Air pollution mainly comes from haze, dust particles, smoke, automobile exhaust, second-hand smoke, soot, and so on. Indoor air pollutants are mainly from decoration, because the widely-used decorative materials, plates, paint, glue, new furniture, adhesives, etc., easily produce harmful pollutants to human health. Indoor air quality monitors can detect the dust particles PM2.5 in the air, and also detect the formaldehyde and TVOC produced by decoration. Air pollution is very harmful to the human body, so a reliable air quality monitor can help you detect the air pollution index at home, and offer comprehensive protection to pregnant women, children, the elderly, and family members. Maintaining an air quality monitor is crucial to ensure accurate and reliable measurements. Here are some general guidelines to help you maintain an air quality monitor.