Abstract
Several studies have shown that supply air filters in
office buildings, schools etc. occasionally get wet due
to weather impacts. The aim of this study was to
investigate whether performance characteristics, such as
pressure drop across the filter and filtration
efficiency, change when two different kinds of air
filters become soaked and dried. The filters used, were a
fiberglass bag filter and a plastic fiber bag filter,
each of filter class F7. The study showed that getting
wet did not affect the shape of the dried filter
material of plastic fibers. Therefore, neither the
pressure drop nor filtration efficiency changed. Instead,
the material of the fiberglass filter transformed its
structure from wadding-like to papery. Hence its pressure
drop clearly increased and the filtration efficiency
improved.
| Original language | English |
|---|---|
| Title of host publication | Indoor Air 2002 |
| Subtitle of host publication | 9th International Conference on Indoor Air Quality and Climate |
| Editors | Hal Levin |
| Publisher | International Academy of Indoor Air Sciences |
| Pages | 1065-1069 |
| Volume | 2 |
| ISBN (Print) | 978-0-9721832-0-8 |
| Publication status | Published - 2002 |
| MoE publication type | A4 Article in a conference publication |
| Event | 9th International Conference on Indoor Air Quality and Climate, Indoor Air 2002 - Monterey, United States Duration: 30 Jun 2002 → 5 Jul 2002 Conference number: 9 |
Conference
| Conference | 9th International Conference on Indoor Air Quality and Climate, Indoor Air 2002 |
|---|---|
| Abbreviated title | Indoor Air 2002 |
| Country/Territory | United States |
| City | Monterey |
| Period | 30/06/02 → 5/07/02 |
Keywords
- air filter
- filtration efficiency
- pressure drop