Vacuum cleaners in for instance the application category C should retain 99.9% of the material collected. You were allowed to use a category C vacuum cleaner for collection of dust hazardous to health with a marginal value of more than 0.1 mg/m 3. Up to 1997 the vacuum cleaners were divided into the application categories U, S, G, C and K1. Industrial vacuum cleaners for dust hazardous to health are divided into classes depending upon their ability to retain the hazardous dust. Please verify whether the suction power is indicated according to EN60312, which makes is easier to compare the data of various vacuum cleaners. The results obtained on hard surfaces are from 90 to 100% and on carpets from 50 to 85%. The result is shown as a percentage (%) and indicates the quantity of dust collected. the suction power together with the nozzle is to give a good cleaning result. If you do that, you will obtain higher powers, which are not comparable.Ī good cleaning result (dust collection capacity) will be obtained when the suction power is high and the nozzle of a good quality. Some manufacturers show the results from measurements made at the suction of the actual vacuum cleaner. with tube, hose and filters – but without nozzle). The suction power is to be measured at the end of the tube of a complete vacuum cleaner (i.e. The suction power is measured in Watt (W) and is typically between 250 W and 450 W for machines with 1 motor. This is an indication of how good the vacuum cleaner is to clean – i.e. The suction power adds up the suction capacity and the air volume and indicates how much power the vacuum cleaner has. The suction capacity indicates how powerful the vacuum cleaner is, and the air volume indicates how much air the vacuum cleaner is able to move.
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