Description ( 3M RESPIRATOR 4251 SERIES ) Integral construction respirator designed for effective and comfortable protection against many organic, vapours and combination particulate hazards found throughout industry. One piece carbon filter elements with built-in P1 or P2 filters with low breathing resistance A soft, low profile face piece for added comfort and peripheral vision Efficient parabolic valve to reduce heat and moisture build-up to provide easier breathing An adjustable head cradle assembly and easy to fasten neck strap
