Many brands and types of lightweight vacuum cleaners with HEPA filtration are available in the market; Samsung 5490M, Miele S168, Upright, Dirt Devil Dynamite , Backpack 4-state HEPA Cleaner, HALO, Dyson are some brands of vacuum cleaners with HEPA filtration sold in the market. the best of all Aerus electrolux with 99,99 filter all the rest have efficiencefrrom 15% to 45%