Table 3.

Aspiration efficiency fraction, by velocity, orientation, and particle size.

Velocity conditions	Particle size (µm)	Orientation relative to oncoming wind (0 = facing the wind)
		0	15	30	60	90	135	180	Averaged
0.1 m s−1, moderate breathing	7	1.003	0.994	0.992	0.989	0.992	0.942	0.627	0.93
	22	0.998	0.988	0.983	0.970	0.983	0.799	0.785	0.91
	52	0.923	0.909	0.895	0.830	0.894	0.643	0.843	0.82
	68	0.842	0.823	0.797	0.736	0.797	0.637	0.757	0.75
	82	0.735	0.705	0.673	0.595	0.673	0.574	0.624	0.63
	100	0.112	0.117	0.105	0.139	0.105	0.343	0.102	0.17
	116	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
0.1 m s−1, heavy breathing	7	1.000	0.996	0.995	0.993	0.999	0.938	0.839	0.96
	22	0.999	0.993	0.988	0.983	0.945	0.786	0.854	0.91
	52	0.947	0.945	0.938	0.895	0.821	0.766	0.614	0.82
	68	0.900	0.894	0.887	0.838	0.733	0.756	0.622	0.78
	82	0.825	0.823	0.783	0.761	0.650	0.699	0.697	0.73
	100	0.685	0.678	0.655	0.652	0.434	0.510	0.556	0.56
	116	0.267	0.275	0.291	0.319	0.097	0.409	0.329	0.29
0.2 m s−1, at-rest breathing	7	1.018	0.992	0.992	0.988	0.946	0.675	0.897	0.89
	22	1.004	0.988	0.976	0.948	0.866	0.720	0.835	0.87
	52	0.892	0.842	0.816	0.671	0.387	0.409	0.752	0.60
	68	0.659	0.635	0.650	0.496	0.272	0.390	0.425	0.45
	82	0.257	0.202	0.258	0.283	0.106	0.276	0.038	0.20
	100	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
	116	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
0.2 m s−1, moderate breathing	7	1.009	0.999	0.993	0.990	0.972	0.759	0.879	0.92
	22	1.006	0.989	0.983	0.965	0.905	0.854	0.749	0.90
	52	0.936	0.909	0.872	0.785	0.679	0.452	0.841	0.71
	68	0.860	0.819	0.771	0.653	0.531	0.421	0.750	0.62
	82	0.681	0.681	0.645	0.528	0.405	0.422	0.493	0.51
	100	0.152	0.133	0.137	0.211	0.179	0.287	0.072	0.19
	116	0.000	0.000	0.003	0.007	0.000	0.002	0.000	0.00
0.2 m s−1, heavy breathing	7	0.998	0.999	0.994	0.992	0.948	0.822	0.827	0.92
	22	0.995	0.994	0.990	0.981	0.895	0.918	0.792	0.93
	52	0.940	0.946	0.938	0.893	0.669	0.681	0.643	0.77
	68	0.887	0.896	0.876	0.812	0.507	0.602	0.752	0.71
	82	0.819	0.829	0.805	0.727	0.378	0.571	0.734	0.64
	100	0.510	0.576	0.602	0.563	0.222	0.478	0.531	0.47
	116	0.281	0.286	0.302	0.326	0.097	0.365	0.231	0.27
0.4 m s−1, at-rest breathing	7	1.021	0.995	0.990	0.995	0.933	0.543	0.822	0.85
	22	1.012	0.994	0.967	0.917	0.822	0.516	0.994	0.82
	52	0.883	0.868	0.811	0.572	0.335	0.309	0.617	0.53
	68	0.663	0.660	0.694	0.374	0.036	0.331	0.098	0.33
	82	0.356	0.349	0.347	0.195	0.000	0.209	0.011	0.17
	100	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
	116	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
0.4 m s−1, moderate breathing	7	1.020	0.993	0.993	0.991	0.982	0.914	0.860	0.96
	22	1.000	0.990	0.980	0.948	0.878	0.893	0.795	0.91
	52	0.913	0.884	0.842	0.684	0.522	0.582	0.788	0.68
	68	0.787	0.786	0.745	0.535	0.282	0.437	0.308	0.49
	82	0.560	0.562	0.640	0.409	0.274	0.318	0.223	0.38
	100	0.156	0.229	0.224	0.213	0.000	0.267	0.011	0.16
	116	0.00	0.00	0.02	0.00	0.00	0.00	0.00	0.00
0.4 m s−1, heavy breathing	7	1.008	0.996	1.010	0.992	0.948	0.914	0.834	0.95
	22	1.002	0.988	0.983	0.965	0.895	0.893	0.440	0.87
	52	0.920	0.910	0.872	0.779	0.669	0.582	0.617	0.72
	68	0.815	0.829	0.789	0.666	0.507	0.437	0.623	0.61
	82	0.663	0.697	0.711	0.571	0.378	0.318	0.542	0.50
	100	0.462	0.458	0.542	0.443	0.222	0.267	0.299	0.35
	116	0.336	0.308	0.311	0.316	0.097	0.216	0.084	0.22