Photocopiers are a source of potentially deadly ozone if the filter isn’t periodically changed, and even small amounts can cause chest pain and irritation. Laser printers do too, along with toner particles that can get in your lungs and blood stream, which could lead to lung disease and other ailments.。
如果复印机的过滤器没有定期更换的话，那么它就会产生潜在的致命臭氧，这些有害物质即使数量很少，也会造成胸痛和发炎。打印机中的增色颗粒会进入到肺和血液里，从而引起肺病和其他疾病。