Plum has worked in health policy and public affairs for the last 20 years, with experience in the UK Parliament, international public affairs agencies and in-house for patient advocacy organisations. Plum wrote her undergraduate dissertation on learning the lessons of pandemics of the past to prepare for pandemics of the future and has an MSc in Public Health (Nutrition). As a result of Plum’s professional background, and personal lived experience with an immunocompromised and high-risk family, she has founded The Safer Air Project, on a mission to get indoor air quality recognised as a critical accessibility and inclusion issue for people living with chronic health conditions, in order to make indoor air safer for everyone to breathe.