1. You can set the position of the ball inside the PULMOTRAINER® with the scale on the side depending on you current lung capacity. So both children and adults can use it!
![skala](http://www.pulmotrainer.hu/wp-content/uploads/2015/02/skala-300x157.png)
2.Unlike other machines the PULMOTRAINER® is usable in any position than just one. Usage is easy, not sensitive to shifting while using. The user does not have to bother with setting the right position.