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Andrews Sykes Group is a specialist hire company in the United Kingdom, and a supplier of pumping, heating and cooling solutions. [ buzzword ] Its headquarters are in Wolverhampton , United Kingdom. In 1989, Sykes Pumps was merged with Andrews Industrial Equipment by Braithwaite Group to form what is known today as Andrews Sykes Hire Ltd. [ 1 ...
An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .
Air ioniser and purifier with its dust collection plates removed. Air ionisers are used in air purifiers to remove particles from air. [3] Airborne particles become charged as they attract charged ions from the ioniser by electrostatic attraction. The particles in turn are then attracted to any nearby earthed (grounded) conductors, either ...
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The two most common standards require that an air filter must remove (from the air that passes through) 99.95% (European Standard) [4] or 99.97% (ASME standard) [5] of particles that have a size greater than or equal to 0.3 μm.
Two proprietary scales are used to rate sub-HEPA air filters. The Home Depot scale is known as filter performance rating (FPR), and is reduced from a 1–10 scale to only 4, 7, 9, and 10. It measures ability to capture large particles, small particles, and weight change over the lifetime of the filter.
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