Going inside the house will limit exposure but does not eliminate the risks associated with breathing in PM 2.5. Wearing a certified mask can filter out fine particles in the smoke from wildfires but don't forget a DIY mask or a surgical mask will not protect you these do not have effective filters for capturing the harmful micro-particles.

The material and technology used in making a Cambridge Mask make it effective for filtering PM 2.5. We have utilized the latest technology, in order to create masks that protect wearers from PM2.5, as well preventing you from breathing in other harmful pollutants, such as PM 10 and PM 0.3.

Don't count on a dust mask: Ordinary dust masks, designed to filter out large particles, and cloth facial coverings will not help. They still allow the more dangerous smaller particles to pass through. Special, more expensive dust masks with an N-95 level filter will filter out the damaging fine particles, but may not fit properly and are difficult for people with lung disease to use.