Fig 4

Atomic force microscopy of biomass captured. The Inspirotec Sampler was run 6 days in the bathroom (Table 1) and scanned (see “Methods” section). a False color 3D representation of a 10 × 10 μm square. Height above the plane is in the same micrometer scale. b Particle size distribution analysis of same data. Size distribution in 512 bins and percent of particles in each bin plotted. Inset: 0–0.8 μm range shown on ×10 expanded scale