The makers of Honeywell’s AirGenius Air Cleaner, judged 100 U.S. cities on airborne pollen levels, particulate air pollution and smoking regulations.

Breathe easy…Tucson is ranked 5th.

The full list can be accessed through the Honeywell AirGenius Facebook application.

Or scroll through the Top 10 on CNN.com.

The Lung Association’s annual air quality report grades cities and counties based, in part, on the color-coded Air Quality Index developed by the U.S. Environmental Protection Agency (EPA) to alert the public to daily unhealthy air conditions.

The 13th annual report uses the most recent, quality-controlled EPA data collected from 2008 through 2010 from official monitors for ozone and particle pollution, the two most widespread types of air pollution. Counties are graded for ozone, year-round particle pollution and short-term particle pollution levels. The report also uses EPA’s calculations for year-round particle levels.

For more information and to see how other communities rank, visit stateoftheair.org.