Compatible with all SEBO D4 and D1 canister vacuums, the SEBO D-Series AeraPure™ Filter Bags (8) are designed for optimal suction performance and exceptional filtration. Made from triple-layer, hospital-grade material—similar to that used in N95 masks—and electrostatically charged microfibers, they capture 99.97% of microscopic dust particles. Their sealing caps lock in debris for hygienic disposal, making them ideal for allergy and asthma sufferers.