The purpose of vacuum cleaning is to remove soil from the carpet and restore the pile.
Even though time consuming, regular vacuuming is very cost effective and can remove up to 80% of surface dirt.
A vacuum cleaner with a motor driven brush and beater bar does the best job of cleaning. The beater bar loosens the compacted dirt making it easier for the brush and vacuum effect to remove the particles.
Operate the machine slowly back and forth and let it do the work. Don’t hurry – this is another false economy.