US 12,263,436 B2
Fast-track negative pressure isolation system for respiratory infectious disease control
Chak Keung Chan, Hong Kong (HK); Zuankai Wang, Hong Kong (HK); Steven Wang, Hong Kong (HK); Wei Deng, Hong Kong (HK); and Chen Ling, Hong Kong (HK)
Assigned to City University of Hong Kong, Hong Kong (HK)
Filed by City University of Hong Kong, Hong Kong (HK)
Filed on May 26, 2022, as Appl. No. 17/826,134.
Claims priority of provisional application 63/218,512, filed on Jul. 6, 2021.
Prior Publication US 2023/0011256 A1, Jan. 12, 2023
Int. Cl. B01D 46/00 (2022.01); A61G 10/00 (2006.01); A61G 10/02 (2006.01); B01D 46/10 (2006.01); B01D 46/54 (2006.01); F24F 3/163 (2021.01)
CPC B01D 46/10 (2013.01) [B01D 46/0028 (2013.01); B01D 46/54 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A portable vented individual negative pressure enclosure system for extracting potentially contaminated air from an individual comprising:
an adjustable assemblable and disassemblable frame structure configured to surround a bed, chair, or toilet;
a vapor-impermeable flexible sheet extending over the frame structure;
a multi-component air purification system comprising at least a water filtration-based air cleaner and a HEPA filter; and
a plurality of extraction vents communicating with the frame structure or the vapor-impermeable flexible sheet and the air purification system;
wherein the water filtration-based air cleaner includes a particle growth tube for growing the size of extracted aerosol particles to enable their collection in a water tank.