EU Trademark Classification EU09 Scientific and electronic apparatus Respiratory mask filters Class 09 Respiratory mask filters 24166 呼吸面罩过滤器（医用除外） Chinese 呼吸面罩过滤器（医用除外） English Respiratory mask filters [non-medical] Site ref. 24166 Class 09 Included in Harmonised Database (HDB) Name qualifier non-medical