A lung instrument training device including at least one weighted insert, a hollow cylinder having a bottom and a top, wherein the weighted insert is positioned within the hollow cylinder, and a tube, wherein the distal end of the tube is connected to the bottom of the hollow cylinder, and a user breathes into the proximal end of the tube. A method for exercising lung capacity, strength and control including exhaling air from a user's lung in a tube connected to a cylinder, moving at least one weighted insert positioned inside the cylinder; and regulating the position of the weighted inserts within the cylinder.

Disclosed are biofeedback methods and devices suitable for providing biofeedback useful 1 for helping a user control an own breathing, for example, to help in inducing deep breathing, and such biofeedback devices further comprising a dispenser for dispensing an inhalable substance.

The present invention provides a spacer device having a flow rate spirometer. The flow rate indicator allows users to use a measured, consistent flow rate leading to improved synchronicity and actuation.

The present invention provides a spacer device having a flow rate spirometer. The flow rate indicator allows users to use a measured, consistent flow rate leading to improved synchronicity and actuation.

A pump device, a respiratory device and a method for providing a respiratory gas. A specially formed rotor and a corresponding pump chamber are used so that an approximately sinusoidal flow of an out-flowing fluid is possible. With the combination of two pump chambers with rotors driven in a 180 phase-shifted manner to one another, an almost constant flow can be created at a common outlet. In addition, the system is designed to be highly dynamic with simultaneously relatively low energy consumption.