Coolant & Metalworking Fluids Mist Eliminators

Coolant mist eliminator panel of experts write product reviews, comparisons and articles on coolant mist polution control

Industry experts compare coolant mist eliminators.

Coolant Mist Eliminator Product Reviews

Synthetic coolant mist eliminators, semi-synthetic coolant mist eliminators, water based coolant mist eliminators oil smoke mist eliminators and oil mist eliminators may be used in a variety of processes collecting cutting fluids mist and smoke that otherwise spreads everywhere, creating an unhealthy and hazardous environment. Of the three currently used mist eliminator technologies, based on your specific coolant, process and materials, you can generally narrow down your choice to one technology. From there, a specialist can determine the necessary airflow and a few other factors that dictate which of the many mist eliminators is your best choice. Read Article "Choosing Technology"

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Product

Pros

Considerations

Features

Application

MSRP

Absolent ODR Coolant Mist Eliminator

• Versatile mounting options.

• No need to clean disposable filters.

• Consistent efficiency

• Requires periodic costly filter replacement and disposal.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• 1180-4700 CFM

• Media filters

• 2 stage pre-filter

• Dirty filter gauge

• Absolute filter

• Optional pump, fan, ducting, hood, etc equipment

• source capture w/ducting

• smoke

• oil mist

Not Published

Research more about this oil mist eliminator at Absolent's web site.

Absolent ODF Mist Eliminators
Absolent coolant mist eliminator

• Versatile mounting options.

• No need to clean disposable filters.

• Consistent efficiency

• Requires periodic costly filter replacement and disposal.

• 355-4700 CFM

• Media filters

• Pressure gauge

• Pipe connections

• Absolute filter

• Optional pump, fan, ducting, hood, etc equipment

• source capture w/ducting

• oil mist

• vapors

• VOCs

Not Published

Learn more about this oil mist eliminator at Absolent's web site.

Aercology E-Type Coolant Mist Eliminator
Aercology e-type eliminator

• Small size.

• No need to clean disposable filter liners.

• Requires frequent maintenance to avoid downtime.

• Vibration from spinning drum may reduce machine tool precision.

• Requires periodic filter liner replacement and disposal.

• 100-900 CFM

• Centrifugal separator

• Optional HEPA

• Coated perforated rotating drum

• Collection chamber

• Drain system

• direct machine mount source capture w/ducting

• smoke

• clean synthetic mist

• clean oil mist

• not for mist with heavy particulate

Not Published

Read more about this oil mist eliminator at Aercology's web site.

Aercology Mini- Mist Collection System
Aercology mist collection system

• Small size.

• No need to clean disposable filters.

• Requires periodic filter replacement and disposal.

• Airflow & efficiency vary throughout filter life.

• No airflow control, only ON/OFF.

• Small applications only.

• 400-600 CFM

• Media filters

• Dirty filter gauge

• direct machine mount source capture

• light duty applications

• smoke

• mist

Not Published

Research more about this oil mist eliminator at Aercology's web site.

Aget Mistkop® Coolant Mist Eliminator
aget mist kop

• Small size.

• Disposable filters.

• Requires periodic filter replacement and disposal.

• Airflow & efficiency vary throughout filter life.

• Unfiltered contaminants pass through blower, causing maintenance concerns.

• 300-2200 CFM

• Media filters

• Optional smoke after filter

• optional HEPA

• Optional exhaust shell for exterior discharge

• ducted source capture

• smoke

• mist

Not Published

Research more about this oil mist eliminator at Aget's web site.

Aget Mistkop® Inverted Mist Eliminators
Aget mist eliminator in chrome.

• Small size.

• No need to clean disposable filters.

• Requires periodic filter replacement and disposal.

• Airflow & efficiency vary throughout filter life.

• Unfiltered contaminants pass through blower, causing maintenance concerns.

• 300-1800 CFM

• Media filters

• Dirty filter gauge

• machine or floor mount ducted source capture

• smoke

• mist

Not Published

Research more about this oil mist eliminator at Aget's web site.

Air Quality Engineering F61 AutoClean Mist Eliminator
mist eliminator in black

• Self washing-no filters to replace.

• Infinitely stackable modules.

• Keeps HVAC coils clean.

• Central HVAC ducted only.

• Requires plumbing for self wash.

• Requires blower.

• 1000-8000 CFM (blower not included)

• Optional carbon filters

• Programmable self washing

• Integrates into existing HVAC

• Electro-static filters

• Central HVAC ducted capture

• mist

• smoke

• fumes

• soot

• light dust

• kitchen exhaust

$4,513-$4,908

Learn more about this oil mist eliminator.

Air Quality EngineeringF62-B Coolant Mist Eliminators
fluid mist eliminator

• COANDA airflow pattern established by one centrally located air cleaner.

• No costly filter replacement.

• Consistent airflow & efficiency, compared to media filters.

• Cannot add more air cleaners in same area to reinforce airflow.

• ESP filters require periodic cleaning.

• 1900-2500 CFM

• Electro-static filters

• Test button

• System lamp

• Dirty filter gauge

• ambient or hooded capture

• mist

• smoke

• soot

• vapors

• VOCs

$4,513-$4,908

Read more about this oil mist eliminator.

Air Quality EngineeringF66 Coolant Mist Eliminator

• Can produce different airflow patterns with multiple air cleaners.

• No costly filter replacement.

• Consistent airflow & efficiency, compared to media filters.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• ESP filters require periodic cleaning.

• Not for source capture of cast iron or heavy ferrous metals.

• Up to 2600 CFM

• Electro-static filters

• Motor starter & control

• 4-way adjustable louvers

• ambient or ducted capture

• coolant mist

• smoke

• fumes

• soot

• light dust

$4,828-$6,904

Research more about this coolant mist eliminator.

Air Quality EngineeringF72 Cutting Fluid Mist Eliminators
F72 mist eliminators

• Infinitely stackable modules.

• Keeps HVAC coils clean

• No costly filter replacement.

• Central ducted only.

• Requires blower.

• ESP filters require periodic cleaning.

• 1000-4000 CFM (blower not included)

• Integrates into existing HVAC

• Electro-static filters

• central ducted capture

• mist

• smoke

• fumes

• soot

• light dust

• kitchen exhaust

$6,813-$7,727

Learn more about this oil smoke mist eliminator.

Air Quality EngineeringF73 Fluid Mist Eliminator
F73 mist eliminator

• Can produce different airflow patterns with multiple air cleaners.

• No costly filter replacement.

• Powerful.

• Consistent airflow & efficiency, compared to media filters.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Very large and loud.

• ESP filters require periodic cleaning.

• Not for source capture of cast iron or heavy ferrous metals.

• Up to 6000 CFM

• Electrostatic filters

• 4-way adjustable exhaust louvers

• ambient or ducted capture

• oil mist

• smoke

• fumes

• soot

• light dust

$6,813-$7,727

Learn more about this oil smoke mist eliminator.

Air Quality EngineeringM33O Mist Eliminators
coolant mist eliminators

• Filter washing not required.

• Small footprint takes little floor space.

• Requires periodic filter replacement and disposal.

• Limited mounting options - floor only (7 ft tall).

• Airflow & efficiency vary throughout filter life.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Up to 1300 CFM

• Media filters

• Dirty filter gauge

• Indicator light

• two 8" collars for ducting

• Sump kit

• ducted source capture

• coolant mist

• smoke

• fumes

• soot

• vapors

• VOCs

$2,729-$2,965

Read more about this oil mist eliminator.

Air Quality EngineeringM66O Metalworking Fluid Mist Eliminator
AQE m66O mist eliminator

• Filter washing not required.

• Small footprint takes little floor space.

• Requires periodic filter replacement and disposal.

• Limited mounting options - floor only (7 ft tall).

• Airflow & efficiency vary throughout filter life.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Up to 4400 CFM

• Media filters

• Dirty filter gauge

• Indicator light

• two 8" collars for ducting

• Sump kit

• ducted source capture

• coolant mist

• smoke

• fumes

• soot

• vapors

• VOCs

$3,575-$5,014

Read more about this oil mist eliminator.

Air Quality EngineeringM66 Mist Eliminators
M66 mist eliminator

• Filter washing not required.

• Can produce different airflow patterns with multiple air cleaners.

• Requires periodic costly filter replacement and disposal.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Airflow & efficiency vary throughout filter life.

• Up to 3225 CFM

• Media filters

• Dirty filter gauge

• Indicator light

• ambient or ducted capture

• coolant mist

• smoke

• fumes

• soot

• light dust

• vapors

• VOCs

$2,914-$4,529

Research more about this coolant mist eliminator.

Air Quality EngineeringM73 Fluid Mist Eliminator
M73 mist eliminator

• Can produce different airflow patterns with multiple air cleaners.

• Filter washing not required.

• Powerful airflow while filters are relatively clean.

• Requires periodic costly filter replacement and disposal.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Airflow & efficiency vary throughout filter life.

• Up to 6000 CFM

• Media filters

• Dirty filter gauge

• 400 sq ft of media

• 4-way adjustable exhaust louvers

• Motor starter and control

• ambient or ducted capture

• coolant mist

• smoke

• fumes

• soot

• light dust

• vapors

• VOCs

$4,436-$6,146

Learn more about this oil smoke mist eliminator.

Air Quality Engineering
MistBuster 500
Air quality engineering mist buster

• No costly filter replacement.

• Consistent airflow & efficiency, compared to media filters.

• Most effective at low airflow - uses little electricity.

• Easy source capture install.

• Versatile mounting options.

• Small size.

• Fluid savings: drains coolant back into machine

• Practically vibration free

• ESP filters require periodic cleaning.

• Small applications only.

• Not for source capture of cast iron or heavy ferrous metals.

• Up to 500 CFM

• Up to 2 ESP filters

• Optional HEPA after filter

• Motor starter and control: infinitely adjustable speed dial

• Synthetic, water or oil based coolant

• direct mount to machine or ducted capture

• Small applications - usually one unit per machine tool

• coolant mist

• smoke

• fumes

$2,022

Read more about this oil mist eliminator.

Air Quality Engineering MistBuster Infinity
mistbuster infinity mist eliminator

• Easy source capture install.

• Versatile mounting options.

• Small size.

• 2000 hour average filter life (8 hour shift for 1 year)

• Filter washing not required.

• Requires filter replacement about 1 or twice a year, depending on use.

• Airflow & efficiency vary throughout filter life.

• Up to 1000 CFM

• Media filters

• Dirty filter gauge

• Motor starter and control: infinitely adjustable speed dial

• Synthetic, water or oil based coolant

• direct mount to machine or ducted capture

• high density metal particles that are not safe for electrostatic (cast iron, cast aluminum, tungsten, etc)

• coolant mist

• smoke

• fumes

$3,300

Research more on this heavy metal coolant mist eliminator.

Air Quality Engineering MistBuster Quad
AQE mist buster quad

• No costly filter replacement.

• Consistent airflow & efficiency, compared to media filters.

• Versatile mounting options.

• Small size.

• Fluid savings: drains coolant back into machine

• Practically vibration free

• ESP filters require periodic cleaning.

• Not for source capture of cast iron or heavy ferrous metals.

• Up to 1250 CFM

• Up to 4 ESP filters

• Optional HEPA after filter

• Motor starter and control: infinitely adjustable speed dial

• Synthetic, water or oil based coolant

• direct mount to machine or ducted capture

• large or semi-enclosed machine centers

• multiple machine centers

• coolant mist

• smoke

• fumes

$3,404

Learn more about this oil smoke mist eliminator.

Airflow Systems 2400 VOM Coolant Mist Eliminators
Airflow systems eliminator

• Filter washing not required.

• Versatile mounting options.

• Small footprint takes little floor space.

• Requires periodic costly filter replacement and disposal.

• Airflow & efficiency vary throughout filter life.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• 2400-2800 CFM

• media filters

• Optional silencer

• HEPA option

• Other filter options

• ducted source capture

• mist

• smoke

Not Published

Read more about this coolant mist eliminator at Airflow's web site.

Airflow Systems Mist-Pac
Airflow systems mist eliminator

• Filter washing not required.

• Versatile mounting options.

• Small footprint takes little floor space.

• Requires periodic costly filter replacement and disposal.

• Airflow & efficiency vary throughout filter life.

• Handles small applications only.

• 450-600 CFM

• media filters

• Optional dirty filter gauge

• Smoke filter option

• Built in silencer

• ducted source capture

• mist

• smoke

Not Published

Research more about this mist eliminator at Airflow's web site.

Donaldson Torit MHP-1 Mist Eliminator
Donaldson coolant mist eliminator

• Can handle continuous heavy mist loading

• Filter washing required between costly filter replacements.

• Airflow & efficiency vary throughout filter life.

• Not for mist with heavy particulate.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• 1000-4000 CFM

• Media filters

• Optional HEPA after filter

• Dirty filter gauge

• Optional pre-filters

• ducted capture

• moderate airflow w/heavy mist loading

• multiple machine centers

• oil mist

• water based coolant mist

• synthetic coolant mist

• light smoke

• light particles

Not Published

Read more about this oil smoke mist eliminator Donaldson's web site.

Donaldson Torit MDV Coolant Mist Eliminators

• Filter washing not required.

• Requires periodic costly filter replacement and disposal.

• Limited mounting options - floor only.

• Airflow & efficiency vary throughout filter life.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• 1000-6000 CFM

• Media filters

• Optional HEPA after filter

• Dirty filter gauge

• Optional pre-filters

• ducted capture

• oil mist

• water based coolant mist

• synthetic coolant mist

• smoke

• light dust

Not Published

Research more about this oil smoke mist eliminator at Donaldson's web site.

Royal FilterMist
Royal FilterMist eliminators

• Very small - takes almost no space

• Fluid savings: drains coolant back into machine.

• Versatile mounting options.

• Requires electrician to install.

• Several parts require frequent maintenance.

• Requires periodic replacement of disposable drum pads.

• Motor starter not included.

• Vibration from spinning drum may reduce machine tool precision.

• 275-1200 CFM

• centrifugal separator

• Various pre & post filters

• Optional noise attenuator

• Various mounting options

• Optional maintenance kit

• direct mount to machine or ducted capture

• coolant mist

• dry smoke

$1,380-$3,240

Learn more on this mist eliminator at Royal's web site.

Royal Stainless Steel FilterMist Mist Eliminators
Royal Filter Mist

• Very small - takes almost no space.

• Fluid savings: drains coolant back into machine.

• Versatile mounting options.

• Stainless steel parts resist corrosion.

• Requires electrician to install.

• Several parts require frequent maintenance.

• Requires periodic replacement of disposable drum pads.

• Motor starter not included.

• Vibration from spinning drum may reduce machine tool precision.

• 275-1200 CFM

• centrifugal separator

• Various pre & post filters

• Optional noise attenuator

• Various mounting options

• Optional maintenance kit

• direct mount to machine or ducted capture

• coolant mist

• dry smoke

• aqueous parts washers with caustic soap

• food processing oil spray

$2,750-$3,850

Research more on this mist eliminator at Royal's web site.

Trion Mini M.E. Mist Eliminator
coolant mist eliminator

• Superior electronic cell design reduces downtime.

• No costly filter replacement.

• Consistent airflow & efficiency, compared to media filters.

• Versatile mounting options.

• Small size.

• Fluid savings: drains coolant back into machine.

• Practically vibration free.

• Not for source capture of cast iron or heavy ferrous metals.

• ESP filters require periodic cleaning.

• Up to 650 CFM

• 2 ESP filters standard

• Optional carbon after filter

• Optional HEPA after filter

• Motor starter and control: infinitely adjustable speed dial

• Can wire to machine control for automatic operation

• Synthetic, water or oil based coolant

• direct mount to machine or ducted capture

• Small to medium applications

• coolant mist

• smoke

• fumes

Under $3,000

Read more on this mist eliminator.

Trion MP2400M Coolant Mist Eliminator
Trion MP2400M mist eliminator

• Filter washing not required.

• Versatile mounting options.

• Can wire to machine control for automatic operation

• Requires periodic costly filter replacement and disposal.

• Airflow & efficiency vary throughout filter life.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Up to 2400 CFM

• media filters

• Optional HEPA after filter

• Synthetic, water or oil based coolant

• Control machine mounted or remote

• ducted source capture

• coolant mist

• smoke

• fumes

Research more on this oil mist eliminator.

Trion T1300 Mist Eliminators

• Superior electronic cell design reduces downtime.

• Choose ambient capture, inline w/central HVAC ducts, or source capture ducts independent from HVAC.

• Various optional after-filters.

• No costly filter replacement.

• Consistent airflow & efficiency, compared to media filters.

• Not for source capture of cast iron or heavy ferrous metals.

• Large size w/limited mounting options

• ESP filters require periodic cleaning.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Up to 1300 CFM

• ESP filters

• Optional HEPA after filter

• Synthetic, water or oil based coolant

• Optional adorber section

• Optional bag filters

• Motor upgrades

• Optional carbon post filter

• ducted capture

• background ambient

• HVAC

• mist

• smoke

• fumes

• soot

• light dust

• odor

• vapors

• VOCs

$3,342

Learn more on this coolant mist eliminator.

Trion T2600 Mist Eliminator

• Superior electronic cell design reduces downtime.

• Choose ambient capture, inline w/central HVAC ducts, or source capture ducts independent from HVAC.

• Various optional after-filters.

• No costly filter replacement.

• Consistent airflow & efficiency, compared to media filters.

• Not for source capture of cast iron or heavy ferrous metals.

• Large size w/limited mounting options

• ESP filters require periodic cleaning.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Up to 1300 CFM

• 2 ESP cells w/single, double, or triple pass filters

• Optional HEPA after filter

• Synthetic, water or oil based coolant

• Optional adorber section

• Optional bag filters

• Motor upgrades

• Optional carbon post filter

• ducted capture

• background ambient

• HVAC

• mist

• smoke

• fumes

• soot

• light dust

• odor

• vapors

• VOCs

$5,286

Read more on this oil smoke mist eliminator.

Trion T5200 Coolant Mist Eliminators

• Superior electronic cell design reduces downtime.

• Choose ambient capture, inline w/central HVAC ducts, or source capture ducts independent from HVAC.

• Various optional after-filters.

• No costly filter replacement.

• Consistent airflow & efficiency, compared to media filters.

• Not for source capture of cast iron or heavy ferrous metals.

• Large size w/limited mounting options

• ESP filters require periodic cleaning.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Up to 5200 CFM

• 4 ESP cells w/single, double, or triple pass filters

• Optional HEPA after filter

• Synthetic, water or oil based coolant

• Optional adorber section

• Optional bag filters

• Motor upgrades

• Optional carbon post filter

• ducted capture

• background ambient

• HVAC

• mist

• smoke

• fumes

• soot

• light dust

• odor

• vapors

• VOCs

$9,719

Research more on this oil mist eliminator.

Trion VOMP 600 Mist Eliminator

• Superior electronic cell design reduces downtime.

• Versatile mounting options.

• Can wire to machine control for automatic operation

• Consistent airflow & efficiency, compared to media filters.

• Versatile mounting options.

• Small footprint takes little floor space.

• ESP filters require periodic cleaning.

• Not for source capture of cast iron or heavy ferrous metals.

• 300-800 CFM

• ESP filter

• Optional HEPA after filter

• Synthetic, water or oil based coolant

• Optional adorber section

• Optional bag filters

• Motor upgrades

• Optional carbon post filter

• ducted capture

• mist

• smoke

• fumes

• soot

• light dust

$2,840

Learn more about this coolant mist eliminator.

United Air Specialists Dust Hog® F-Series Mist Eliminators **

• Filter washing not required.

• Comes with legs & hanger bracket.

• Airflow & efficiency vary throughout filter life.

• Requires periodic costly filter replacement and disposal.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• 1250-7000 CFM

• Media filter

• Optional HEPA after filter

• Synthetic, water or oil based coolant

• ducted capture

• mist

• smoke

• fumes

• soot

• light dust

Not published

Read more about this oil smoke mist eliminator at United Air Specialists' web site.

United Air Specialists Smog Hog® PSH Mist Eliminators **

• Consistent airflow & efficiency, compared to media filters.

• Self washing-no filters to replace.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Not for source capture of cast iron or heavy ferrous metals.

• 750-40,000 CFM

• ESP filters

• Preconditions temp & humid.

• Self washing

• custom built options

• ducted capture

• hot organic vapors

• industrial cooking

• mist

• smoke

• fumes

Not published

Research more about this oil mist eliminator at United Air Specialists' web site.

United Air Specialists Smog Hog® SHN/SG Mist Eliminators **

• Consistent airflow & efficiency, compared to media filters.

• Variety of mounting options.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• Not for source capture of cast iron or heavy ferrous metals.

• 400-9000 CFM

• ESP filters

• custom built options

• ducted or ambient capture

• mist

• smoke

• fumes

• dust

Not published

Learn more about this coolant mist eliminator at United Air Specialists' web site.

United Air Specialists VCC Coolant Cat™ Mist Eliminators **

• Filter washing not required.

• Variety of mounting options.

• Airflow & efficiency vary throughout filter life.

• Requires periodic costly filter replacement and disposal.

• Source capture for multiple machines requires extensive ductwork and air balancing.

• 1000-1500 CFM

• Media filter

• Optional HEPA

• Optional carbon filter

• Synthetic, water or oil based coolant

• ducted capture

• mist

• smoke

• fumes

• soot

• light dust

Not published

Read more about this oil smoke mist eliminator at United Air Specialists' web site.

Choosing Coolant Mist Eliminator Technology

by Rod Yarbrough

From the various manufacturers of mist eliminators, there are three distinct filtration technologies used to collect coolant mist and smoke. There is the electrostatic precipitator, media filtration, and the centrifugal separator. Electrostatic precipitation uses two stages, an ionizer that gives the pollutant an electrostatic charge and a collection cell that uses oppositely charged plates to pull the pollution out of the air stream. Filter media uses a conventional air filter made of tightly woven fibers (media) that blocks and catches contaminants as the air stream passes through the media. Centrifugal separators have a spinning chamber that acts as a blower, sucking coolant mist into it. Heavier droplets fall to the outside walls of the chamber where they pass through holes into another chamber and drain out. Lighter mist passes out of the system. Both electrostatic and media have their advantages in different applications, but I suggest you stay clear of centrifugal coolant separators, regardless your application.

Oil and Synthetic Mist Collection

In choosing technology, most experts agree your first choice should be electrostatic precipitation. It is the most efficient coolant mist eliminator technology for oil, synthetic and water based coolants. When used as a synthetic or oil mist eliminator, metal cutting fluids will self clean and lubricate the electrostatic cell. Once collected, cutting fluid continuously drains from the collection cell, yet leaves a thin, protective layer on the plates. This practically eliminates maintenance. You may need to remove and wash the collection cells only once or twice a year. For companies replacing media or centrifugal, this high efficiency and low maintenance for oil and synthetic coolant enable electrostatic mist eliminators to pay for themselves in one or two years.

Water Based Coolant Mist Collection

Electrostatic precipitation is just as efficient in collecting water based coolant as it is collecting oil or synthetic mist, though maintenance is slightly increased. Most electrostatic coolant mist collectors have a regulator switch or a water-only version with a lower voltage setting for water based coolant. This is necessary for water's electrically conductive nature. Water's polar molecule responds exceptionally to the electrostatic process of collection. Thus, high collection efficiency is maintained even at a lower voltage. Though, water based coolant frequently leaves mineral deposits on the metal collection plates. This means you need to put the collection cell in a parts washer with non-caustic cleaner once or twice a month (depending on your application). Cleaning is very easy. Open the door, pull out the cell, throw it in your parts washer for three to five minutes, and air dry. Keeping a spare collection cell to rotate in a cleaning schedule will eliminate unnecessary downtime. Even with a bi-weekly cleaning schedule, electrostatic mist collectors will ultimately cost less to maintain than media or centrifugal mist eliminators.

A full range of post filters are available for electrostatic mist eliminators. Carbon, HEPA, various ASHRAE or whatever you need to meet local codes can be added by the manufacturer. Though the majority of pollution will be collected by the electrostatic cell.

Filter Media Mist Collectors

In some applications it would be unsafe to use electrostatic cells. You must use filter media mist eliminators if you are working with:

highly ferrous metals,
highly conductive materials,
abrasive operations that produce small metal chips,
explosive metals such as carbides or magnesium,
cast metals like aluminum or iron,
or anything with a high iron content.

Depending on use, you will need to replace media filters regularly. Because replacement filters are so expensive, over the first year or two, you will typically spend more money on a replacement schedule than the initial cost of an electrostatic mist collector. This is one big reason why electrostatic mist collectors are the most attractive option.

Centrifugal Separators

The least attractive option is the centrifugal separators. In theory, large mist droplets are separated and drained, while fine mist and smoke passes through. A media after-filter must be added on the end of a centrifugal separator to catch fine mist and smoke. Unfortunately this system is inefficient as a total solution as well as mechanically unstable. Metalworking coolant and smoke is drawn through the blower's spinning mechanics before being separated. The whole separator chamber rotates. It's like using a washing machine spin cycle to filter coolant mist and smoke. Moving parts become gummed-up with coolant. Its a very dirty process. In order keep a centrifugal separator in service, it needs constant cleaning, which means you have to disassemble, clean and reassemble complex moving parts. In past installations, bearing and seals frequently failed, causing the unit to go out of balance and shake. You can assume the unit's components will fail and require replacement on a regular schedule. Centrifugal separators create a lot of downtime and waste a lot of money, while providing inefficient pollution control.

Compare preventative maintenance cost of centrifugal separators with media filter replacement cost and electrostatic precipitator cost of ownership, and you will see why so many people prefer electrostatic coolant mist eliminators.