Frequently Asked Questions
What is suction power in a robot vacuum?
Suction power is the strength of the pull created by the robot vacuum to lift dirt, crumbs, pet hair, and dust off your floors, measured in Pascals (Pa).
How does a robot vacuum’s suction power work?
A motor spins a fan inside the vacuum, creating a difference in air pressure that pulls air and dirt into the dustbin. Stronger motors and fans create more pressure difference and stronger suction.
Why does suction power matter for pet owners?
Stronger suction captures pet hair instead of just pushing it around, making it a game-changer for pet owners who want genuinely clean floors between manual vacuuming sessions.
Is suction power more important than brushes?
Brushes help loosen dirt, but suction alone captures dust and fine particles into the dustbin. Most modern robot vacuums use both, but suction is what actually removes the debris.
The bottom line
Suction power is real, measurable, and matters — but you don’t need to chase the highest number on the market. For most homes, 2500–3500 Pa is the sweet spot where you get genuinely clean floors without paying a premium for overkill. If you have pets or thick carpet, aim for 3000+ Pa. If your home is mostly hard floors and you’re tidy, you can go lower. The bottom line: suction power is worth considering, but it’s just one part of the puzzle. A robot with good suction, smart navigation, and reliable cliff sensors will serve you better than an ultra-powerful one that gets stuck under your sofa.