Polypropylene Facemask - Ear Loop and Headband - 3 Ply - 7"x3.5" - White Disposable, comfortable and lightweight Adjustable flat aluminum nosepiece Available with knit ear loop, covered round ear loop or ties This item is sold and priced per case (1000 masks per case). Physical Characteristics: Compatible for use in CLASS 100 environments. Cleanroom contamination control, disposable non woven face mask with floss-covered round elastic ear-loop for comfort. Non-linting. Nonwoven pleated, 7"x3.5" rectangular, glass-free material provides bacterial filtration efficiency of more than 95%. Made with malleable flat aluminum for a better fit. Individually inspected for sizing, material and workmanship. Packaging and Markings: 50/ Double poly bag, 20 bags/ case ( 1,000 Pieces/ Case)