Description:

The Positive Expiratory Pressure Device is a type of physiotherapy that consists of a one-way valve that measures the pressure of the exhalation. This could be used as a possible solution for testing the NED as one of the criteria is to measure exhalation pressure.

Pros and Cons:

Pros:

This device would be able to create the pressure build-up in the sinus region similar to what the NED is trying to accomplish.

Cons:

This device is similar in function to the NED and would therefore not be able to measure baseline values.