Air filtration
Multi-pocket and rigid bag filters
Rigid pockets and multi-pocket blocks, where a flexible pocket will not hold the airflow.
A rigid pocket keeps its geometry under variable airflow, where a flexible pocket collapses and loses usable area. A multi-pocket block concentrates developed area into a shallower housing, at the cost of a higher initial pressure drop.
Values read from the documents cited
Each value is read from the document its mark refers to. It places the family; it does not describe its full extent. Where the family has published sheets, what those sheets actually carry is stated under the value.
- Filtration class
- ePM1ISO 16890-1:2016[1]Published sheets: ePM1, ePM10 (ISO 16890-1:2016)
Where these figures come from
- Manufacturer datasheetCamfil — Hi-Flo ES — Energy Saving, Extended Surface Area, High Efficiency Air Filtercamfil.com (new window)consulted on 26 August 2026
Published products
2 published products
Family comparison
| Characteristic | Multi-pocket filter, microfibre glass media, ePM1 class | Multi-pocket filter, microfibre glass media, ePM10 class |
|---|---|---|
| Filtration class | ePM1ISO 16890-1:2016 | ePM10ISO 16890-1:2016 |
| Medium | Glass fibre | Glass fibre |
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