Air filtration medium with improved dust loading capacity and improved resistance to high humidity environment
US8282712B2 · kind B2 · utility
31Cited by
20References
96Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2009 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Aug 3, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2239/1233
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtration medium is disclosed for use in air filters used in heating, ventilating and air conditioning systems. The medium contains at least one nanofiber layer of fibers having diameters less than 1 μm and at least one upstream layer, the medium having sufficient holding capacity for dust particles that efficiency loss and pressure loss across the medium are minimized during use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.