Multi-stage filtration system. Captures up to 99.999% of fine dust and reduces the emission of allergens. Enjoy filtered air with a multi-stage filtration system that captures up to 99.999% of dust particles while simultaneously reducing the emission of allergens. The cordless vacuum cleaner features a metal mesh filter that collects coarse dust, while the jet cyclone with a microfilter captures fine dust, and the ultra-fine dust filter can trap micro-dust. All parts and filters are washable, ensuring they can be kept hygienically clean.