According to research by relevant experts, a simulated natural environment has a certain effect on improving sleep quality. For example, the sound of rain or listening to natural water sounds and birdsong can make people feel relaxed and easy to fall asleep. Air purifiers can not only purify various pollutants in indoor air, including PM2.5 and formaldehyde, but can also simulate a natural environment to a certain extent, such as by purifying indoor air and releasing negative ions, promoting natural coordination between people and their living spaces.

Commonly used PM2.5 sensors in air purifiers include laser-based PM2.5 sensors. The Guangzhou Luftmy LD16 laser PM2.5 dust sensor utilizes laser Mie scattering theory to detect dust particulate matter in the air with high consistency and stability. It features serial port and PWM output, capable of detecting dust particles with a resolution diameter from 0.1μm to 10μm.

Application fields of laser PM2.5 sensors: air purifiers, air conditioners with purification functions, PM2.5 detectors, range hoods, smoke alarms, fresh air systems, dedicated PM2.5 sensors, air detectors, wearable devices, etc.

In a person's life, sleep time accounts for one-third. High-quality sleep allows our brain and body to rest, helping to eliminate fatigue, stabilize emotions, and restore physical strength. However, with the acceleration of the pace of life, insomnia has become a concern for more and more people. In fact, using an air purifier configured with a PM2.5 sensor can improve sleep quality to a certain extent.

Similarly, common PM2.5 sensors in air purifiers also include infrared-based PM2.5 sensors. The Luftmy HPD05 infrared PM2.5 sensor module uses the optical scattering principle to detect the concentration of dust in the air. The sensor has a built-in infrared light-emitting diode and a high-sensitivity photoelectric receiver. it can directly output PWM signals or output dust concentration values through IIC serial signals. This infrared sensor is suitable for air purifiers, air conditioners with purification functions, fresh air systems, and air quality testing instruments.