The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggesstions for reducing this burden, to Washington Headquarters Services, Directorate for

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... tion Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA, 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any oenalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. a. REPORT BIO-INSPIRED DRY ADHESIVES 14. ABSTRACT 16. SECURITY CLASSIFICATION OF: Earlier project activities demonstrated that half-face respirators integrated with fibrillar polymer structures provide much higher overall fit factors (FFoverall) against challenging facial skin conditions (including unshaved, wet and wet-unshaved) when compared with a conventional (non-modified) half-mask elastomeric respirator. The previous report covered the initiation of comprehensive evaluation of polyurethane microfibrillar arrays integrated with half-face respirator mask using the NIOSH 25-subject bivariate panel; this effort was continued into this reporting