Wildfire smoke contains fine particulate matter (PM2.5) that can harm respiratory health in humans and pets. Dogs are particularly vulnerable due to their outdoor activity and rapid breathing. Prolonged exposure can lead to respiratory irritation, coughing, and other health issues. Regions like Southern California and Texas are at higher risk due to seasonal weather patterns, while areas in the Northern Rockies may experience worsening drought conditions. Families must remain vigilant and prepared to protect their pets during smoke events.