An experiment conducted on the Roissy airport shuttle buses by UUDS Aero, Transdev and MetalSkin Technologies has demonstrated the effectiveness of the MetalSkin biocide coating on contact points such as handrails and other on-board equipment and coatings. During 21 days, the microbial loads remained at levels below the significance level of 50 and often equal to 0. Nine contact surfaces were equipped with MetalSkin, with disinfection occurring every 3 days. Measurements were taken periodically for 21 days. According to UUDS Aero and Transdev, “between 2 disinfections, the equipped elements presented an excellent level of hygiene never reached over such a period of time”.