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公开(公告)号:US11759743B2
公开(公告)日:2023-09-19
申请号:US17400600
申请日:2021-08-12
发明人: Jim Woods
CPC分类号: B01D46/46 , B01D46/0043 , B66B11/024 , B01D2273/30 , B01D2279/50
摘要: An elevator air filtration system having an elevator car, an outdoor intake HEPA air filtration system that creates HEPA filtered air at a desired temperature, humidity and quantity of filtered outdoor air, and a retractable hose system that delivers the HEPA filtered air to the elevator car.