6. Engineering controls
These include barriers and partitions to separate employees from each other and the public, including screens around supermarket checkouts and other workstations for example. Engineering controls also include sensors and hands-free or no- or low-touch controls for taps, doors or bin lids. Perspex screens are now a familiar sight around checkouts in supermarkets and other shops, and have also been installed in factories. Crucially, they also include ventilation.