The Opticlean 42Q8 is a bagged canister vacuum cleaner of Bissell. It is less expensive than the average, but still offers good performances, especially on hard floors.
The Dyson DC26 is a compact bagless canister vacuum cleaner. This lightweight model is intended for people living in small houses or flats. It’s a smaller version of the Dyson DC23. It uses the Dyson’s root cyclone technology, which prevents loss of suction as the bin is fiilling.
The Ergospace Green EL4101A is a bagged canister vacuum cleaner of Electrolux. As every vacuum cleaner from the Green family it is eco-friendly, made from recycled materials, and has a high efficiency. It is also silent, and recommended for hard-floors.
The Miele Olympus S2121 is a bagged canister vacuum cleaner. It’s the standard model of the S2 series, which are the cheaper canister vacuum cleaners of Miele, but still take advantage of the same motor than the high-end models.