Review on Sellstrom S32001 Replacement Installation Capability by Robert Blair

This Sellstrom Replacement Ratcheting Crown and Headgear is lightweight, comfortable and easy and secure to size. It is easy to assemble with the separately available replacement window DP4 S32100. Align the top outside edge of the window first, then snap the top center slot into place. When the window touches your N95 mask, in addition to the ratchet notches, there's a more precise 4-way pin adjustment that allows you to adjust the screen slightly away from your face and mask.