In most offices, there's a unique aroma that comes from the copy machine. What your smelling is ozone, and it's really bad for you.
The EPA warns us that even inhaling small amounts can lead to chest pain, coughing, shortness of breath and throat irritation. The good news is that photocopiers are built with a filter to deal with the ozone it produces. The bad news, it's not always changed as often as it should be.
Even laser printers pose a problem. Most of them release tiny particles of toner that can get into our lungs and even our blood stream. Excessive exposure to toner dust from printers and copiers can increase your risk of a lung disease commonly found in coal miners. If your copy machine is not located in a well ventilated area, don't spend a lot of time in there.
Source: Aerias Air Quality Sciences
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