Fine dust of any kind is dangerous to health. This also includes the finest wood dust. With some types of wood, cancer is even suspected. Fine sanding dust remains in the air for hours as an "invisible danger". Even ventilation or wearing dust masks does not provide sufficient protection here.
Thor air filters filter the entire room air 10 to 50 times per hour, depending on the type and room volume. The finest dust particles with a size of less than 1 micron (= 1 thousandth of a millimeter) are reliably filtered out. Thor air filters are not only suitable for removing wood dust. Metal dust, pollen, textile fibers, cement dust, fungal spores and much more are also removed from the room air.
Image (click to enlarge): Number of filtered air volumes per hour depending on filter type and room size. The marked areas show the suitability of the respective type with the corresponding room size.