Hazardous Dust Extractors - H-Class
H-Class dust is regarded as the most dangerous. This type of dust can travel the furthest into your lungs, and therefore may be considered carcinogenic, or at greatest risk of causing cell necrosis.
Materials likely to create H-class dust and respirable silica may include mortar, ceramic, stone, concrete, mold spores, mineral and artificial fibre, asbestos and bitumen.
Class H filtration and extraction systems operate to 99.995% efficiency and occupational exposure of 0.005mg per/m3.