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A testing apparatus and method includes a PTFE layer; placing a sorbent pad on the PTFE layer; applying contaminants to a protective material; placing the protective material adjacent to the sorbent pad with the side having contaminants opposite the sorbent pad; applying a weight to the protective material causing the protective material to contact the sorbent pad, and determining any permeation of contaminants through said protective material causing exposure on the sorbent pad to the contaminants; and measuring a level of contamination of the sorbent pad upon exposure to any contaminants which permeated the protective material. A second PTFE layer may be placed in between the weight and the protective material. Additionally, another PTFE layer may be placed in between the protective material and the sorbent pad. The protective material may include any of air impermeable materials, air permeable materials, and semi-permeable materials.