Is Your Air Conditioner Ready for Wildfire Smoke Season?

Wildfire season has become a regular part of summer in Central Alberta. Even when fires are hundreds of kilometres away, smoke can drift into our communities, reducing air quality and making it difficult to keep homes comfortable. 

During periods of heavy smoke, it’s usually best to keep the windows closed and rely on your AC system to filter the smoke particles from the air while cooling your home. However, AC air filter efficiency actually depends completely upon the type of AC system you use.  

Your Air Conditioner Doesn’t Remove Smoke 

Many homeowners assume that central air conditioning filters smoke from the air. While your AC circulates indoor air and removes heat and humidity, it isn’t designed to eliminate fine smoke particles on its own. 

Your furnace filter plays a much bigger role. Every time your air conditioner runs, air passes through your furnace before being cooled and redistributed throughout your home. A clean, properly selected filter helps capture airborne particles before they continue circulating. If your filter is overdue for replacement, smoke season is an excellent reminder to install a fresh one. 

Your HVAC System Works Best as a Team 

During smoky conditions, we recommend keeping windows and exterior doors closed as much as possible. This reduces the amount of outdoor air entering your home and allows your cooling system to maintain a more consistent indoor environment. 

Many homeowners also choose to operate the furnace fan periodically, even when the air conditioner isn’t actively cooling. This allows more air to pass through the filter, improving circulation throughout the house. 

If anyone in your household has asthma, allergies or other respiratory concerns, a portable HEPA air purifier can provide an additional layer of filtration in bedrooms or other frequently used spaces. 

Furnace Maintenance Helps Improve AC Air Filter System 

Smoke particles, dust and pollen can all affect HVAC performance over the course of the summer. A dirty filter restricts airflow, making it more difficult for your air conditioner to cool efficiently. Outdoor condenser coils should also remain free of leaves, grass clippings and other debris to ensure proper heat transfer. 

Routine maintenance helps your cooling system operate efficiently while maintaining healthy airflow throughout your home.  

Stay Comfortable This Summer 

Wildfire smoke is something we hope to avoid, but it’s becoming an increasingly common part of Alberta summers. Preparing your HVAC system now helps improve comfort while supporting better indoor air quality when smoke arrives. 

At RT Heating & Air Conditioning, we provide complete Red Deer air conditioning services, including maintenance, repairs and new system installations. If you’d like to prepare your home for the rest of the cooling season, we’re here to help.