Half face piece respirator available in medium or largeReusable - Just dispose of the cartridges/filters when used to capacity1 EachSelect an Item3M OH&ESD Half Facepiece Respirator Assemblies, P100http://s7d5.scene7.com/is/image/Staples/s0458420_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0458420_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0458420/3M-OHESD-Half-Facepiece-Respirator-Assemblies-P100/product_SS10639543M OH&ESD Half Facepiece Respirator Assemblies, P1004.01Half face piece respirator, largeSupplied as a complete assembly with reclosable storage bag1 EachEachP100, Large3M OH&ESD Half Facepiece Respirator Assembly, P100, Largehttp://s7d5.scene7.com/is/image/Staples/s0458422_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0458422_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0458422/3M-OHESD-Half-Facepiece-Respirator-Assembly-P100-Large/product_4223573M OH&ESD Half Facepiece Respirator Assembly, P100, Large0.00Half face piece respirator, mediumNIOSH approved for negative pressure air purifying and positive pressure dual airline applications1 EachEachP100, Medium3M OH&ESD Half Facepiece Respirator Assembly, P100, Mediumhttp://s7d5.scene7.com/is/image/Staples/s0458420_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0458420_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0458420/3M-OHESD-Half-Facepiece-Respirator-Assembly-P100-Medium/product_4224133M OH&ESD Half Facepiece Respirator Assembly, P100, Medium4.01