Office Environment-Ozone and Photocopiers

    Ozone does not build up in the air. It breaks down into oxygen quickly after it released into the air.

    Photocopiers and laser printers produce ozone gas during operation. Concentration of ozone produce by that machine should, at any time not exceed 0.1 ppm.

    At concentration above 0.1 ppm, ozone can cause eye and upper respiratory tract irritation, headache and temporary loss of the ability to smell.

    Normally the modern photocopiers and laser printers fitted with an ozone filter do not present any hazard to health, provided they are properly maintained.

    It is recommended that photocopiers are not placed on or in close proximity to the personal workstations of office workers because of possible discomfort from the heat, light and noise generated during the photocopying process.

    Always put the cover down when using a photocopier. The fluorescent, metal halide, or quartz exposure lamps used in photocopiers can irritate the eye if viewed directly.

    Dust from the toners (containing carbon black) should be less than 3.5 mg per cubic metre of air. It is possible, however, if toner dust is breathed in directly, that it could irritate the respiratory tract.

    To keep ozone and dust containing carbon black levels well below acceptable limits;

     Have photocopiers regularly serviced,

     Ensure that an ozone filter is fitted to photocopiers and laser printers,

     Ensure that there is adequate ventilation.

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