EU Trademark Classification EU11 Lighting, heating and air conditioning Clean air booths (Air purification apparatus for -) Class 11 Clean air booths (Air purification apparatus for -) 28604 洁净空气室用空气净化设备 Chinese 洁净空气室用空气净化设备 English Clean air booths (Air purification apparatus for -) Site ref. 28604 Class 11 Included in Harmonised Database (HDB)