What are the differences between the Original Breather (Blue or Pink), Breather Fit and Breather Voice?

What are the differences between the Original Breather (Blue or Pink), Breather Fit and Breather Voice?

The Breather (Blue and Pink) is lower in resistance.
Breather Fit and Breather Voice are higher in resistance.

Breather Fit and Voice are the same levels of resistance, just separated from the different resources provided on our website for each user.
Fit, resources regarding athletes.
Voice, resources regarding performers.

On this link, you can see the different device dial pressures: https://www.pnmedical.com/wp-content/uploads/2019/07/Breather-vs-Breather-Fit-Pressure-settings-2p-V3.pdf. 

The first page shows Breather pressures for impaired adults and healthy adults. The second page shows Breather Fit/Voice pressures. Great way to compare the difference in the models.