The purpose of this communication is to inform you of a correction needed to the labeling of 3M Attest Auto-readers 390, 390G, & 490. Labeling on units shipped prior to May 16th, 2014 did not contain the statement “This product contains dry natural rubber” as required by the United States Food and Drug Administration (FDA) for medical devices. The non-slip pads at the bottom of the unit contain dry natural rubber. One incident of an allergic reaction in a sensitized individual has been reported. 3M Attest Auto-reader. Model numbers 390, 390G,and 490. These devices incubate the biological indicators (BIs) to determine a positive or negative result for the sterilization cycle.