This spray can was used to help slow the spread of malaria, a life-threatening disease carried by mosquitoes. The can contained water with particles of a green powder suspended in it. The powder, called Paris green, was very successful at killing mosquito larvae. This spray can was made during World War I (1914-1918), and was probably used by British soldiers.
Use our 3D antimosquito spray model in the classroom to bring your curriculum teaching to life: https://learning-resources.sciencemuseum.org.uk/resources/antimosquito-spray
Find out more in the Science Museum Group online collection: https://collection.sciencemuseumgroup.org.uk/objects/co148025/