ALTRO HYGIENIC WALL & CEILING SYSTEMS. Pacific Flooring Services (PFS) conducted this impact test on Altro Whiterock wall cladding. Altro Whiterock can be used in hospitals, education facilities, retial outlet, food and drink manufacturers- in fact anywhere a hygienic high impact-resistant internal walling is required. Keywords: Hygienic Wall & Ceiling Claddings, Hygienic Panels.