— By Randolph Bush — Thanks to commercial-grade air purifiers, smoke-free air entices customers to linger longer and order more from the menu. For restaurants, too much accumulated indoor tobacco and food prep smoke and odor can become a serious problem that drives away customers and creates an unhealthy environment for employees. Even when smoking is designated to certain sections of a restaurant, the smoke can drift to common areas — creating an uncomfortable environment for all. Patrons who are sensitive to smoke or concerned about their …
