Power Efficient Air Purifier Employing PM2.5 Air Dust Monitor Employing Embedded Module

Abstract

As air pollution is on the rise, providing cleaner air inside building is becoming an increasing demand. In this project, a PM 2.5 Air Dust sensor is employed to measure the concentration of minuscule dust particles in the air. The measured value is given as an input to the embedded module. The embedded module based on the magnitude of the measured value gives the control signal to the blower fan motor of the air purifier in terms of how fast it should rotate. This is a power efficient way to purify the air. When the concentration of dust is low, there is no need for the blower fan of the air purifier to be fast and send a high volume of air to be purified.