Respirators, 3M Particulate Farm Supplies For lettuce: These bags are

For lettuce:  These bags are 11" wide

Single Face Corrugated Cardboard

Please click  for 3M 8210 Spec Sheet

the next bag is automatically pulled open

They look like a C

Respirators, 3M Particulate Farm Supplies For lettuce: These bags are3M'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