Air purifying system
US11781764B2 · kind B2 · utility
0Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2019 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Oct 11, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air purifying system having a series of specific filters stacked to facilitate removal of particles from the air. Removable filters include a pre-filter, a HEPA electrostatic filter, an activated carbon filter and a cold catalyst filter. Additional filters or alternate filters may be used, so long as there is no negative impact on the system efficiency and effectiveness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.