Legal framework conditions apply to the different dust classes. They are described in the international standard IEC 60 335-2-69, which divides dusts into three different dust classes: L, M and H.
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Dust class L (low hazardous dust):
Simple and harmless dusts such as house dust and materials like soil or lime. The dusts have AGWs of > 1 mg/m3. For L vacuums, the filter material is tested. The max. permeability is less than 1%. There are no special disposal regulations.
Dust class M (medium hazardous dust):
All wood dusts as well as dusts from putty, filler and varnish, plaster, cement, concrete, tile adhesives and paints such as latex and oil paints or materials containing quartz such as sand and pebbles. Here AGWs of > 0.1 mg/m3 are available. M-vacuum cleaners are tested by the test center as a complete unit. The max. permeability is less than 0.1% and the disposal must be low-dust.
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Dust class H (high hazardous dust):
This class includes dusts with all exposure limits, all carcinogenic dusts, dusts with carcinogenic and pathogenic particles, and dusts with mold spores, silica sand, lead, asbestos, mineral fibers, bitumen, and artificial mineral fibers such as glass wool. These vacuums are also tested as a whole unit and the max. transmittance is less than 0.005%. The disposal must be carried out dust-free.
Dust class H-Asbestos:
This class corresponds to dust class H, but in Germany the vacuums must have an additional test according to TRGS 519, which entitles them to pick up and separate asbestos.
You can determine the right sweeper for your application based on the following criteria:
1. how large is the area to be swept?
2. how often do you sweep?
3. how clean does the area need to be?
For small areas (approx. 250-500 m²) and occasional sweeping, we recommend the Starmix 355 (55 cm sweeping width) and 375 (75 cm sweeping width) for around the house. The 375 model also has an additional cross-mounted sweeping roller that picks up particularly fine dirt.
For larger areas (up to 1,000 m²) and regular sweeping, we recommend the Starmix 477 (77 cm) and Starmix 497 (97 cm - up to 2,000 m²) professional sweepers, all also with the turbo sweeping system - 2 disc brooms in front and a transverse fine dirt sweeping roller.
For very large areas (up to 2,500 m²) and regular sweeping, our battery-powered professional sweepers 677 (77 cm) and 697 (97 cm) score highly.
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