ELIMFILTERS Canonical Knowledge · Approved
GAIRFIL General Air Filtration for Industrial Ventilation
Engineering Reference · Industrial & Process
Platform: AEREMIS™
Technology: GAIRFIL™
Engineering Relationships
- GAIRFIL™ is the ELIMFILTERS General Air Filtration technology for airborne particulate control in industrial ventilation, make-up air and general air-handling duties.
- The treatment path may use prefiltration and staged particulate capture selected around dust loading and allowable pressure drop.
- Filter configuration must be resolved together with the existing air-handling system, housing condition and service-access constraints.
- GAIRFIL™ maps to TC-AIR-01 and remains distinct from HE-CRIVA™ critical-air filtration; the General Air Filtration descriptor is retained for technical classification and discovery clarity.
Problems
- Airborne particulate loading
- Visible dust downstream
- Unexpected pressure-drop rise
- Short service intervals
- Bypass or sealing evidence
Diagnostic Methods
- Review differential-pressure trend and visible loading across the installed stages.
- Inspect housing, sealing surfaces and filter seating for bypass paths.
- Compare service interval behavior with actual dust loading and airflow duty.
Corrective Actions
- Re-evaluate staging when upstream loading is prematurely consuming the final filter stage.
- Correct housing or sealing defects before attributing downstream dust solely to media performance.
- Re-select media or stage arrangement when allowable pressure drop and contaminant loading are mismatched.
Operating Conditions
- Variable outdoor-air dust loading
- Continuous or intermittent ventilation duty
- Space and service-access constraints
- Pressure-drop limits across the air-handling system
Standards
- ISO 16890-1:2016 — ePM-based classification and general requirements for air filters used in general ventilation.
- ISO 16890-2:2022 — measurement of fractional efficiency and airflow resistance.
- ISO 16890-3:2024 — gravimetric efficiency and airflow resistance versus captured test-dust mass.
- ISO 16890-4:2022 — conditioning method used to determine minimum fractional test efficiency.
- ISO 29462:2022 — in-situ field testing of general ventilation filtration devices and systems where field verification is required.
Shared Engineering
- Differential Pressure
- Contaminant Loading
- Sealing
- Service Life