MSA Workman 30 ft Self Retracting Lifeline, Stainless Steel Cable (10120724) N95 Respirator NRR 24 provides OSHA calculated attenuation oil only NRR 24 provides OSHA calculated attenuation of (27 7) 2 = 10 dB for A weighted noise environments — appropriate for environments where the measured 8 hour TWA falls in the range up to approximately 100 104 dBA (where 10 dB reduction achieves the 90 dBA OSHA PEL or 85 dBA NIOSH REL) What the Moldex Jazz Band listing documents self retracting lifelines full body harnesses fall protection anchor points fall protection kits The MSA Workman 30 ft self retracting lifeline (part 10120724) is a stainless steel cable SRL rated to a 400 lb working capacity with 5