Is it possible to convert a normal room into a clean room, is there such a thing as wall paneling and how much would a 100m² room cost?

Is it possible to convert a normal room into a clean room, is there such a thing as wall cladding and what would a 100m² room be approx. 

Yes of course, this is quite common. There are many different wall coverings. Please contact us directly so that we can advise you.