Isosource® 1.5 Cal Tube Feeding Formula, 50.7 oz. Bag, 1 Case of 4 Bolster Rolls Wedges Certified by NIOSH and the Autoclavable Up to 325 Certified by NIOSH and the FDA this mask is certified for both medical and industrial use * N95 masks guard against microorganisms body fluids and particulate material * Easy to put on and take off and contain no fiberglass * Offers an improved fit with improved rigidity and inner foam strip to reduce eyewear fogging * Valve helps improve airflow and further reduces fogging while offering improved functionality * Close facial fit and highly effective filtration system * The protective capabilities of N95 respirator masks often surpass those of regular face masks * N95 masks are intended to be used for protection against solids such as those from minerals coal iron ore flour and many other substances * They are extremely durable with a soft and comfortable inner surface * Adjustable nosepiece and secured headstraps to provide proper fit * These masks have a 510(K) number for the medical market and can be used in TB situations as recommended by OSHA * NIOSH Approval: TC 84A 5411 FDA 510 (K): K020474 * SP * Folds easily for compact storage and transport The ready to hang bag contains pre mixed formula for time saving convenience 250 calories