Vacuum electric power nozzel brushs

What's a vacuum powerhead, power bar or power nozzle and what is it used for?

Answer: Although there are some vacuum models that come with a powerhead that is designed for either hard floors or carpets, generally a powerhead attachment is used for enhanced cleaning of carpets. Some canister vacuums come with a standard floor tool for hard surfaces plus a powerhead for carpets. Also referred to as a power head, power nozzle, beater bar or power bar, this vacuum accessory is designed with either a motor or air-driven brush that lifts and pulls hair and dirt from deep within carpet fibers. Since powerheads usually have stiff bristles, they're not a good tool for hard surfaces or wood floors because they could scratch while cleaning.