Aluminum Honeycomb Grease Filter

This aluminum honeycomb grease filter is designed for kitchen exhaust and oil fume pre-filtration where the filter needs to be lightweight, removable and easy to fit into an existing hood or purifier slot.

The main working part is the aluminum honeycomb core. Instead of using flat mesh layers or vertical baffle blades, the filter uses many small honeycomb channels arranged across the filter face. When oil fume passes through these channels, the air is divided into smaller flow paths. Oil mist has more chance to contact the aluminum channel walls before the air continues into the duct, fan or purifier section.

This structure makes the filter different from a baffle grease filter or a metal foam oil fume filter. It is more compact than a baffle structure and more regular in channel shape than foam media. It is often selected for range hoods, kitchen exhaust hoods, oil fume purifier inlet sections and equipment that needs a thin removable grease pre-filter.

Aluminum is commonly selected for this type of honeycomb grease filter because it keeps the panel light while still allowing the filter to be made into a rigid framed structure.

For replacement and maintenance work, weight matters. A lighter filter is easier to remove from a hood, rinse, dry and reinstall. This is especially useful when the filter needs to be cleaned regularly or when the installation position is above the cooking area.

The aluminum surface also helps the filter keep a clean metal appearance and is suitable for many kitchen ventilation applications. The final material grade, surface treatment and cleaning method should still be confirmed according to the actual project requirement.

This product should not be described as stainless steel unless the frame or material is confirmed separately. The standard positioning of this page is aluminum honeycomb grease filter.

This aluminum honeycomb grease filter is suitable for positions where the buyer needs a compact grease pre-filter rather than a heavy-duty baffle filter.

Typical use includes:

Range hood grease filter replacement

Kitchen hood pre-filter section

Oil fume purifier inlet filter

Light commercial kitchen exhaust equipment

Food service ventilation equipment

Grease pre-filtration before fan or duct

Custom oil fume filter panels for equipment manufacturers

For heavy commercial cooking lines, fire-code-controlled exhaust hoods or projects requiring listed grease filters, the required standard should be checked before ordering.

The honeycomb core creates many small, straight-through passages.

When oil fume enters the filter, the airflow is not handled as one large open stream. It is split into multiple smaller channels. Inside these channels, oil mist and grease particles can contact the aluminum walls. Part of the grease is intercepted on the channel surface, helping reduce direct grease carry-over into the downstream section.

This is different from a baffle filter. A baffle filter uses formed blades to force airflow to turn sharply, and grease then drains down along the baffle surface. A honeycomb filter uses compact channel contact. The path is more uniform and the filter face can stay relatively thin.

It is also different from metal foam. Metal foam has irregular open pores and a three-dimensional porous structure. Honeycomb media has more regular channels, making it easier to understand by size, thickness and cell structure during replacement.

Actual oil interception depends on honeycomb thickness, cell size, airflow, grease loading, installation position and cleaning condition. A fixed oil removal rate should not be written unless a matching test report is available.

1. Aluminum Honeycomb Core

The honeycomb core is the main separation area. Its channel density, thickness and opening size affect airflow resistance, grease contact area and cleaning difficulty.

A denser honeycomb may provide more contact surface, but it may also be easier to block under heavy grease loading. A more open honeycomb may be easier for airflow and cleaning, but the grease interception behavior will be different.

For this reason, honeycomb size and thickness should be confirmed according to the equipment, not selected only by appearance.

2. Aluminum Outer Frame

The outer frame keeps the honeycomb core in shape and allows the filter to fit into a hood slot or equipment track. For replacement work, the frame size is often more important than the product name.

The width, height and thickness must match the old filter or installation slot. A small mismatch may cause loose installation, bypass gaps or difficulty removing the filter during cleaning.

3. Handle or Pull Tab

Some aluminum honeycomb grease filters can be supplied with a handle or pull tab. This makes removal easier when the filter is installed inside a hood or purifier.

The handle position should be checked before production. It should face the service side and should not interfere with the filter slot.

These products can all appear in oil fume systems, but they should not be described as the same filter. The correct choice depends on hood design, airflow, grease load, cleaning method and local code requirement.

When installed in the correct position, an aluminum honeycomb grease filter can help:

Intercept part of the oil mist before it reaches the duct or purifier

Reduce direct grease carry-over to downstream equipment

Protect fans, ducts or electrostatic purifier inlet sections from heavy visible grease

Provide a removable filter layer for regular cleaning

Keep the filter panel lighter than many stainless steel structures

Match thin filter slots in range hoods or compact ventilation equipment

Support OEM equipment designs where a regular honeycomb filter panel is required

The filter should be cleaned before the honeycomb channels become heavily blocked. If grease builds up inside the channels for too long, airflow may be affected and cleaning becomes more difficult.

This product is not designed for odor removal. Odor control usually requires activated carbon or another gas-phase treatment stage. It is also not a HEPA filter and should not be used for cleanroom-grade fine particle filtration.

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