CH401 is a chair by Hans J. Wagner for Carl Hansen & Son. Steel structure with seat and back in cold foam fireproof and upholstered in fabric or leather.CH401 is a chair made by handmade on a beech wood frame; the legs and boomerang-shaped sides are of stainless steel. Its design is minimalist and elegant. It is also known under the name "The Airport Chair" or "The Kastrup Chair" as it was originally designed specially for use in Copenhagen Airport in Kastrup. Also available CH402 with two seater with the possibility of adding the steel arm.