RoHol developed the original RoHol SaunaPly and SPress walls for sauna and wellness areas several years ago. These special products have proven themselves over the years in demanding sauna use without any problems. In addition, every sauna user can breathe freely and know that the air is safe. SPress and SaunaPly products are glued formaldehyde-poor and emit no pollutants whatsoever. This shows, among other things, that the Austrian limit value for formaldehyde is undershot by more than 50% and so at the limit of the measurability.