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PERATING
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NVIRONMENTS
6-4
www.zoll.com
906-0731-01-05 Rev. C
Rain and Snow
You should prevent exposing the unit to rain or snow. Use the optional padded case that can be
purchased with the ZOLL Ventilator to protect the 731 Series Ventilator from rain and snow.
The unit is capable of operating in these conditions if you keep the device in the padded case
and use the rain flap that is provided with the padded case. The padded case and rain flap
prevent rain and snow from puddling on any of the device’s surfaces. In cases of driving rain,
where water could possibly enter the unit’s compressor, you can use a bacterial/viral filter to
protect the compressor inlet.
Using the ZOLL Ventilator in Hazardous Environments
You can use the ZOLL Ventilator in environments where chemical and/or biological toxins are
present. To do this safely, all gas delivered to the patient comes from either a pressurized
medical-grade oxygen source and/or filtered ambient air entrained through the
Fresh Gas/Emergency Air Intake. You can chose between a bacterial/viral filter and a
chemical/biological filter based on the direction of the Medical Control Officer.
To prevent the patient from breathing contaminated ambient air in the event of a ventilator
failure, the unit contains an internal anti-asphyxia valve that allows the patient to inspire gas
through the external filter. While this design assures that no contaminated gas reaches the
patient, you are required to ensure that nothing blocks the input of the external filter.
Warning!
The Medical Control Officer and/or Incident Commander should determine which, if
any, external filter is used based on the potential hazard.
Warning!
You must ensure that nothing blocks the inlet of the external filter; failure to do so could
prevent the patient from breathing and cause an ventilator failure.
Hazardous Environment Filters
Fresh Gas/Emergency Air Intake
Bacterial/Viral Filter
Chemical/Biological Filter