If you're worried, take a pack of respiratory masks, available at pharmacies.
Times, Sunday Times (2013)
Food, emergency tents, and medicine were on the way to the scene, officials said, including more than 17,000 respiratory masks.
Chicago Sun-Times (2010)
The 800 workers on site would have to wear protective clothing and respiratory masks to protect themselves from the radioactive dust around the 30km-radius contamination zone.
Times, Sunday Times (2006)