Positive Expiratory Pressure 

Just a side comment, a nose clip will help immensely, since the pressure will bleed off through the sinuses at higher resistances, making treatment problematic without one :)

haha that was funny at the end when she was bout to make another blow but then she took the device!

Thank You

please make a video on how to use QUAKE device also it will be helpful

🙏👍