| The 2360 features the Dura-Mesh shell that protects the filter media so it stays cleaner looking longer. Resists collapsing in heat and humidity. Molded nose bridge with full foam cushion eliminates pressure points for added comfort. Also features adjustable straps, Ventex exhalation valve, and Softspun lining for increased comfort and durability. NIOSH certified to have a filter efficiency of 99.97% against oil and non-oil based particulates. |