fire fighting smoke blower

1. It is normally used for ventilation (work at low speed). But for smoke-extracting when it is to protect fire (work at high speed). 2. The dual-function fan has two ways in installing: Horizontal and vertical. 3. It''s widely used for fire-protection expiration and ventilation of high-building, underground garage, and tunnel. 4. Model: I/II/III/series total 46 models. 5. Air volume: 3410-93800m3/h. 6...Total pressure: 155-1000Pa.

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