7
Vacuum pumps [machines]; Air suction machines; Vacuum cleaners; Dust exhausting installations for cleaning purposes; Vacuum cleaner hoses; Vacuum cleaner bags; Central vacuum cleaning installations; Filters being parts of machines or engines; Dust removing installations for cleaning purposes; Extracting machines; Vacuum cleaners; Suction machines for scavenging purposes; Suction turbines [other than for land vehicles]; Compressors and fans
9
Respirators for filtering air; Filters for respiratory masks
11
Air filtering installations; Filters for cleaning gases [parts of household or industrial installations]; Filters for exhaust extractors [parts of household or industrial installations]; Filters for air conditioning; Filters for cleaning air; Air purifying apparatus and machines; Apparatus for ventilating; Ventilating fans; Suction ventilators; Extractor units [ventilation]; Extraction columns [other than laboratory apparatus]; Cutting table extraction installations; Hoods incorporating extractor fans; Air filters for use as dust extractors in industrial processes; Flues and installations for conveying exhaust gases; Filters for industrial and household use; Heating, ventilating, and air conditioning and purification equipment (ambient); Industrial treatment installations; Filtering installations for capturing and separating dust and/or gases