Method and apparatus for purification and treatment of air
US11406931B2 · kind B2 · utility
0Cited by
11References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2019 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Oct 13, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2258/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention discloses methods and apparatus(es) for the removal and control of pollutants such as gases and suspended particulates in the air of an enclosed space or an outdoor environment by passing the air through absorbent media. The absorbent media includes any liquid, solid or combination of liquid and solid media that is capable of absorbing a material in which it comes in contact. In one aspect of the invention, formaldehyde is removed by air sparging through a liquid such as water, optionally containing additional scavenging agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.