of technology and the unremitting efforts of many domestic sensor enterprises, the application of air quality sensors has opened up a new situation. For example, Guangzhou LUFTMY Technology, founded in 2012, focuses on the development, production and sales of particulate matter sensors (PM sensors).

Application of Air Quality Sensor
Application of Air Quality Sensor

1. Air Quality Sensor for Particulate Matter Monitoring

(1)Particle Sensor

The comprehensive application of air purifier in China began with the outbreak of haze, and PM2.5 sensor was first recognized by the public.The early PM2.5 sensor was a simple infrared gas detector plus a level output, which showed the air condition with red, yellow and green lights.The national standard stipulates that when the PM2.5 concentration in the air is below 35 ug/m3, it is superior and green.

With the upgrading of sensor technology in China, the analog qualitative output of the sensor is transformed into quantitative output, which directly displays the concentration of PM2.5, realizes the digitization of air quality, and enables consumers to understand the air quality more intuitively, thus further promoting the healthy development of the purifier industry.

(2) Application and Development of Particle Sensors

It is well known that the smaller the particle size, the greater the damage to human body caused by the attached bacteria. PM2.5 can enter the blood vessel, and the harmful substances it attaches can cause canceration. Although PM10 does not directly enter our alveoli like PM2.5, it will cause damage to our throat, airway and so on. PM1.0 is more harmful.

At present, many European and American countries pay more attention to PM10 pollution. Korea has incorporated PM1.0, PM2.5 and PM10 monitoring into national standards. Consumption upgrading is also being carried out in China. Through monitoring more than 10 concentration parameters of PM1.0, PM2.5 and PM1 0, the further development of purifier industry is promoted. This has a higher requirement for air purifier. Firstly, the filter not only removes PM2.5, but also has the ability to deal with smaller particles. Secondly, the sensor needs not only multi-channel measurement, but also low noise, long life and high reliability.

LD16 laser PM2.5 sensor
LD16 laser PM2.5 sensor

2. Formaldehyde contamination by continuous injection

(1) The improvement of atmospheric environment of formaldehyde sensor makes many purifier enterprises begin to focus on formaldehyde treatment and monitoring data. Formaldehyde sensor has always been a problem of high price, short life, easy to be disturbed, and the demand awareness of enterprises of clean products is not obvious, so it has not been fully promoted.

(2) Application Trend of Formaldehyde Sensor

Formaldehyde sensors generally face such difficulties as short life, high cost, large gas cross-interference, and difficult to transport and store. At present, the lifetime of formaldehyde sensor is limited by material only about two years.

3. Invisible and lethal CO2

CO2 is ubiquitous in indoor air, but it is often overlooked. When the CO2 in indoor air reaches 1000 ppm, the human body will feel uncomfortable; when it reaches 2000 ppm, it belongs to slight hypoxia, which can make people feel asthma, headache and dizziness. When it reaches 5000 ppm, it belongs to the extreme environment of health. Human body function is seriously confused, which makes people lose consciousness and unconscious. Therefore, the harm of CO2 to human body should not be neglected.

4. Application Trends of Air Quality Sensors

At the same time, domestic enterprises are exploring more development paths to reach more life scenarios, such as gas monitoring in the automotive field. As a closed travel space, automobiles are also facing air pollution problems such as particles, formaldehyde and CO2 exceeding the standard, which threaten consumers'health.

Application fields of LUFTMY dust sensor: vacuum cleaner, sweeper, mite remover, intelligent garbage bin, intelligent detector, etc.

S7 Smart dust sensor
S7 Smart dust sensor

Smart Dust sensor S7 is installed in the ventilation ducts of vacuum cleaners, sweeper robots and other equipment based on the principle of optical pointing. It can accurately measure the number and concentration of Dust mites, Dust, hair fibers and other particles, and real-time display the cleanliness data of the ground, carpet, bed sheet, sofa and car.

For sensor enterprises, more innovative technologies need to be developed and studied, but the most important thing is to focus on the rigid needs of the market and customers. Guangzhou LUFTMY focuses on gas sensor technology, algorithm research and application. In the measurement accuracy, stability, consistency error, anti-interference and other performance indicators are in the leading position in the same industry.

TAGair quality sensor Particle Sensor Unit PM2.5 Dust Sensor particulate matter sensor formaldehyde sensor