ASTM LEVEL 3 TESTED BY NELSON LABS: PlastCare USA’s Level 3 Guardian masks are tested by Nelson Labs in the United States. 4-PLY : PlastCare USA’s Level 3 Guardian masks are made of not 3 layers but 4 layers!
Material: 2.0 Mil Clear Virgin LDPE Plastic. Count: 100 bags. Why Choose Our Clear Zip Poly Bags?. Model: Reclosable Zip Plastic Bags MPN: Reclosable_Zip_Plastic_Bags Unit Quantity: 100 count Features: Food Grade,Resealable,Zipper Seal,Airtight Seal,Water Resistant Seal,One Touch Seal,Durable,Odorless,Non-toxic,Easy to organize,Ideal for crafts,Ideal for sewing supplies,Ideal for small parts,Suitable for food service applications.