Filter element, filter, and method for removing odors from indoor air
US4604110A · kind A · utility
75Cited by
50References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1985 |
| Grant date | Aug 5, 1986 |
| Priority date | — |
| Expiry date | Feb 28, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/4508
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air filter element for removing odors from indoor air having a dry of a mixture of silica gel, activated carbon, and a zeolite. This dry mixture may also be impregnated with a liquid for inhibiting the growth of microorganisms, the liquid being a fungicide/bacteriocide preservative and a polyhydric alcohol, or a grapefruit pulp/polyhydric alcohol reaction product. Also disclosed are novel air filters having these air filter elements and a material for removing particulate matter from indoor air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.