All posts in IAQ Case Studies

School Indoor Air Quality

School Indoor Air Quality

School Indoor Air Quality

Problem: A northern Alberta school was experiencing a strong periodic sewer-like gas smell that made students and staff sick. An investigation of the air handling unit found the humidification drain line to be dirty with a similar odour. When the unit ran, odorous air was drawn from the drain line into the air unit and caused the school odour.

Solution: Replacing the drain line eliminated the sewer-like gas smell.

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