In Canada, the maximum level of noise allowed for the workplace environment, if one were to work for 8 continuous hours is 87 dB. However, provincial and territorial jurisdictions can set their own noise exposure limits for 8 hours, such as Quebec at 90 dB and Ontario at 85 dB. When measuring sound in the workplace, there are 3 main instruments used – sound level meter, integrating sound level meter and a noise dosimeter.