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  • Demesa, Inc.
    Demesa, Inc.
    (905) 842-6985
    15-6400 Millcreek Drive Unit 362, L5N 3E7  Mississauga

    of portable and permanent gas detection instruments, photo-ionization detectors, industrial hygiene equipment, air sampling equipment, landfill monitors, water quality monitors, calibration gases and accessories.

  • OSB Services
    OSB Services
    905.677.0022
    2759 Thamesgate Dr, L4T 1G5  Mississauga

    OSB Services began air quality testing in 1993 and OSB Lab followed in 1995 specializing in analysis of volatile organic compounds (VOCs). The OSB team includes chemists, environmental scientists, air quality consultants, industrial hygiene and building science professionals. OSB offers comprehensi…