Specially designed to meet the needs of today's physiology teachers.

Significantly reduces how often you will need to sterilize your spirometer's flow head.

Helps eliminate the spreading of contagious material between students.

For use with Spirometer (S16251ND).

For use with Vernier Spirometer.

Make human respiratory measurements at rest and during moderate activity.

Accurately measures lung volume

Used with the Gas Pressure Sensor to measure human respiration rates.