T-valves

AFT21
Part #: AFT21, AFT22, AFT23

These T-Valves are suitable for exercise physiology, pulmonary function, and even MRI applications.

  • AFT21 35 mm OD: high performance, very low dead space, low air flow resistance valve; suitable for high air flow applications. Ships with AFT11D coupler and incorporates a gas sampling port (female Luer) for interfacing with the AFT20 gas sampling kit.
    35 mm OD non-breathing valve
  • AFT22 22 mm OD: low dead space valve; suitable for low to medium air flow applications. Incorporates a gas sampling port (male Luer) for interfacing with the AFT20 gas sampling kit and includes AFT11C 22 mm OD coupler.
  • AFT23 35 mm OD: low-cost, disposable non-rebreathing T-valve for one-way pulmonary function measurements, expiratory only. Ships with 8 extra valves. Fits AFT13 pulmonary function filter & mouthpiece set.
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For breathing directly into the valve:

  • AFT21—use the AFT9 mouthpiece, AFT3 noseclip and (optionally) the AFT24 head support.
  • AFT22—use the AFT2 mouthpiece (via included AFT11C coupler) with the AFT3 noseclip, or use the AFT10 facemask.
  • paper mouthpiece included

MRI Use: MR Safe (see Specifications for components)

Airflow and Gas Analysis

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