selecting the right filter media for your industrial applications

Created Wednesday 23 August 2023

Dust collection systems are an important part of any manufacturing process, so they need to be sized and designed properly. One critical design component is specifying the proper filtration media, which requires analysis of the dust in the process and all operating conditions.

Your dust collector is only as strong as its filter cartridges, which makes filter selection vital. Filter elements need to use the type of media that is appropriate for your specific application and dust. For example, your application may require media treated with coatings that promote dust release, flame retardance or conductivity.

Using the wrong media can put workers at risk or cause high pressure drop and energy costs. Inefficient filtration also can lead to dust deposits creating a risk in event of an explosion. Using the correct media creates a safer, cleaner work environment with less dust collector maintenance.

Five factors you should take into consideration about your dust and process:

Particle characteristics
Particle size
Combustibility & static electricity
Moisture level
Operating temperature

filter media types

Cellulose/Paper and Spunbond/Synthetic are the two basic filter media types most commonly used for our filter elements.

The base material of Camfil´s standard filter elements is a proprietary fibre blend of cellulose and paper, what maximises dust holding capacity and promote dust release when pulse cleaned. Camfil´s medias are developed to provide the lowest pressure drop, longest service life and highest filtration efficiencies. The media can be treated to provide different properties which allows the handling of various dust types from different industrial processes.

Camfil´s Dura-Pleat filter media is made of 100% spunbonded polyester in a pleated design that combines the best of both worlds: the high efficiency of pleated media and the versatility of synthetic materials. Filter cartridges with Dura-Pleat technology capture and release more pollutants when pulse-cleaned, resulting in a safer, cleaner work environment with less maintenance and provide lowest pressure drop. The base polyester media is treated to provide various properties such as anti-static, oil & water repellent or to handle sticky dusts.

cellulose/paper

Proprietary blend of cellulose fibres and polyester fibers for optimum dust release characteristics yielding long service life at high filtration efficiencies (colour: green). This media is used where dust is not explosive. We construct this media into our range of HemiPleat green filters.

Types of dust & fume (non explosive):

Cotton
Fibreglass
Paper
Sand incl. foundry sand
Stone & ceramic
Talc
Wood

Typcial applications:

Blasting
Grinding
Planing
Sanding
Shredding

Industries:

Ceramic & natural stone
Metalworking
Recycling
Woodworking

Proprietary blend of cellulose and polyester fibres, additionally treated with flame retardant properties. This media is used where dust is typically not explosive but in processes where sparks might be generated (colour: white). We construct this media into our range of HemiPleat flame retardant filters.

Types of dust & fume:

Iron oxids
Laser & plasma cutting fumes
Soldering fumes
Thermal spray powders
Welding fumes

Typical applications:

Blasting
Grinding
Laser cutting
Plasma cutting
Soldering
Thermal spray
Welding

Industries:

Metalworking

Proprietary blend of cellulose and polyester fibres, treated with flame retardant properties and addtionally impregnated with carbon fibres for static dissipation (colour: black). Due to the antistatic properties this media is selected when working with potentially explosive dusts. We use this media to construct our HemiPleat FR carbon range of filters.

Types of dust & fume:

Flour
Fumed silica
Paint pigments
Pharmaceutical powders
Plastic
Sugar
Thermal spray powders
Toner & carbon black

Typical applications:

Blasting
Bulk & powder handling
Mixing
Packaging
Powder paint coating
Thermal spray
Weighing

Industries:

Chemical
Food & beverage
Pharmaceutical
Metalworking

Standard Green + surface layer of nanofibre to yield the market’s most superior filtration and cleanability (colour: white/green). This media is used where dust is not explosive. We construct this media into our range of HemiPleat eXtreme green filters. The nanofibre layer helps to increase efficiency and the media is certified to dust class "M" in accordance to EN 60335-2-69. This media can help to reduce your emissions where that it is critical to your process.

Types of dust & fume (non explosive):

Copper
Cotton
Fibreglass
Paper
Sand incl. foundry sand
Stone & ceramic
Talc
Wood

Typcial applications:

Blasting
Bulk handling of powders
Crushing
Grinding
Planing
Sanding
Shredding

Industries:

Ceramic & natural stone
Chemical
Food & beverage
Metalworking
Mining
Recycling
Woodworking

Blend of cellulose and polyester fibres with a surface layer of nanofibres, additionally treated with flame retardant properties. This media is used where dust is typically not explosive but in processes where sparks might be generated (colour: white). The nanofibre layer helps to increase efficiency and the media is certified to dust class "M" in accordance to EN 60335-2-69. This media can help to reduce your emissions where that it is critical to your process. We use this media to construct our HemiPleat eXtreme flame retardant range of filters.

Types of dust & fume:

Iron oxides
Laser & plasma cutting fumes
Soldering fumes
Steel
Thermal spray powders
Welding fumes

Typical applications:

Blasting
Grinding
HVOF
Laser cutting
Plasma cutting
Soldering
Thermal spray
Welding
Wire arc

Industries:

Metalworking

Proprietary blend of cellulose and polyester fibres with an additional layer of nanofibres, treated with flame retardant properties and impregnated with carbon fibres for static dissipation (colour: black). Due to the antistatic properties and the nanofibre layer this media is selected when working with potentially explosive and very fine dusts. The nanofibre layer helps to increase efficiency and the media is certified to dust class "M" in accordance to EN 60335-2-69. This media can help to reduce your emissions where that it is critical to your process. We use this media to construct our HemiPleat eXtreme FR carbon range of filters.

Types of dust & fume:

Flour
Fumed silica
Herbicides
Paint pigments
Pharmaceutical powders
Plastic
Sugar
Thermal spray powders
Toner & carbon black

Typical applications:

Blasting
Bulk & powder handling
Central vacuum
Mixing
Packaging
Powder paint coating
Tablet coating
Thermal spray
Weighing

Industries:

Chemical
Food & beverage
Pharmaceutical
Metalworking

Light-weight spun bond polyester media with layer of nanofibre (colour: white). This media is used where dust is not explosive. We construct this media into our range of HemiPleat eXtreme synthetic filters. The nanofibre layer helps to increase efficiency and the media is certified to dust class "M" in accordance to EN 60335-2-69. This media can help to reduce your emissions where that it is critical to your process.

Types of dust & fume (non explosive):

Copper
Cotton
Fibreglass
Paper
Sand incl. foundry sand
Stone & ceramic
Talc

Typcial applications:

Blasting
Bulk handling of powders
Crushing
Land remediation
Shredding

Industries:

Ceramic & natural stone
Chemical
Metalworking
Recycling

spunbond/synthetic

Basic spunbonded polyester with no treatments, heavy-duty and durable media (colour: white). Dura-Pleat standard media combines the best of both worlds: the high efficiency of pleated media and the versatility of synthetic materials. Filter elements with Dura-Pleat technology capture and release more pollutants when pulse-cleaned, resulting in a safer, cleaner work environment with less maintenance and provide lowest pressure drop. The media is certified to dust class "M" in accordance to EN 60335-2-69. This media can help to reduce your emissions where it is critical to your process.

Types of dust & fume (non explosive):

Copper
Cotton
Fibreglass
Paper
Sand incl. foundry sand
Stone & ceramic
Talc

Typcial applications:

Blasting
Bulk handling of powders
Crushing
Cutting
Sanding
Shredding

Industries:

Ceramic & natural stone
Chemical
Food & beverage
Metalworking
Recycling

Our basic spunbonded polyester Dura-Pleat media coated with an oil and water repellent finish (colour: white).

Types of dust & fume (non explosive):

Cement
Food powders (hydrophobic)
Pharmaceutical dust
Sand incl. foundry sand
Welding fumes (oily)

Typcial applications:

Blasting
Casting
Coating
Mixing
Silo venting
Weighing
Welding

Industries:

Construction aggregates
Food & beverage
Metalworking
Pharmaceutical

The basis of this media is again our spunbonded polyester Dura-Pleat, applied with a conductive aluminised surface finish for static dissipation (colour: silver/white). Due to the antistatic properties this media is selected when working with potentially explosive and very fine dusts. The media is certified to dust class "M" in accordance to EN 60335-2-69 and can help to reduce the emissions where that it is critical to your process. We use this media to construct our range of Dura-Pleat DPA range of filter elements.

Types of dust & fume:

Flour
Food flavourings & spices
Paint pigments
Paper
Pharmaceutical powders
Plastic
Seeds
Sugar
Toner & carbon black
Wood

Typical applications:

Blasting
Bulk & powder handling
Central vacuum
Mixing
Packaging
Powder paint coating
Silo venting
Tablet coating
Weighing

Industries:

Chemical
Food & beverage
Metalworking
Pharmaceutical
Woodworking

Dura-Pleat spunbonded polyester media with a laminated PTFE membrane for very high efficiencies of fine particulate and superior dust cake release (colour: white). Due to the PTFE membrane surface layer this media is selected when working with sticky or very fine dusts or fumes (not to be used when there is oil content in the dirty air). The media is certified to dust class "M" in accordance to EN 60335-2-69 and can help to reduce the emissions where it is critical to your process. We use this media to construct our range of Dura-Pleat DPT range of filter elements.

Types of dust & fume:

Food dusts
Laser & plasma cutting fumes
Pharmaceutical dusts
Sticky dusts
Welding fumes (dry)

Typical applications:

Laser cutting
Mixing
Plasma cutting
Silo venting
Tablet coating
Welding

Industries:

Chemical
Food & beverage
Metalworking
Pharmaceutical

Spundbonded polyester media with a very smooth PTFE membrane laminated onto the surface. The carbon impregnation ensures antistatic properties when working with potentially explosive dusts (colour: grey/black). Due to the PTFE membrane surface layer this media is selected when working with sticky or very fine dusts or fumes (not to be used when there is oil content in the dirty air). The media is certified to dust class "M" in accordance to EN 60335-2-69 and can help to reduce the emissions where it is critical to your process. We use this media to construct our range of Dura-Pleat DPTC range of filter elements.

Types of dust & fume:

Food dusts
Pharmaceutical dusts
Sticky dusts
Tobacco
Toner & carbon black

Typical applications:

Compression
Mixing
Packaging
Silo venting
Spray drying
Tablet coating
Weighing

Industries:

Chemical
Food & beverage
Pharmaceutical

Dura-Pleat spunbonded polyester media which combines an aluminium coating together with oil and moisture repellent properties (colour: white/silver). Due to the antistatic properties this media is selected when working with potentially explosive and very fine or sticky dusts. The media is certified to dust class "M" in accordance to EN 60335-2-69 and can help to reduce the emissions where that it is critical to your process. We use this media to construct our range of Dura-Pleat DPOA range of filter elements.

Types of dust & fume:

Food flavourings & spices
Paint pigments
Pharmaceutical powders
Plastic
Seeds
Toner & carbon black

Typical applications:

Bulk & powder handling
Central vacuum
Mixing
Packaging
Powder paint coating
Silo venting
Tablet coating
Weighing

Industries:

Chemical
Food & beverage
Metalworking
Pharmaceutical

Spundbonded polyester media with a very smooth PTFE membrane laminated onto the surface and an aluminium coating for static disipation when working with potentially explosive dusts (not good for oil contaminated air / colour: white/silver). The media is certified to dust class "M" in accordance to EN 60335-2-69 and can help to reduce the emissions where it is critical to your process. We use this media to construct our range of Dura-Pleat DPTA range of filter elements.

Types of dust & fume:

Food dusts
Pharmaceutical dusts
Sticky dusts
Tobacco
Toner & carbon black

Typical applications:

Compression
Mixing
Packaging
Silo venting
Spray drying
Tablet coating
Weighing

Industries:

Chemical
Food & beverage
Pharmaceutical

european dust filter standard

Cartridge filters for dust and fume extraction equipment are required to meet the relevant Standard EN 60335-2-69 to the latest revision. Camfil Hemipleat Extreme and Dura-Pleat media types are all tested independently in accordance with the standard to Dust class “M”. This means they are 99.9% efficient tested with particles between 0.2 and 2 microns.