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on the operation, appeared the following phenomenon: Bleeding, have exudates, pus, chamber dirty content. Need the Vacuum regulator to absorb the waste in the suction bottle.
| Gas | vacuum | 
| Gauge | 0-260mmHg for children 0-760mmHg for adult | 
| Valve material | stainless steel,aluminium | 
| Overflow safety trap capacity | 150cc,polycarbonate | 
| ON-OFF function | ON: Green button visible Excess flow protection:Effectively prevent back flow when liquid set full | 
| Advantages | a.Simple structure b.Convenient c.Just Need a small area d.Low noise. | 
| Use | Can use in bed head unit, pendant ect | 
