Diffusion can be a problem, and not all seals are made equal. Vigor provides you with the most advanced sealing technology on the market, and a guarantee that your research stays protected from the atmosphere. Vigor gloveboxes are made of stainless steel and are entirely welded except for the front window and gloveports, which is where you'll find our patented double seals. Tucked in between two traditional seals, Vigor has incorporated a vacuum train that eliminates diffusion from either side.