Manometer: Know your breathing performance with this device, it tells your improvement after a period of persistent practicing. Please switch both to "T" when you need to know the max expiratory pressure (MEP).
Increase Lung Capacity and Tone Your Abs: Practice 5-10 minutes each time, and repeat 2-3 times a day. It will increase your lung capacity and performance by strengthening your respiratory muscles and abs.
5 Adjustable Resistance: The higher the level setting, the higher the resistance. We recommend starting exercising at level 1 and gradually increasing the level.
Test Level "T": Set both at "T" to make the trainer in a sealed environment, and then blow out hardly to get your MEP.
Portable device packed with a protective case and several accessories to make your training more efficien
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