Outdoor workers DPHHS and DEQ said those experiencing homelessness or have restricted healthcare access may also increase vulnerability to wildfire smoke exposure. Respiratory symptoms caused by wildfire smoke exposure include: Dry cough Trouble breathing Those who are experiencing extreme symptoms such as trouble breathing or chest pain should get medical help immediately by calling 911 or calling the closest emergency center. DPHHS and DEQ said N95 masks help defend against wildfire smoke particulate matter; however, they must be worn correctly. Wearing filtering facepiece respirators may cause breathing difficulties for certain people, and should therefore, seek advice from healthcare provider before using.