General description The Levoit Cordless Vacuum Cleaner Accessories include essential filter replacements designed to enhance the performance of your vacuum. With a 5-stage filtration system, these filters provide exceptional filtration performance of up to 99.9%, making them ideal for pet owners and allergy sufferers. Technical specifications Filtration performance: up to 99.9% (according to EN 60312-1:2017) Package contents: foam filter x 4, felt filter x 4, post-motor filter x 2 Usage If a reduction in suction power is noticed or the filter is visibly dirty, it must be cleaned immediately to maintain optimal performance.