The 4200 series are elastomeric half masks with a single particulate filter. Filters are not against the face so they stay cleaner longer. The cradle suspension provides a secure fit. Cradle suspension with "parking" feature assures mask is handy and at the ready. Latex free. North® CFR-1 half masks are ideal for dusty environments that require frequent change out of filters. The welding version features a stainless steel mesh cover to catch sparks and slag. Both the standard and the welding version are shipped with N95 filters. R95 replacement filters are also available for use where oil may be present. Top and bottom headstraps adjust in a single motion for quick and easy donning. Welding version includes mesh screen to catch sparks and slag.