Blog Post #1440 – Improving Indoor Air Quality – Part 4

Article from the OH&S Canada magazine – (Fall – 2022)

Written by the Canadian Centre for Occupational Health and Safety (CCOHS)

“Maintaining Mechanical Ventilation Systems”

Properly designed and functioning HVAC systems keep indoor air circulating. Make sure that your ventilating systems are properly rated and configured for the layout of the space, type of activity, and maximum occupancy.

Schedule regular inspections and maintenance including filters and parts replacement to keep the system running effectively. Some systems are designed to adjust ventilation according to occupational level such as demand-control ventilation (DCV) or variable air volume (VAV). In work areas where there is no natural or mechanical ventilation, the use of portable air cleaners with High Efficiency Particulate Air (HEPA) filters are an option to help improve air quality.  It should be noted that they are not as effective as a properly functioning HVAC system.

Many factors can affect air quality to buildings, and poor indoor air quality can negatively impact employees. Ensuring that the air your workers breathe is clean and properly regulated is an important part of your workplace heath and safety plan.

This is the end of the 4-part series dealing with “Improving Indoor Air Quality”. The CCOHS is a great place to gather information dealing with occupational health and safety.

HRS Group Inc. has a great team that can help you with all your health and safety needs. Contact Deborah toll free at 1-877-907-7744 or locally at 705-749-1259.

We can also be reached at 

Ensure your workplace is a safe place.

Remember – In Canada, “ALL Accidents are Preventable”

‘Work’ and ‘Play’ safe.

Daniel L. Beal

CHSEP – Advanced Level
CEO & Senior Trainer
HRS Group Inc.


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