Description
The AFT24 head support is useful when breathing directly into the AFT21 non-rebreathing T-valve for exercise physiology measurements. The AFT24 head support secures the T-valve directly in front of the subject and minimizes the strain associated with the weight of valves and tubing.
Pictured with AFT21, AFT9, and AFT7 (all not included).

Couplers 