KITCHENASSIST KA-1 2PCS Portable Muscle Trainer Exercise Device with Adjustable Resistance, Enhance Strength Training & Breathing Capacity, White and Black, Silicone + ABS

The strength of my diaphragm became immediately apparent when breathing through this apparatus for the first time, having to adjust it to the lowest setting. I breathed through it for about 5 minutes a day for a few days a week and saw slow but noticeable progress, eventually being able to increase the resistance a tad bit.The design is comfortable and easy to use. The resistance is easily adjusted using the twist knob on the end of the device.The device does not come with a training guide or plan, which would help determine recommended frequency of use and how long each session should be for optimal results.

This will help your lungs breath deeper and steadier with adjustable resistance. Practice your breathing with this device and steadily watch your time lengths grow longer and stronger as you practice building up your lung strength.