Carbon monoxide detectors; Carbon dioxide detectors; Electronic carbon dioxide monitors, other than for medical purposes; Apparatus for testing carbon monoxide detectors using an aerosol spray; Safety sensors, namely, carbon monoxide detectors, smoke detectors, and combination carbon monoxide and smoke detectors; Gas detectors for detecting the presence of gas; Gas leak detectors; Fire blankets and fire extinguishers; Smoke detectors; Fire and smoke detectors; Clothing for protection against ...