In recent decades, the number and severity of wildfires across Canada has increased due to climate change and a more wildfire-prone landscape.

While wildfires can wreak havoc in their immediate area, wildfire smoke can travel thousands of kilometres, putting millions more people at risk from the adverse impacts.

Research on wildfire smoke and health shows that smoke is more than just an irritant. It is increasingly clear that older adults, pregnant people and young children face higher risks to their health, including premature birth, hospitalization and premature death.

One way to reduce smoke exposure is to stay indoors and create a “clean air shelter” by closing the doors, windows and using an air cleaner to remove smoke and other particles from the air.

However, that is easier said than done for many people. While effective, store-bought air cleaners can be expensive and require pricey replacement filters.

In addition, many homes don’t have air conditioners and easily........

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