OPRHT70 A0310
3-7
Set up and Pre-use Preparation
11.  Perform the Circuit Check. If the circuit includes an end cap,
  retain it for use in the Circuit Check. See Section 5 for
  instructions.
For use with an HME (artificial nose):
See Figure 5:
1.  Attach a bacteria filter to the Gas Output connector on the HT70.
2.  Locate the 22 mm ID end of the breathing circuit. Attach this end
  to the bacteria filter.
3.  Attach the HME to the patient wye connector.
4.  Attach a pressure tee.
5.  Attach Flex Tube, if used, to the patient side of the pressure tee.
6.  Attach the Prox Inline Filter with tubing to the Prox. Line
  connector.
Figure 4