We measure the impact of air pollution on daily labor productivity in call centers in five Indian cities. A one standard deviation increase in PM2.5, a pollutant that has been widely studied in the literature, decreases intensive margin productivity by 0.15σ. The equivalent impacts for carbon monoxide and ozone, however, are 0.14σ and .09σ, respectively. Furthermore, carbon monoxide is responsible for more than half of the total productivity lost from pollution in our sample. We consider the potential productivity impacts of a national policy in India that targets PM2.5 alongside a counterfactual policy that targets a broader range of pollutants.