Filtermist has specialised in effective oil mist extraction since 1969 and is trusted by some of the world's leading manufacturers to effectively remove oil and coolant mist from the air in their workshops.

We offer three types of technology for removing oil mist – our own brand of UK manufactured centrifugal oil mist filters, premium filters which use static filter media and electrostatic filters. As well as stand stand-alone oil mist extraction units Filtermist can also supply centralised extraction systems - our dedicated team works closely with customers to identify the best solution for specific requirements, based on extensive applications experience.

Our standard product range is extensive - including everything from small stand-alone units with a nominal airflow of 180 m3/h (for installation directly on the machine tool) to larger units capable of extracting up to 8,000 m3/h (with an internal fan). However, with an external fan we can supply a solution to meet any airflow requirements. As an alternative to our standard range, bespoke units can be manufactured to form a centralised system designed to take care of an entire production site.

Products fall into two main types - those designed to suit water-soluble based coolants (used in applications such as machining, grinding, turning and milling) and units for oil smoke generated from neat oil applications (used in processes such as cold heading, heat treatment and forging operations). In addition to this, our filters can also be used in EDM and test cell applications.

Where is oil mist found?

Oil Mist is generated when oil or coolant is sprayed onto parts to aid the manufacturing process - often using compressed air to atomize the oil.

In metalworking industries such as automotive, aerospace, medical device manufacturing, power generation and general precision machining there are four basic types of metalworking fluids used to keep metal cool during manufacturing processes: Straight Oils, also known as ‘cutting’ or ‘neat’ oils; Soluble Oils; Semi-synthetic Fluids and Synthetic Fluids. Each has its own specific properties and is more suitable in certain applications, but they all have one thing in common – when sprayed, they all generate airborne mist particles known as oil mist.

Why do I need oil mist removal?

Oil mist is a hazard to human health and can increase susceptibility to several types of cancer as well as causing other health problems such as extrinsic allergic alveolitis (also known as Hypersensitivity Pneumonitis), contact dermatitis, asthma, bronchitis and lung fibrosis to name but a few.

Oil mist particles which are larger than 3.5 microns in size are separated in the nose and throat, whilst particles smaller than 1 micron are absorbed into the bloodstream. Particles between these sizes are retained by the throat, bronchial tubes and lungs, causing a variety of occupational diseases. To put this into perspectve, the diameter of an average human hair is between 10 and 50 microns.

Oil mist is also a fire risk and is flammable if exposed to a source of ignition. Our oil mist filters remove this risk by capturing and containing the oil within the filter before returning clean air to your workshop.

Oil mist escaping from your process can also settle on floors and other surfaces and can cause slips and falls if droplets are allowed to build up on surfaces where workers walk. Accumulation of oil mist on sensitive electronic apparatus can also cause equipment to fail, interrupting production and resulting in costly downtime.