Excellent barrier against dry particles, liquid certain chemical splash add spray (CE Type 4/5/6) Taped seams across the suit for better protection and increased durability Soft, well-draping laminated material Biological protection tested to EN 14126 2-way zipper with fully sealable storm flap for added on â?? off convenience and extra protection 3-panel hood design for enhance3d compatibility with complimentary PPE Knitted cuffs and elasticated waist and ankles for increased comfort and freedom of movement Anti-static treatment to EN1149 to reduce charge build up CE Type 4 Testing to Type 4 standards requires the coverall material to be put through additional testing. A whole body suit test is conducted with a higher volume of liquid than the equivalent Type 6 test. More importantly, the material and the seams have permeation tests conducted with a minimum of one chemical to assess whether the chemical/s can get through the material at a molecular level.