Filters out smoke, bacteria, fungus, pollens, virus, pet dander, dust and dust mite allergens relieving symptoms caused by airborne allergens
Offers 30% higher CADR (clean air delivery rate) than an equivalent size HEPA filter so that your air is cleaner faster and you feel better sooner
Suitable for a room up to 34 sq m
With free replacement filter - saving you £18.38
The Large Ultra Clean is a large unit! Please check dimensions before ordering. It is ideal for a medium to large bedroom, office or living area and is one of our best selling units.
The Ultra Clean air purifiers from 3M use a Filtrete electrostatic filter. They are 99.9% effective at removing pollen, dust mite debris, pet dander and mould spores. The units have three speed settings with a simple control knob and a light indicator to let you know when the filters need replacing.
Most permanent and washable filters quickly lose their electrostatic properties through washing and clogging. Filtrete uses replaceable electrostatic filters to deliver the enhanced filtration of an electrostatic filter on a sustained basis.
Compared to a HEPA filter with a comparable room size capacity the Filtrete Room Air Purifiers deliver up to 30% more air circulation, up to 24% higher pollen capture rate and up to 12% higher dust capture rate.
Large room size 34sq m
3 speed settings, quiet on low setting
Electrostatic filter - replace every 3-6 months
Measures 70.5x50.8x23.6cm
Weighs 10kg
Max. power consumption 176.8w
Noise in decibels 46-61dB
Combined CADR 1358cu m/hr*
CADR cu m/hr: pollen 486, dust 405, tobacco smoke 467
Two year guarantee
Allergy UK Seal of Approval
Name
Size
Members
3M Large Ultra Clean with Free Replacement Filter
n/a
£163.47
Replacement Filter for Large Ultra Clean
n/a
£18.38
Further Information
Clean Air Delivery Rate (CADR)
This is a measure of an air cleaners delivery of particle free air as calculated from independent laboratory tests. The higher the CADR, the faster the unit cleans the air. The measurement is in cubic metres and varies dependant upon the type of particles measured.
The Electrostatic Filter
The electrostatic air filters utilize synthetic material. As the air passes through the air filter it produces friction that creates a natural electrostatic charge between the polypropylene and the layers of bonded polyester fibres. The electrostatic charge attracts minute household dust particles to the electrostatic furnace filters like a magnet. This can be demonstrated by rubbing the surface of the filter with a cloth briskly and placing the filter over lightweight flakes of material such as tea leaves, or styrofoam chips. The small chips will be attracted to the filter surface and held there due to the charge that developed on the filter as a result of rubbing it. These dust particles consist of irritants and allergens such as bacteria, dust mites, pollen, fabric lint, plant & mould spores, human and pet dander and tobacco smoke.
An electrostatic filter is generally effective in capturing particles 1 micron and larger. A micron is 1/25,000 of an inch. Some of the particles our filters are able to capture include house dust, lint, animal dander, pollen, mould spores, and skin flakes.
Fantastic, delivered next day. This is the best I've ever bought. It's big but it does the job and beyond. I will be buying one for upstairs. I've bought many of these types of air purifiers plus more expensive, and this one beats them all. Very happy. Thank you.
Filtrete Large, February 5, 2010
Reviewer: M.N. from High Peak, Derbyshire
Arrived promptly. Very good service. Very pleased with the product. There is a significant reduction in dust particles in the room and also dander from our birds.
My case of using 3M Filtrete Large Ultra Clean, September 9, 2008
Reviewer: Enzo Maxmara from London (E1)
I'm living in Eastend London (near Brick lane) where just outer fringe of congestion charge zone, air quality is so bad here. Bought large unit, nicely fit my small room and I can notice the air difference immediately.
There are 3 setting, say 1-3, minimum level 1 still louder than my computer, level 3 is quite audible, only level 3 can detect filter clean level. I can notice the air quality difference but although it said filter need to replace every 6- month, after 2-3 month of usage I can start having itchy eyes and sneeze again, indicating ineffective air circling around. Probably good for not so bad air to clean but not here, end up costing a lot for the replacement filter.
