Paper towels revealed no significant spread of microorganisms. In 2005, in a study conducted by TÜV Produkt und Umwelt, different methods for drying hands were evaluated.
Tishu hazikuonyesha maenezi ya mno ya viini.Mwaka wa 2005, utafiti uliofanywa na TÜV Produkt und Umwelt, mbinu tofauti za kukausha mikono zilitathminiwa.