Rosamund Adoo-Kissi-Debrah is a BreatheLife Ambassador and founder of the Ella Roberta Family Foundation, based in London. Rosamund became a clean air advocate after her 9-year-old daughter, Ella, died in 2013 from a rare and severe form of asthma. Rosamund spent several years campaigning for a second coroner's inquest into Ella's death to determine whether it was linked to air pollution. In a landmark decision in December 2020, the coroner ruled that it was. Ella is now the first person in the world to have air pollution listed as a cause of death on her death certificate.

Rosamund is a teacher in schools and lecturer at universities. She is also an Honorary Fellow of the British Science Association and was named among You Magazine's 21 Most Extraordinary Women of 2021, British Vogue's 25 Extraordinary Women of 2021, The Times' Green Power List 2021 and BBC Radio 4 Woman's Hour's Power List 2020.