Respirators, 3M Particulate Farm Supplies Our Ice Bags contain a

Our Ice Bags contain a special resin to hold up under freezing conditions

Please click  for 3M 8210 Spec Sheet

They look like a C

Single Face Corrugated Cardboard

Respirators, 3M Particulate Farm Supplies Our Ice Bags contain a3M's 8210 and 8511 respirators are N95 rated for use against non oil airborne particles. Adjustable nose clip with foam padding provides a secure fit. The 8210 particulate respirator is suitable for workplace applications including grinding, sanding, sweeping, bagging and other dusty operations. Please click for 3M 8210 Spec Sheet. The 8511 particulate respirator is similar to the 8210 but has an exhalation valve for easier, cooler breathing. Please