Daniela Gonzalez, 6, of San Leandro, Calif., practices using her spacer and inhaler to treat her asthma on the Breath Mobile Thursday, Sept. 20, 2012 at
Daniela Gonzalez, 6, of San Leandro, Calif., practices using her spacer and inhaler to treat her asthma on the Breath Mobile Thursday, Sept. 20, 2012 at Woodrow Wilson Elementary School in San Leandro. (Alison Yin/For Bay Area News Group) ( Alison Yin )