Disposable Inhaler Spacer allows entry of inspired air from the metered-dose inhaler(MDI) through the mouthpiece to the patient, but not back to the medication device. The design protects patient and medication canister from cross infection. ME7308 Disposable MDI Mouthpiece is an inexpensive alternative to dispensing chambers or nebulizing medication for pre and post bronchodilator assessment. Disposable MDI Spacer is designed to fit standard size metered-dose inhalers. Disposable Inhaler Spacer is Latex, lead, PVC, Phthalate, and BPA free.