The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 16, 2023

Filed:

Nov. 24, 2021
Applicant:

Rht Limited, Hong Kong, CN;

Inventors:

Chi Keung Rudy Chan, Hong Kong, CN;

Ka Wai Jim, Hong Kong, CN;

Lam Lung Yeung, Hong Kong, CN;

Assignee:

RHT LIMITED, Hong Kong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L 9/015 (2006.01); B01J 23/34 (2006.01); B01J 21/04 (2006.01); B01J 21/08 (2006.01); B01J 29/06 (2006.01); B01J 35/02 (2006.01); B01J 35/10 (2006.01); F24F 8/26 (2021.01); F24F 8/108 (2021.01); F24F 8/167 (2021.01); B01D 53/86 (2006.01); B01D 46/00 (2022.01); A61L 9/12 (2006.01); A61L 2/02 (2006.01); B01J 20/18 (2006.01);
U.S. Cl.
CPC ...
A61L 9/015 (2013.01); A61L 2/022 (2013.01); A61L 9/122 (2013.01); B01D 46/0028 (2013.01); B01D 46/0049 (2013.01); B01D 53/8675 (2013.01); B01J 20/18 (2013.01); B01J 21/04 (2013.01); B01J 21/08 (2013.01); B01J 23/34 (2013.01); B01J 29/061 (2013.01); B01J 35/023 (2013.01); B01J 35/026 (2013.01); B01J 35/1057 (2013.01); B01J 35/1061 (2013.01); F24F 8/108 (2021.01); F24F 8/167 (2021.01); F24F 8/26 (2021.01); A61L 2209/11 (2013.01); A61L 2209/14 (2013.01); A61L 2209/212 (2013.01); B01D 2255/2073 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/30 (2013.01); B01D 2255/50 (2013.01); B01D 2255/9202 (2013.01); B01D 2257/106 (2013.01); B01D 2273/30 (2013.01); B01D 2279/65 (2013.01);
Abstract

In certain exemplary embodiments, an air purifier comprises a housing defining an enclosure and having an air entrance and an air exit; a particulate filter; a NCCO filter material configured to adsorb and decompose at least one gaseous pollutant; an AOG configured to generate at least one oxidant; an oxidant remover configured to remove at least one oxidant; a fan unit configured to generate airflow from the air entrance to the air exit; wherein the particulate filter, the NCCO filter material, the AOG, the oxidant remover and the fan unit are positioned within the enclosure such that during operation, a flow of air passes from the air entrance to the air exit through the particulate filter and the NCCO filter material along a direction of the flow of air. In certain embodiments, the air purifier may ensure safety to users while efficiency in removing contaminants can be greatly improved.


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