PM2.5 fine particles have a small diameter and remain suspended in the atmosphere for a long time. They can spread and diffuse over long distances and usually contain a large amount of toxic and harmful substances, which significantly impacts human health. When PM2.5 exceeds standard levels, for every increase of 10 micrograms per cubic meter, the emergency visit and mortality rates of the hospital cardiovascular system will increase by 6% to 7%, and hypertension emergency departments will increase by 5%. When hazy weather occurs frequently, PM2.5 air pollution and dust have become issues that people cannot ignore, and with traffic congestion and the increase in car ownership, the degree of air pollution is also deepening.

To ensure good indoor air quality, air conditioners and purifiers equipped with air quality detection sensors have become the first choice for most people to purify the air. Current air conditioners are equipped with PM2.5 sensors and have filtering and dust removal functions, which can improve indoor air quality to a greater extent. The working principle of the PM2.5 dust sensor in air conditioners lies in the silver ion electrostatic precipitator of the air conditioner. When the dust content in the air is too high, the silver ion electrostatic precipitator starts automatically, adsorbing dust onto the collection plates and filters through high-voltage electrostatic technology.

Nowadays, many PM2.5 dust sensors can simultaneously monitor both PM2.5 and PM10 particles and monitor the dust concentration in indoor and outdoor air in real-time. After adding PM2.5 dust sensors to air conditioners, the units can update indoor air based on the monitored dust data. In addition, fan intake can be controlled based on this data to meet energy-saving and environmental protection requirements. Therefore, adding PM2.5 dust sensors to air conditioners to keep people away from dust pollution will become a new trend and a new development direction for the air conditioning industry. In view of this situation, Luftmy editor recommends the PM2.5 sensor LD12 commonly used in air conditioners.

Luftmy Laser Particulate Matter Sensor PM2.5 Sensor LD12 Overview:

The TF-LP01 laser particulate matter sensor is a small module that uses the scattering principle to detect dust particles in the air. It has the advantages of small size, high detection accuracy, good repeatability, good consistency, real-time response for continuous sampling, strong anti-interference ability, ultra-quiet fan, and 100% detection and calibration of sensors before leaving the factory. It features high detection accuracy, short response time, and product miniaturization.

PM2.5 Sensor LD12 Parameters:

Detection principle: Mie spherical scattering principle

Dust sensor detection particle size range: 0.1~10μm

PM2.5 output consistency: >100μg/m³ Maximum allowed error ±8%, <100μg/m³ Maximum allowed error ±10μg/m³

Dust sensor working conditions: -10~70°C, 0~95% RH

Storage conditions: -40~80°C, 0~95% RH (non-condensing)

Dust sensor working voltage: DC 5.0V±5%

Dust sensor working current: <80mA

Standby current: <0.5mA

Output signal: UART, PWM

Dust sensor dimensions: W42*H35*D23.2 (mm)

At the same time, the Luftmy editor also recommends the smart micro-dust sensor which can accurately detect the number and concentration data of particles in the ventilation ducts of equipment such as vacuum cleaner handles or extension poles, sweeping robots, range hoods, and particle detection instruments. This is the S7-L Smart Dust sensor using the optical transmission principle.

1. The vacuum cleaning effect of the device and the cleanliness of floors, carpets, bed sheets, etc., are intuitively presented to the user through sensor output data and LED color display;

2. The device intelligently controls the motor speed based on sensor data, achieving quietness, energy saving, and extending motor life;