The scenario considered is based on the aircraft cabin, which can be found in the Fraunhofer IBP flight laboratory. Air and aerosol dispersion within a cabin section are simulated. The grid-free flow solver MESHFREE of Fraunhofer ITWM is used for the simulation. The air flow is significantly influenced by the air conditioning and by the rise of warm breathing air. In the scenario considered, a person (3rd person from the left) emits aerosol droplets. Number and size of emitted aerosols are modeled according to . Compared are 3 scenarios with different mask types: N95 masks, surgical masks, and no masks. The mask efficiency data are based on measurements from  and take into account the bypass flow in addition to the pure filter effect.
 Pöhlker, Mira L., et al. »Respiratory aerosols and droplets in the transmission of infectious diseases.« arXiv preprint arXiv:2103.01188 (2021).
 Grinshpun, Sergey A., et al. »Performance of an N95 filtering facepiece particulate respirator and a surgical mask during human breathing: two pathways for particle penetration.« Journal of occupational and environmental hygiene 6.10 (2009): 593-603.