A measurement on chemicals emitted from computers and printers using test chamber method

SUMMARY The printers emit the chemical compound when its temperature rises during normal operations. And it primarily influenced the chemical concentrations such as formaldehyde and VOCs (Volatile Organic Compounds) in a living space. The measurements on the various types of prints from different manufacturers such as laser jet type, inkjet type were performed in emission test chambers of 1m3 and 5m3 with ventilation rate of 1.0 ACH(air change rate) supplying low-polluting clean air. During the test, chemicals emitted per PCs or Printers were analyzed on the two modes of stand-by and operation at 25°C and 50% RH. It is found that PCs and printers are a significant source of chemical emissions in small indoor environments, even with adequate ventilation. The chemicals may affect a potential health hazard for computer users.