US 12,458,082 B2
Anti-fogging facemask
Eugene Orloff, Bayside, NY (US); Paul V. Braun, Champaign, IL (US); and Eric Scott Epstein, Pittsburgh, PA (US)
Assigned to TearDX LLC, Bayside, NY (US)
Filed by TearDX LLC, Bayside, NY (US)
Filed on Feb. 3, 2023, as Appl. No. 18/105,521.
Application 18/105,521 is a continuation in part of application No. 17/701,441, filed on Mar. 22, 2022.
Claims priority of provisional application 63/164,070, filed on Mar. 22, 2021.
Prior Publication US 2023/0180863 A1, Jun. 15, 2023
Int. Cl. A41D 13/11 (2006.01); A41D 27/28 (2006.01); A41D 31/14 (2019.01); A62B 23/02 (2006.01)
CPC A41D 13/1107 (2013.01) [A41D 13/1169 (2013.01); A41D 27/28 (2013.01); A41D 31/14 (2019.02); A62B 23/025 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An anti-fogging facemask comprising:
an outer facemask;
an inner facemask, wherein the inner facemask is attached to the outer facemask; and the inner facemask retains a portion of CO2 from exhaled breath such that the mean concentration of CO2 within the inner facemask is at least 10% greater than the mean concentration of CO2 within the outer facemask when used by a human adult.