$524.00

The Parabolic Resistor Ring is a set of 7 switch-selectable calibrated respiratory resistance orifices (Rp5-Rp500) integrated into a 4″ diameter ring.  A calibration certificate is available for standards testing.

Intended Use

Ventilator testing to ISO 10651 and ASTM F1100

Simulation, respiratory education

Change Resistances without Disconnecting Tubing

Precision Laser-Cut Orifices


Rp5, 10, 20, 50, 100, 200, 500

Individual Resistors Cannot Be Misplaced

Photos & Videos

Also Consider

  • ASL 5000™ Breathing Simulator for respiratory device research and development. Learn more.