Our 9500 series of NIOSH approved respirators is the "standard" for all the industries in which these products are used. This is the basic N95 product developed to compete with similar appearing disposable respirators. By far, this cone style of N95 mask is the most widely used mask in all work environments. It has been designed to easily meet NIOSH's stringent approval requirements for breathing resistance and filtration efficiency. Most companies interested in adding N95 respirators to their line of business will select either our 9500 series or the alternative MK series as the focal point around which to build a disposable respirator line.