The compendium provides guidance on low-cost handwashing facilities that can be widely used in low and middle-income countries. We hope that this can be shared extensively as governments and agencies tackle the crisis in low and middle-income countries where handwashing facilities are urgently needed in households, communities, schools and healthcare facilities. The compendium includes information and further reading on: handwashing facilities – including facilities that are accessible for all, environmental cues to reinforce handwashing behaviours, physical distancing hygiene promotion.