For individuals suffering from mucus-producing respiratory conditions, the Quake offers comprehensive and convenient secretion clearance therapy in a portable, easy-to-use, handheld device.

The heart of the Quake’s percussion mechanism is two barrels with matching slots with one fitting snugly over the other. When these slots are aligned, the patient’s breath passes freely through device. When the slots are not aligned, back pressure is created as the patient’s continuous breath is prevented from escaping. This design allows the patient, with training, to create the ideal frequency and percussive pressure by manually rotating the outer barrel at the ideal rate while breathing through the device. The faster a patient rotates the handle, the greater the frequency and lower the pressure; the slower the handle rotation, the lower the frequency and greater the pressure.