[header] How to protect yourself from air pollution [title] Research your city's air pollution levels. [step] You can use the environmental protection agency's (epa) airnow.gov website or the american lung association tools at stateoftheair. Org to find how high air pollution levels are in your town. Click on " city rankings " and " compare your air " tabs at the top of the page. 
[title] Download the " state of the air " app onto your smartphone or other devices. [step] It will help you check air quality levels on a day-to-day basis.