Every 1 to 3 months to ensure a proper, leak-free seal.
Every 3 to 6 months to avoid small cracks or mineral buildup.
Visiting a brick-and-mortar store (DME) is best for initial mask fittings to ensure you get the right size for your facial features. 4. Insurance vs. Cash Pay
Every 6 months, as the fabric and plastic lose their structural integrity. 2. Prescription Requirements: What You Need