https://tinyurl.com/mr25zy3t
DIY自製空氣清淨屋
https://sites.google.com/nsysu.kksh.kh.edu.tw/air-pollution-pm25-monitoring/diy%E8%87%AA%E8%A3%BD%E7%A9%BA%E6%B0%A3%E6%B8%85%E6%B7%A8%E5%B1%8B
短網址 https://tinyurl.com/mr25zy3t
