Covidien Newport HT70, Operator'S Manual

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Reusable Breathing Circuits and Exhalation Valves
Operator's Manual 8-3
Figure 8-1. Air/Oxygen Entrainment Mixer
Check the mixer intake filter at setup and at least weekly. Replace when dirty.

WARNING:
Always use a mixer intake filter in the mixer to protect the internal mechanisms from contaminants
and preserve the lifespan of your mixer.

WARNING:
Never reverse the mixer filter.

Caution:
Do not wash or sterilize the mixer filter.
8.4
Reusable Breathing Circuits and Exhalation Valves
The Newport HT70 Ventilator may be used with a standard single-limb or “J” style breathing circuit
with a quality exhalation valve. Reusable breathing circuits and exhalation valves are generally
provided in clean, but not sterile, condition. Follow the manufacturer’s instructions to clean and
disinfect prior to use.

WARNING:
Do not use electrically conductive breathing circuits. Always use clean and dry breathing circuits.
1 Oxygen mixer 3 Cover
2 Filter