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originally posted by: ketsuko
You know what?
I never, ever touch my face more than when I wear that effing face mask. It irritates my nose and eyes.
Polydisperse aerosol penetrations Average penetration levels for the three different cloth masks were between 74 and 90%, while N95 filter media controls showed 0.12% at 5.5 cm s−1 face velocity (Fig. 1). The penetration levels increased significantly for the N95 control filter media but remained 86% at 5.5 cm s−1 with no significant increase at 16.5 cm s−1 (Fig. 2b). Average penetration levels for the three different model towels and scarves were in the 60–66% and 73–89% ranges, respectively, with no significant increase at 16.5 cm s−1 (Fig. 3a,b). Table 1 shows airflow resistance (in millimeter water) at 5.5 cm s−1 face velocity. In general, the resistance levels were less than or comparable to N95 filter material employed in the study (9.8 ± 0.2 cm water gauge; 1 cm water gauge = 1.33 kPa). A cotton towel model (Pinzon) and a scarf material (Today's Gentleman) showed slightly higher resistance levels than the other fabric materials. Slightly higher airflow resistance levels were obtained at 16.5 cm s−1.