During a recent internal review, 3M discovered a potential issue involving Half Facepiece Disposable Respirators 5000 Series. In a limited number of instances, they have observed a pinhole in the chin area of the face seal. This affects only certain 5200 (Medium) respirators that were manufactured in July 2019, with Lot Numbers 9184 through 9204. No other 3M half facepiece respirators are affected by this issue. If you believe you have a respirator affected by this recall, please complete the form at https://engage.3m.com/5000Series. Or if you have any questions refer to the full User Advisory Notice or contact 3M Technical Service at 1-800-243-4630.