Oxygen O2 Med Flow Masks Set Of 2 Medline Disposable Oxygen Masks Provide Patients with Extra Comfort and a Better Fit Disposable oxygen masks are latex-free and available in a variety of styles. Each mask is designed for patient comfort with a soft anatomical form. Barbed fittings help prevent the patient from disconnecting the mask. Elastic straps and adjustable nose clips secure the mask to provide a better fit. Adult Mask w/ 7′ Tubing, EA.