World Clean Biz
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Independent Component Reference

Vacuum Cleaner Filter

HEPA wording, color and shape are not enough—the exact part, filter position, seal and test boundary must match.

This profile separates filter function, filtration claims, airflow restrictions and model-specific compatibility so buyers can compare evidence without converting a class label into universal fit.

What this profile covers
Included
  • Pre-motor, main, cartridge, flat-pleated and exhaust filter roles
  • Official particle-class and efficiency claims with their stated test boundary
  • Part-number, model, seal, dimension and wet/dry checks
Excluded
  • Dust bags as universal substitutes for filters
  • Health or medical outcome claims
  • Unverified aftermarket interchangeability

First published 2026-08-09 · Last verified 2026-08-09

Physical resemblance, matching wattage, matching voltage, a generic family name or a seller claim does not establish compatibility. Verify the current manufacturer part number and revision, machine model and serial scope, electrical and control specification, mechanical and fluid or airflow interfaces, protection requirements and approved service documentation.

Official component referenceKärcher vacuum filter family arranged across a dark background
Official Kärcher filter overview image presented on a WCB canvas; product-family imagery does not establish compatibility. Official image source
Vacuum Cleaner Filter key facts
FactTechnical referenceScope boundary
System roleA vacuum may use multiple filters in different positionsMiele named system only.
Claim boundaryHEPA class and percentage claims require the stated method and product configurationNamed manufacturer products and their stated tests only.
Compatibility boundaryPart number and appliance model remain primary identifiersNamed official spare-parts catalogues only.

Functional boundary

Where the component sits in the larger system

This WCB flow describes documented functions, not one universal product construction.

  1. 01

    Pre-separation

    Cyclones, bags or upstream stages remove part of the load before fine filtration.

    Sources: Miele guide

  2. 02

    Motor protection

    An upstream filter reduces particle exposure at the motor inlet.

    Sources: Miele guide

  3. 03

    Main or cartridge filtration

    Pleated or cartridge media separates particles while maintaining the designed airflow path.

    Sources: Karcher filter

  4. 04

    Exhaust filtration

    A downstream filter addresses particles remaining in discharged air within the stated class and seal boundary.

    Named official product ranges.Sources: Dyson V15, Miele catalog, Nilfisk accessories

Architecture families

Different component architectures solve different constraints

No architecture is a universal winner, and a family label is not a replacement-part specification.

Kärcher Safety and HEPA flat-pleated filters
Official technical image

Official Kärcher Safety/HEPA flat-pleated filter image on a WCB canvas, showing one manufacturer's family boundaries.

How to use this visualUse the photographed family only to understand documented construction context; do not infer exact product fit.

Official image source

Cartridge or cylindrical filter

Principle
Pleated media is formed around a supporting core and sealed into a model-specific frame.
Application boundary
Common in wet/dry and cartridge-based vacuum designs.
Benefits
  • Large media area in a compact envelope
  • Replaceable assembly
Limitations
  • Dimensions and end seals vary
  • Wet-use permission is product-specific
Buyer check
Match exact accessory number, media, dimensions, seals and wet/dry declaration.

Sources: Karcher filter

Flat-pleated filter

Principle
Pleated media is packaged in a flat frame or cassette.
Application boundary
Kärcher separates Safety/HEPA, Ultimate, Wet & Dry and Dry families.
Benefits
  • Compact cassette geometry
  • Application-specific media families
Limitations
  • Color does not prove media or fit
  • Class claims are configuration-specific
Buyer check
Verify part number, dust class, media, filter position and machine list.

Sources: Karcher filter

Pre-motor and exhaust pair

Principle
Separate upstream and downstream filters protect the motor and manage discharged particles.
Application boundary
Cordless and canister systems may use distinct filter positions and part numbers.
Benefits
  • Different functions can be optimized separately
  • Service intervals can be documented by position
Limitations
  • Filters may look similar while serving different positions
  • Omitting one stage changes system performance
Buyer check
Confirm every required filter position and exact appliance model.

Named Dyson and Miele systems.Sources: Dyson V15, Miele guide

Specification dictionary

What component specifications do—and do not—mean

Vacuum Cleaner Filter specification dictionary
SpecificationPurchasing meaningReporting boundaryComparison caution
Filter positionDefines whether the part protects the motor, performs main separation or filters exhaustUse the manufacturer's service terminologyDo not substitute an exhaust filter for a pre-motor part.
Filtration class or efficiencyDescribes a result under a named standard or manufacturer methodClass, particle size, percentage, method and configuration must stay togetherDo not compare percentages with missing test boundaries.
Pressure dropInfluences airflow, motor load and service indicatorsReport at the stated airflow and loading conditionHigher filtration wording does not automatically mean better system performance.
Media and wet/dry useControls moisture tolerance, cleaning method and applicationPaper, fleece, glass fibre and other media need exact manufacturer guidanceDo not wash or wet a filter unless explicitly permitted.
Seal and dimensionsDefine bypass leakage and physical installationFrame, gasket, latch and orientation are compatibility fieldsA small seal gap can invalidate a filtration claim.
Service intervalControls maintenance and replacement planningWash, dry, replace and alarm instructions are model-specificDo not reuse until the manufacturer-stated dry condition is met.
Vacuum Cleaner Filter performance reporting boundary diagram
WCB explanatory visual

WCB reporting-boundary map: retain the stated unit, operating point, test method and product scope before comparing values.

How to use this visualKeep every reported value inside its stated unit, operating point, test method and product scope.

Diagram sourcesKarcher filter, Karcher hepa, Dyson V15, Miele guide

Filter position evidence

Use the exact source and current model documentation; field labels and test points vary by manufacturer.Sources: Karcher filter

Filtration class or efficiency evidence

Use the exact source and current model documentation; field labels and test points vary by manufacturer.Sources: Karcher hepa

Pressure drop evidence

Use the exact source and current model documentation; field labels and test points vary by manufacturer.Sources: Dyson V15

Media and wet/dry use evidence

Use the exact source and current model documentation; field labels and test points vary by manufacturer.Sources: Miele guide

Seal and dimensions evidence

Use the exact source and current model documentation; field labels and test points vary by manufacturer.Sources: Karcher filter

Service interval evidence

Use the exact source and current model documentation; field labels and test points vary by manufacturer.Sources: Karcher hepa

Evidence + WCB interpretation

Application matrix

Official application language narrows the review; it does not prove exact product fit.

Kärcher Ultimate flat-pleated filter
Official technical image

Official Kärcher Ultimate flat-pleated filter image on a WCB canvas; media color is not a compatibility identifier.

How to use this visualTreat the photographed application as source context only. Verify the actual operating point, duty, envelope and approvals.

Official image source

Cordless vacuum

Named Dyson V15 variants only.Sources: Dyson V15, Dyson support

WCB assessment

Requires exact model, filter position, wash/dry instructions and current spare-part number.

Limitations
No exact machine, runtime, safety or compatibility approval is established by application-level evidence.
Buyer action
Match the exact component, machine, operating profile and current manufacturer documentation.

Household canister vacuum

Named Miele system and accessories.Sources: Miele guide, Miele catalog

WCB assessment

Bag, motor-protection and exhaust stages must be evaluated as one documented system.

Limitations
No exact machine, runtime, safety or compatibility approval is established by application-level evidence.
Buyer action
Match the exact component, machine, operating profile and current manufacturer documentation.

Commercial or wet/dry vacuum

Named Kärcher and Nilfisk products.Sources: Karcher filter, Nilfisk accessories

WCB assessment

Media, wet-use permission, dust class, seal and machine range must all be documented.

Limitations
No exact machine, runtime, safety or compatibility approval is established by application-level evidence.
Buyer action
Match the exact component, machine, operating profile and current manufacturer documentation.

Compatibility gate

Family similarity is not replacement compatibility

Physical resemblance, group ownership, generic family names, seller claims, and matching wattage do not establish compatibility.

Vacuum Cleaner Filter compatibility approval gate
WCB explanatory visual

WCB compatibility gate: an undocumented field stops approval rather than becoming a probable match.

How to use this visualPass every relevant gate using current manufacturer documents before approving a substitute, service part or design change.

Diagram sourcesKarcher filter, Karcher hepa, Dyson V15, Miele guide

01

Exact filter identity

Required match
Manufacturer part number and current revision
Why it matters
Family name or HEPA wording does not identify a part.
Required action
Record and approve manufacturer part number and current revision from current official documentation.

Exact product and machine documentation controls.Sources: Karcher filter

02

Appliance scope

Required match
Exact model, variant and serial range
Why it matters
Similar models can use different frames or filter positions.
Required action
Record and approve exact model, variant and serial range from current official documentation.

Exact product and machine documentation controls.Sources: Karcher hepa

03

Filter position

Required match
Pre-motor, main, cartridge or exhaust
Why it matters
Different positions perform different system roles.
Required action
Record and approve pre-motor, main, cartridge or exhaust from current official documentation.

Exact product and machine documentation controls.Sources: Dyson V15

04

Media and claim

Required match
Material, class, efficiency, method and configuration
Why it matters
A class label without the test boundary is incomplete.
Required action
Record and approve material, class, efficiency, method and configuration from current official documentation.

Exact product and machine documentation controls.Sources: Miele guide

05

Mechanical seal

Required match
Dimensions, gasket, frame, latch and orientation
Why it matters
Bypass leakage can defeat the intended filtration path.
Required action
Record and approve dimensions, gasket, frame, latch and orientation from current official documentation.

Exact product and machine documentation controls.Sources: Karcher filter

06

Service condition

Required match
Dry/wet permission, wash method, drying and replacement interval
Why it matters
Incorrect cleaning can damage media or increase restriction.
Required action
Record and approve dry/wet permission, wash method, drying and replacement interval from current official documentation.

Exact product and machine documentation controls.Sources: Karcher hepa

Service boundary

Failure signals and required checks

Symptoms narrow inspection work; they are not a remote diagnosis or repair instruction.

Reduced suction or airflow

WCB inspection categories
  • Loaded filter
  • Incorrectly dried or installed filter
  • Blocked air path

Safety boundaryDisconnect power before opening the appliance.

Service actionFollow the exact model's filter inspection and maintenance procedure.

WCB inspection categories only; not a diagnosis for a specific machine.Sources: Karcher filter

Dust bypass or visible leakage

WCB inspection categories
  • Damaged gasket
  • Wrong part or orientation
  • Cracked frame or housing

Safety boundaryDo not continue use where hazardous dust containment is required.

Service actionConfirm the seal path and replace only with the approved exact part.

WCB inspection categories only; not a diagnosis for a specific machine.Sources: Karcher hepa

Odour, moisture or filter damage

WCB inspection categories
  • Unapproved washing
  • Operation with wet media
  • Chemical or heat exposure

Safety boundaryAvoid handling contaminated media without the required controls.

Service actionUse manufacturer cleaning, drying and disposal instructions.

WCB inspection categories only; not a diagnosis for a specific machine.Sources: Dyson V15

Representative, not exhaustive

Official representative product families

These rows document manufacturer-published families. They do not establish a customer, OEM, factory or compatibility relationship.

Representative official component families
ManufacturerFamilyArchitectureDeclared applicationDistinguishing specificationsScope
KärcherHEPA surface filter 6.904-364.0H14 exhaust/surface filterNamed dry vacuum cleanersH14 glass fibre · 99.995% stated separationUK official accessory page
KärcherKFI 4410Flat-pleated filterNamed wet/dry vacuum modelsOfficial part 2.863-005.0 · Model list requiredInternational official page
Dyson970013-02Model-specific filter assemblyNamed V15 cordless modelsOfficial spare-part number · Exact model scopeUS official spare-parts page
Dyson970013-03Model-specific filter assemblyNamed V15 cordless modelsOfficial spare-part number · Variant-specific listingUS official spare-parts page
MieleSF-HA 50-1HEPA AirClean exhaust filterCompatible Miele canister modelsOfficial accessory family · Model compatibility requiredUK official catalogue
MieleSF-AA 50-1Active AirClean exhaust filterCompatible Miele canister modelsOfficial accessory family · Model compatibility requiredUK official catalogue
Nilfisk107409854HEPA 14 filterNamed Nilfisk vacuum rangeOfficial part number · HEPA 14 listingGlobal official accessories page

WCB decision support

Procurement decision matrix

WCB assessment

Cordless vacuum

Verify
Exact filter identity, Appliance scope, Filter position, Media and claim
Comparison trap
Approving from one headline value, family label or physical appearance.
Assessment
Requires exact model, filter position, wash/dry instructions and current spare-part number.
Limitations
The reviewed sources do not establish fit to an unnamed machine or duty profile.
Buyer action
Build a signed comparison sheet using current manufacturer documentation.

Named Dyson V15 variants only.Sources: Dyson V15, Dyson support

WCB assessment

Household canister vacuum

Verify
Exact filter identity, Appliance scope, Filter position, Media and claim
Comparison trap
Approving from one headline value, family label or physical appearance.
Assessment
Bag, motor-protection and exhaust stages must be evaluated as one documented system.
Limitations
The reviewed sources do not establish fit to an unnamed machine or duty profile.
Buyer action
Build a signed comparison sheet using current manufacturer documentation.

Named Miele system and accessories.Sources: Miele guide, Miele catalog

WCB assessment

Commercial or wet/dry vacuum

Verify
Exact filter identity, Appliance scope, Filter position, Media and claim
Comparison trap
Approving from one headline value, family label or physical appearance.
Assessment
Media, wet-use permission, dust class, seal and machine range must all be documented.
Limitations
The reviewed sources do not establish fit to an unnamed machine or duty profile.
Buyer action
Build a signed comparison sheet using current manufacturer documentation.

Named Kärcher and Nilfisk products.Sources: Karcher filter, Nilfisk accessories

Engineering validation

Checks before approval or substitution

01

Exact filter identity

Family name or HEPA wording does not identify a part.

Required actionApprove manufacturer part number and current revision before release.

Exact project, component and machine scope only.Sources: Karcher filter

02

Appliance scope

Similar models can use different frames or filter positions.

Required actionApprove exact model, variant and serial range before release.

Exact project, component and machine scope only.Sources: Karcher hepa

03

Filter position

Different positions perform different system roles.

Required actionApprove pre-motor, main, cartridge or exhaust before release.

Exact project, component and machine scope only.Sources: Dyson V15

04

Media and claim

A class label without the test boundary is incomplete.

Required actionApprove material, class, efficiency, method and configuration before release.

Exact project, component and machine scope only.Sources: Miele guide

05

Mechanical seal

Bypass leakage can defeat the intended filtration path.

Required actionApprove dimensions, gasket, frame, latch and orientation before release.

Exact project, component and machine scope only.Sources: Karcher filter

Standards boundary

Safety and performance references

Show 3 safety and performance references

EN 1822:2019

JurisdictionEurope

Version2019

ApplicabilityReferenced by Miele for named HEPA filter performance; verify the exact product and test configuration.

Standard scope only; no product certification is inferred.Sources: Miele guide

ASTM F3150

JurisdictionUnited States

VersionCurrent edition must be checked

ApplicabilityDyson references ASTM F3150 for whole-machine filtration claims; this is not a universal filter-only rating.

Standard scope only; no product certification is inferred.Sources: Dyson faq

IEC 62885-2

JurisdictionInternational

VersionCurrent edition must be checked

ApplicabilityDry-vacuum performance methods apply at appliance level; they do not turn a spare filter into a universal fit.

Standard scope only; no product certification is inferred.Sources: IEC 62885 2

Technical developments

Documented changes affecting design or procurement

Show 2 documented changes

  1. WCB reviews Miele's EN 1822:2019 reference

    The reviewed Miele guidance identifies the standard for named filter claims.

    Named publication or reviewed official portfolio only.Sources: Miele guide

  2. Official catalogues retain model-specific filter mapping

    Reviewed Dyson, Miele, Nilfisk and Kärcher pages continue to list filters by part and appliance scope.

    Named publication or reviewed official portfolio only.Sources: Dyson V15

Audit trail

Primary and technical sources

Last material modification 2026-08-09 · Last verified 2026-08-09

Show all 10 sources
  1. manufacturer

    Filters for vacuum cleaners

    Kärcher

    Accessed 2026-08-09

    Open source
  2. manufacturer

    HEPA surface filter 6.904-364.0

    Kärcher

    Accessed 2026-08-09

    Open source
  3. manufacturer

    Flat pleated filter KFI 4410

    Kärcher

    Accessed 2026-08-09

    Open source
  4. manufacturer

    Dyson V15 Detect spare parts

    Dyson

    Accessed 2026-08-09

    Open source
  5. manufacturer

    Dyson V15 Detect support

    Dyson

    Accessed 2026-08-09

    Open source
  6. manufacturer

    Spare parts frequently asked questions

    Dyson

    Accessed 2026-08-09

    Open source
  7. manufacturer

    Vacuum cleaner bags and filters

    Miele

    Accessed 2026-08-09

    Open source
  8. manufacturer

    Vacuum cleaner bags and filters guide

    Miele

    Accessed 2026-08-09

    Open source
  9. manufacturer

    Vacuum cleaner accessories

    Nilfisk

    Accessed 2026-08-09

    Open source
  10. standard

    IEC 62885-2 dry vacuum cleaners

    IEC

    Accessed 2026-08-09

    Open source