Yes. All of our products are covered by a 90-Day Warranty covering the flux valves, sleeve, silicon mask, and Velcro. Damage caused from NON use is NOT covered. If you wish to make a warranty claim, please send a good quality photo of the 'faulty' portion of your Training Mask to firstname.lastname@example.org. In your email please ensure you include your full name, contact phone number and order number.