Development of a Smart, High Efficiency and Energy Saving PM2.5 Sensing and Purifying System for Indoor Air Cleaning

PM2.5 (particle diameter <2.5 microns) impact on health has become a public concern nowadays. It is also the medium for airborne virus and bacteria that are causes of infectious diseases such as SARS etc. Current air pollution situation in China, especially urban areas, is so serious that indoor air purification is in surging demand. However, existing purifiers in the market are dominated by filtration based technologies which perform poorly for small size (<300nm) viruses and lung-penetrating toxic small particles. There is a huge need in the residence, commercial and hospital building indoor air quality market for more efficient, reliable and energy saving technologies. It is anticipated that such demand will surely further increase due to stricter regulations currently being implemented by the governments. The proposed R&D project will develop a prototype of smart PM2.5 sensing and purification system, built upon previous upstream research outcomes, featured with cost-effective and wireless indoor PM2.5 sensor, high efficiency and new technology of PM purifier with >95% of PM2.5 removal efficiency, and a smart integration system that utilizes mobile app for household, commercial building indoor air quality monitoring and automatic purifier condition control to realize a energy saving and high efficient air purification system.