EU Trademark Classification EU11 Lighting, heating and air conditioning 工业空气净化器（29738） Class 11 Industrial air purifiers 29738 工业空气净化器 Chinese 工业空气净化器 English Industrial air purifiers Site ref. 29738 Class 11 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)