Choosing A Suction Option - ECOVACS ROBOTICS DEEBOT 900 Manuel D'instructions

3. Operating and Programming
Note: For models with app-connectivity, various functions can be
performed using the ECOVACS App.
iOS 9.0 or later
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EN
Android 4.0 or later

3.3 Choosing a Suction Option

Main Brush Option: The best choice for deep cleaning, with a combination
of the Main Brush and strong suction.
Direct Suction Option: The best choice for daily cleaning. This Suction
Option is specifically designed to pick up hair without getting clogged by
it, and is ideal for pet owners.