The three key aspects of occupational hygiene are recognition, evaluation, and control. Of these, control is the most important as it is what occupational hygienists aim to achieve. There are still many workplaces where exposure control could be improved due to issues like lack of awareness about risks, poor specification relying too heavily on PPE, and poor implementation and use of controls. Guidance from organizations like the HSE can help workplaces improve exposure control through best practices focusing on practical guidance for effective controls and their management.