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Respiratory Helmet (M-307)
Easy to connect to tubo unit
Net weight: 498g
via cable for safe and independent communications
Secure by design: AES-encrypted recordings
3M™ HF-301 Reusable Half Face Mask Respirator - Small 855e Respiratory Helmet (M-307)Key Features Previously named the Scott AVIVA 40 Size small Compatible with the 3M Filters DT Series Hybrid reflex seal contours and flexes to the user's face to aid wearer's comfort Seal check mechanism when pressed during exhale, the mask will inflate slightly showing a good seal has been achieved Integrated voice panel for enhanced voice intelligibility while wearing the mask Nose pinch allows for improved integration with eyewear Comfortable Thick
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