The fresh air came after days of acrid smoke from wildfires, but officials warned that conditions could rapidly worsen again.
Wear a tight-fitting N95 mask at the bare minimum, but a P100 is better, experts say. Wear long sleeves, eye protection, closed-toed shoes and cut-resistant gloves. Clean or decontaminate anything ...
The infernal blazes burning in Southern California are raising concerns about the potential airborne hazards they may be ...