Filters and Air Cleaners
Here we present our activities concerning filters used to filter air born particles
Filters are used to protect humans, processes and environment. The filter should filter particles and the property evaluated is particle filtration efficiency, but also pressure drop is an important quality. Filters are found for example in ventilation systems, vacuum cleaners, air cleaners and in vehicles. At SP we test filters for many different applications. Below follows a selection of the products we test.
Air filters for general ventilation
SP is accredited for testing of air filters for ventilation systems according to the standard EN779. During long term testing of air filters according to SP-method 1937 the long term performance are tested under real conditions. The tests stand alone, but are complementary and both are included in the requirements for P-markning (click at: P-markning, construction products). The P-mark is SP’s own quality assurance system and P-marking of air filters has been applied since 1997.
Air Cleaners
An air cleaner cleans the air from particles and can be moved from one room to another. SP test among other things:
- Cleaning efficiency (ECR/CADR)
- Ozone production
- Noise
Vacuum cleaners
A vacuum cleaner can consist of several filter units where for example the bag is one filter unit and the exhaust filter is another unit. To work satisfactory as a complete unit, it is important that it is air tight so that the air is filtered in the filters and not passing through leaks around the different filter units, i.e. the particle filtration efficiency of the complete vacuum cleaner system.
- Filtration properties complete vacuum cleaner
- Filtration properties vacuum cleaner filters
- Filtration properties vacuum cleaner bags
Contact us for more information regarding special kind of filter tests.