For those who want to breathe freely at home after vacuuming with the cordless handheld vacuum cleaner CVH 2, the appropriate HEPA 12 high-performance filter (EN 1822:1998) is essential. This filter safely and reliably removes up to 99.5 percent of even the smallest particles of just 0.3 µm, as well as mold spores, bacteria, and allergens like dust mite droppings and pollen from the sucked-in room air. For best results, clean the filter every 2 weeks or replace it every 6 months.