Canister vacuums allow you to pull the machine along behind you, cleaning both carpets and hard floors. You can choose between bagged and bagless technology and various cleanerhead types.
Canisters with a passive cleanerhead are very lightweight and portable, but do not have a motorized brush roll to deep clean carpet. They are ideal for hard floors.
Air driven, also called turbinehead canisters, drive a more powerful pickup versus passive.
Motorized cleanerheads are the most powerful and are best for deep cleaning carpets. Most motorized canisters can switch from cleaning carpet to hardwood floors with just a switch of a button, turning off the brushbar.