1.This machine is specially designed for cleaning carpet. Water sucker, rotary brush and water tank three in one. 2.Ergonomically designed for easy handling. 3.Two brush device for simultaneously cleaning and combing the carpet to enhance springiness. 4.Easy brush setting installation and teardown. 4.Floating vacuum shoes for maximum efficiency. 5.Three nozzles device for spraying cleaning solution on carpet for dissolving dirt instantly. 6.Spraying, brushing and vaccuming works simultaneously to save time and labour. 7.Speciallly designed water coil cooling device maintains the motor temperature to increase service life of motor. 8.Transparent waterproof cover made of non-fragmentation material.