Protection from particles and gases. A few weeks ago, Marie started her part-time job at a youth centre. She is able to supervise the young people there several times a week alongside her studies and is responsible for the workshops and leisure activities. As she is very talented artistically, she is planning a street art camp for the activity during the summer holidays. There, the teenagers can spray the walls with graffiti artwork in specially designated places in the city. However, young participants in particular need to be optimally protected from the particles and gases that escape from the spray bottles. The 3M Aura 9322 respirator with valve offers protection against solid and liquid particles.