Loop Pile
With loop pile carpets, they should be vacuumed using the suction head only. If you use beater heads and brushes, they can catch and lift the fibres which can cause excessive fluffing and matting, giving the carpet a bobbled or felted appearance. By using a beater head on loop pile carpets you create the risk of fibres becoming wrapped around the bar, that can create a run in the carpet.
Cut Pile
Cut pile carpets should be vacuumed with an upright cleaner with a beater bar and brush. It’s also best to use a lightweight vacuum with adjustable brush height settings, so the vacuum and glide over the top of the carpet. With cut pile rugs, it’s always best to avoid the edges with a beater bar and use a smaller suction attachment instead, to reduce fraying.