Hygiene Measures and Thirst Quenchers for Outdoor Events Portable hand washing stations ensure the water supply at music festivals or other open-air events. Whether for hand washing, dental hygiene or refilling empty drinking bottles: Fresh water is essential for such activities. REFRESHERS AND BEST HYGIENE All participants attending the event feel well cared for with portable drinking and washing facilities. By serving as effective refreshers on the event site and making hygiene possible, they also contribute to health. MOBILE HAND WASH BASINS Topindus have different facilities available for this purpose. Mobile hand-washing basin: Sufficient washing places create the best conditions for more cleanliness.