Half Face Chemical Respirator Mask

1.Fitted over the front of each chemical cartridge is a white fiber pad held in place by a clear plastic retainer ring (3M 501). These pre-filters capture physical dust, mist, and liquid spray before they reach the main chemical filter. 2.Plastic strap mounts are visible at the top corners, connecting to a drop-down cradle head harness designed to hold the mask securely against the face without pinching.