Powerbreathe Classic High ResistanceA, scientifically proven, inspiratory muscle training device that is developed to improve the strength and endurance of the muscles used to breath in. This training tool concentrates its training on your diaphragm and intercostals/ rib cage muscles. Regularly training the POWERbreathe can reduce muscle fatigue and therefore it helps reduce breathlessness and enhances exercise tolerance.Load SettingsLevel 1 = 10cmH2O Level 2 = 40cmH2OLevel 3 = 70cmH2OLevel 4 = 100cmH2OLevel 5 = 130cmH2OLevel 6 = 160cmH2OLevel 7 = 190cmH2OLevel 8 = 220cmH2OLevel 9 = 250cmH2O How to Use1. Put the nose-clip on so that it pushes your nostrils together – this is an optional step but prevents you from breathing in through your nose.2. Breathe in quickly and forcefully through your POWERbreathe for 30 seconds twice a day – preferably do so once in the morning and once at night, allowing your inspiratory muscles times to recover in between sessions.3. As your inspiratory strength and stamina improve, adjust and increase the resistance.4. Within a few days your inspiratory muscle will feel stronger; within 3-weeks you’ll feel less breathless; and within 4 weeks activities will feel easier.5. Full instructions are provided in the accompanying user manual.FeaturesFirst generation POWERbreathe Inspiratory Muscle Training (IMT) deviceMechanical, adjustable with load setting indicatorDrug-free – no side effects or drug interactionsAwarded a Millennium Product by UK Design Council WashableBuy PowerBreathe Training Aids from Chain Reaction Cycles, the World's Largest Online Bike Store.