ERS | monograph Guest Editors Johanna Feary Johanna Feary is a relative newcomer to occupational lung disease, having arrived in her current position at the Royal Brompton Hospital (London, UK) in 2014 following a series of happy twists. She is a consultant in respiratory medicine and holds an academic position at Imperial College London (London, UK), a combination of roles that allows her to carry out clinical work as well as research and teaching. She enjoys unpicking the close interplay between an individual’s health, their work and the environment, and has a particular interest in occupational asthma and other airways diseases and in the aetiology of hypersensitivity pneumonitis. She was previously a member of the British Thoracic Society Specialist Advisory Group on Occupational and Environmental Medicine and is an active member of GORDS UK (Group of Occupational Respiratory Disease Specialists). Hille Suojalehto Hille Suojalehto has worked with occupational respiratory diseases for 15 years, and is currently Chief Respiratory Physician at the Finnish Institute of Occupational Health (Helsinki, Finland) and Associate Professor at the University of Helsinki (Helsinki, Finland). In clinical practice, she examines patients with suspected occupational respiratory diseases. Her research interests include occupational asthma, the mechanisms of allergic airway diseases and indoor air-related symptoms. In 2015, she co-chaired a European Respiratory Society (ERS) task force on specific inhalation challenge testing in the diagnosis of occupational asthma. Hille is currently a member of the European Academy of Allergy and Clinical Immunology’s (EAACI) Environmental and Occupational Allergy Interest Group and of the EAACI exam committee. She is also a member of the Finnish National Indoor Air and Health Programme expert panel, which aims to improve the treatment of those experiencing indoor air-related symptoms. Copyright ©ERS 2020. Print ISBN: 978-1-84984-124-5. Online ISBN: 978-1-84984-125-2. Print ISSN: 2312-508X. Online ISSN: 2312-5098. https://doi.org/10.1183/2312508X.10023520 vii