Investigation on the correlation between emitting particulate matters from laser printers and air humidity

Indoor air quality is one of the most important issues. Nowadays, people spend more than 80% of their time in indoor environments, so the quality of air can have influential effects on people`s health. Many pollution sources are known so far. One of the important is electronic devices and printers. Particulate matters are one of the pollutant groups that are emitted from these devices. Generally, there are some effective parameters on emitting, such as temperature of fusing, kind of printers and humidity of air. In this research, we focused on the effect of air humidity on the particulate emission. Real room and chamber measurement are two types to measure the amount of pollutants. ISO 16000 is the acceptable standard for designing in the chamber. Particle size analyzer is used to detect and count the particulate matters