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Msa premair firefly ii scba breathing apparatus
MSA PremAir FireFly II SCBA Breathing Apparatus
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MSA PremAir FireFly II SCBA Breathing Apparatus
The PremAire Respirator is a pressure-demand device, meaning it delivers respirable air to the user "on demand." As such, it maintains a slight positive pressure of air inside the facepiece - whether the wearer is inhaling or exhaling - to prevent contaminants from entering the facepiece, should any slight face-to-facepiece seal leakage occur.
Because the unit is a pressure-demand device, it can be used with a large, compressed air cylinder or a bank of cylinders set up in cascade fashion. For longer-duration air supplies, the respirator also can be used with a compressor that delivers respirable air to the user within the NIOSH-approved pressure range.
The so called PASS (Personal Alert Safety System) devices are motion sensors that send out loud audible alarms in case of unconsciousness or if the user is able to switch to alarm mode by him- or herself when in danger.
* 5 hours full alarm at 95 dB
* Manual switching of alarm possible
