Children are particularly vulnerable to wildfire smoke. Low cost tools for assessing particulate matter exposure are available, but understanding their limitations is critical. Improving indoor air quality is key to decreasing exposure, and there are known health benefits to improving indoor air quality. The use of masks or respirators may also provide some protection from smoke. This webinar will review data on low-cost tools, indoor air quality interventions, and mask and respirator use for protecting children from wildfire smoke exposure.