Skip to content
Wild Fire Indoor Air Quality

FAQ: Helping to Protect Your Home from Wildfire Smoke with Your HVAC System

FAQ: Wildfires and Your HVAC System

Wildfire smoke can significantly decrease indoor air quality, leading to health issues and discomfort.

Yes, if you have an HRV or ERV , they can bring wildfire smoke into your home.

During periods of high wildfire smore, it may be beneficial to turn off your HVR/ERV.

If you have a high quality filter, such as a high-efficiency particulate air (HEPA) filter, and you do not have an HRV/ERV or if your HRV/ERV is deactivated, then running the HVAC system could help filter out some wildfire smoke particles.

High-efficiency particulate air (HEPA) filters are the most effective against wildfire smoke particles.

improve indoor quality water purification

Air Quality Upgrade: $500 Off Whole Home HEPA*

It is recommended to check/change your filters as recommended by the manufacturer.  If you experience periods of prolonged wildfire smoke you should check your filters more often.

Installing a whole home HEPA filter or buying a room HEPA filter can help.

Turn off your ERV/HRV to avoid bringing in outdoor air during a wildfire event.

It’s generally not recommended to shut off HVAC systems completely during a wildfire, however you should turn off your HRV/EVR if applicable.1

Yes, using air purifiers alongside the HVAC system could further improve indoor air quality during a wildfire event.

Turn off the HVAC system and Call on Reliance™ to inspect your system.

Want to learn more about the air in your home? Be sure to read our Ultimate Guide to Indoor Air Quality.


[1] //


Back to Learning Centre