Development of Smart Air Purifier for Reducing Indoor Particulate Matter

Abstract

Indoor air quality is crucial to observe because most people spend 90% of their time in the room. Indoor air quality is influenced by various parameters, especially PM 2,5, from a mixture of air outside and inside the room itself. If the occupants are exposed to this parameter continuously, it will affect the occupant’s health significantly. Hence, it is necessary to control indoor air quality if this parameter exceeds the specified quality standards. One technology to reduce PM 2,5 is an air purifier. Air purifiers are generally composed of an exhaust fan, HEPA filter, and pre-filter. One of the air purifiers’ evolution is the smart-air-purifier. Smart-air-purifier can automatically adjust the speeds of the fan so as can minimizes electricity costs. The designed smart system can classify PM 2,5 concentration based on fuzzy logic to flow rate settings using pulse width modulation (PWM). In addition, to analyze the performance of the smart air purifier, we test it in a chamber. The test results show the performance of the smart air purifier in reducing PM 2,5, the clean air delivery rate measurement of the smart air purifier, and its power consumption which can minimize 67.42% of electricity use than commercial air purifiers.