InspirEase is a delivery system for metered dose inhalers that improves the deposition of medication in the lungs. It eliminates the difficulty of coordination each breath while activating a metered dose inhaler. It allows two full breaths to inhale the entire dosage. A whistling sound warns you if you're breathing too rapidly. The bag should be changed every 3-4 Weeks. Kit contains three bags, mouthpiece and carrying case.