Personal hygiene has a special role to play here, as regular disinfection of e.g. products/exhibits on display cannot be ensured. This is why disinfectant must be provided to visitors to trade fair stands. Regular cleaning (e.g. every one to two hours) is also recommended in the case of surfaces that can be wiped and are subject to frequent touching. Meeting tables or tables where food is served must be wiped following each change of group.