ASTM LEVEL 3 Earloop White Mask - 2 Boxes of 50 Non-Metallic/Non-Conductive EXPIRATION DATE 05/28/2024 Bacterial Filtration Efficiency (BFE): Rated at 99.8% Particulate Filtration Efficiency (PFE) rated at 99.9% ASTM Level 3 Fluid resistant up to 160mm HG Features an aluminum nose wire for a customized fit Conical earloops for better comfort behind the ears Item is NEW *Box Opened For Picture* Item comes exactly as pictured. If it is not in the picture, it does not come with the item unless stated in the description. You may not receive the exact unit pictured, but one in similar condition. Check compatibility with your system. We are not responsible for incompatibility or improper installation. 20% RESTOCKING FEES AND SHIPPING WILL BE CHARGED. IF ITEM IS FUNTIONAL OR INCOMPLETE. Your feedback is extremely important to us! If you are satisfied with our service please take the time to give us positive feedback. We tremendously appreciate it! We strive for your complete satisfaction. Likewise, if you have any issues, please contact us first, and we promise we will do our best to satisfy your needs and solve the problem. If we resolve your problem, we kindly ask you to still leave us positive feedback. Your kindness will be extremely appreciated!