iMask ASTM Level 3 rated face masks possess maximum fluid resistance are recommended for any procedure where moderate to heavy amounts of spray, splatter, and aerosols are expected. The multilayer non-woven fabric provides excellent fluid resistance while being soft and gentle on the skin. Full length ultrasonic-welded earloop straps and built-in adjustable nosepiece offer a secure and comfortable fit. These masks have been independently tested to meet ASTM Level 3 medical face mask standards for fluid resistance and bacterial and particle filtration efficiency.