Muaj ib yam tshwj xeeb ntawm stainless hlau phaj ntawm stainless hlau daim hlau, uas yog stainless hlau microporous suab-absorbing panels. Cov hlau tsis zoo no muaj cov qauv tsim los ntawm micropores ntawm qhov chaw, uas yog qhov zoo nkauj heev.