Industry on Parade Compilation #30. Educational film concerning measures taken in various industries to maintain air quality inside manufacturing plants. Title shot "No Smoking, Please." Exterior shot of Shearing Corporation pharmaceuticals plant in New Jersey; to men approach and go in. CU of air filtration system air intakes. Man walking among large devices, inspecting them casually. Person in sterile gown, repirater and hair covering seen through a window; holding cloth through opening in wall, showing air direction. Shot of woman, seated, involved in some sorting process with a machine still inside the Shearing plant. Shot of several people, seated, wearing hair covers, working on a small assembly line. Exterior shot of large air-purification device at another plant. Sign: "Do Not Enter Without Glasses or Goggles While Mixer is Operating." Scene of two workers emptying large bags of dusty material into a device, both wearing respirators and gowned. Scene of masked and gowned man apparently testing the air quality in a work area as two men work nearby. Worker shown filling and sealing bags that are filled behind a clear protective screen.