Transitioning from heat to A/C can reveal hidden air quality problems on the jobsite. This article breaks down the top five indoor air quality issues that often show up during seasonal HVAC switches — like moisture, odours, and poor ventilation — and explains how to fix them efficiently. Practical insights for crews working on retrofits, maintenance, or new builds.

As the weather warms up, buildings across sectors prepare to switch from heating to air conditioning. This transition can impact indoor air quality (IAQ), introducing allergens, dust, mould, and other contaminants into the environment. For property managers, building owners, and facility managers, preparing for this shift is essential to maintain a comfortable and healthy indoor environment. 

This article covers the Top 5 IAQ issues commonly encountered when switching from heat to A/C and provides solutions to address each one. Ensuring a smooth transition keeps occupants comfortable and safe while minimizing potential IAQ-related complaints. 

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