US 12,133,996 B2
Bidirectional reusable filtering face mask
Oscar Meschi, Genoa (IT)
Assigned to UPBIOCARE S.R.L., Genoa (IT)
Appl. No. 17/997,565
Filed by UPBIOCARE S.R.L., Genoa (IT)
PCT Filed Apr. 29, 2021, PCT No. PCT/IB2021/053576
§ 371(c)(1), (2) Date Oct. 31, 2022,
PCT Pub. No. WO2021/224734, PCT Pub. Date Nov. 11, 2021.
Claims priority of application No. 102020000009631 (IT), filed on May 4, 2020.
Prior Publication US 2023/0218931 A1, Jul. 13, 2023
Int. Cl. A62B 18/02 (2006.01); A62B 18/00 (2006.01); A62B 18/10 (2006.01); A62B 23/02 (2006.01)
CPC A62B 18/025 (2013.01) [A62B 18/006 (2013.01); A62B 18/10 (2013.01); A62B 23/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A bidirectional reusable filtering face mask for preventing bacteriological and viral contaminations transmissible by means of respiratory droplets emissions, comprising:
an anatomical base, the anatomical base comprising means for adherence to a face and pass-through elements employable for closing the mask by mean of ties, the mask comprising:
a first filtering chamber configured to prevent respiratory droplets from spreading, the first filtration chamber comprising a removable disposable filter affixed on an outer side of the anatomical base;
a second filtering chamber comprising a removable dome with a recess in its apical portion, the recess accommodating a main removable disposable filter, the main removable disposable filter being secured to the recess by a protective grid; and
means for assembling components of the second filtering chamber with the first filtering chamber.