激光打印机PM2.5释放量的实验研究

PM2.5 Emission from Laser Printers in an Environmental Chamber

打印机是办公建筑室内PM2．5的主要来源之一，本文在30m3的测试舱内模拟激光打印机的实际使用过程。首先对测试舱的密闭性和均匀性进行了验证，随后对打印机在待机状态和运行状态下的PM2．5释放量分别进行实验。待机状态下A打印机PM2．5的释放量为3．0-4．0μg／h，B打印机在6．0-7．5μg／h范围内，运行状态下A打印机的PM2．5释放量为0．30-2．35μg／页，B打印机为1．60-1．80μg／页。测试结果表明，打印机对室内PM2．5浓度有一定的贡献，而且不同性能打印机PM2．5的释放量有较大不同。

Printer is one of the main PM2.5 sources for office building. An environmental chamber was used to characterize the emission rate of PM2.5 from laser printers. First, the tightness and uniformity of environmental chamber were investigated. The concentration of PM2.5 was measured when laser printer was in the state of idle and operation respectively. When in the state of idle, the PM2.5 emission form A printer was 3.0--4.01.1 g/h and B printer 6.0-7.5μg /h; and when in the state of operation, the PM2.5 emission form A printer was 0.30-0.35μg/copy and B printer 1.60-1.80μg/copy. Results showed that laser printers could be a relevant source of PM2.5 in office rooms and the emission of different printers was also different.