The Honeywell North RU8800 Series half mask was designed specifically to accommodate hard-to-fit users. It includes three unique features that make it adaptable to almost any facial structure. The wraparound profile forms to the user's face while the facepiece pleats guide the mask towards the face and the triple flange, which includes three distinct sealing surfaces, provides sealing security for greater freedom of movement. Honeywell North RU8800 Series Half Mask Respirator