Filter – Sundstrom SR518 Gas Filter A2 Threaded for SR 500 Series PAPR Units
Can only be used in with the SR500
Earmuff – Headband Howard Leight VeriShield VS120 Folding (CL 5 – 31dB)
Earmuff – Hard Hat Attachable ProChoice Viper (CL5 – 26dB)
Earmuff – Folding 3M Peltor Optime I H510F Yellow (CL5 – 28dB)