Advantage 200 LS Half-Mask Respirators. 25% lighter, softer and more stable. Now better-looking, lighter and softer, this facepiece exceedsall previous levels of comfort. The soft, pliable combination of rubber and plastic provides a virtually customized fit. These are key components in the patented MultiFlex System that equalizes pressure on theface-seal area, while delivering exceptional stability, so the respirator will not collapse during wear. Extensive anthropometric research led to the Advantage Respirators unique design. MSAs engineers developed the AnthroCurveTM Sealing Surface that instantly conforms to each wearers unique facial characteristics. Thus, current Advantage 200 Respirator wearers require no additional fit testing. MSA# 815444 MSA 815444 Reusable Respirator - Advantage 200LS - Half Face