Check the gap: Facemask performance and exhaled aerosol distributions around the wearer
Fig 2
Schematic of experimental set-up.
A. Schematic of the enclosed box experimental setup showing the (a) face model, (b) idealized airway replica, (c) throat adapter, (d) PARI LC Sprint Nebulizer, (e) Vios compressor, (f) particle counter, and (g) facemask. Additionally, the locations where particle counts were measured are represented by red dots; specifically, the Front, Side, and Top. B. Schematic of the open bench experimental setup, showing the face model with a facemask, connected to the same nebulizer (not shown), and the distances at which particles were measured with the particle counter: one foot, three feet, and six feet (0.3 m, 0.9 m, and 1.8 m), in both the Front and Side positions. C. Representative example of the data collected at each sample, with particle size bins for 0.3, 0.5, 1, 3, 5, and 10 μm particles grouped together in increasing order such that each grouping represents a facemask and position, such as No Mask and With Mask for one foot (0.3 m) from the model.