Air cleaning units; Air filters for industrial installations; Air purification units; Air purifiers; Air purifying apparatus and machines; Air exchangers for cleaning and purifying air; Air filter machines and purifying units for use in hospitals, laboratories, research facilities and food processing facilities

dental equipment, namely, equipment for collecting particulates dispersed in the air of a dental operatory, specifically, a vacuum system for capturing airborne dust, moisture, and air gases

gasoline hoses made primarily of rubbery material