THOR TF250 Air Filter

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THOR TF250 Air Filter

This Air Filter is now manufactured, in the UK, by Thor Filtration. Thor have always been the metal fabricators for the Microclene range, they have now set up a production line using all the same components, including the motor, as the original machines.  We are confident there will be a continuation of the performance and reliability that Microclene were famous for.

The NEW TF250 is suitable for filtering the air in a workshop of up to 22 cubic metres air volume, around 3m x 4m floor area (14′ x 12′).

They are very quiet in operation and can run for long periods of time. Air Filters should be used in conjunction with a dust extractor for maximum dust control.

The small compact design of this unit, make it ideal for small workshops. It can be used in various ways;

  • Suspended in the centre of the workshop to act as a general workshop air cleaner

  • Suspended over a particular dust producing machine, such as a lathe

  • Sitting on a shelf or work bench

Filter Media

The filter is made of polyvee glass and to the EU4 standard, which means it will filter out 95% of all dust at 2 microns or larger, 80% of dust down to 1 micron and 65% of dust down to 0.4 micron. The filters are very easy to replace.

Filters are hand assembled in a UK factory in Hampshire, and use only high quality components throughout.
The motors are Swiss made to a very high standard and are very reliable. Thermally protected and most important to woodworkers they are spark proof, so less chance of dust combustion. Ingress protected to IP44 standard.

The range was designed in response to the high number of cancer cases caused by timber dust inhalation mentioned in the national press. In the first two years Microclene filters were given several awards, “Health & Safety product of the Year” “Services to the Woodwork Industry Award” and others.

Their filters are used all over the world in lots of different environments, Timber Dust is the largest market, some other markets include : racehorse stables, hospitals, schools, colleges, universities, metal grinding, indoor aviaries, dental labs, printing works.

For years people have thought that only the exotic timbers were a danger to health, then the European timbers were tested and found to be just as dangerous, causing all sorts of health problems, including nasal cancer, asthma etc. 


Additional information

Weight 6.00 kg
Dimensions 18.00000000 × 20.50000000 × 0.00000000 cm


Air Movement

Room Volume

Particle Size

Overall Dimensions L x W x H



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