"Suction power" refers to the strength or force with which a suction device pulls in or removes air, liquid, or other substances. It measures how effectively the device can create the vacuum necessary to perform suction tasks. Full definition
When coupled with the deep - suction power of this vacuum, this means that you can really do some amazing work with this machine! (geekwrapped.com)
The method meant the vacuum would never lose suction power and could work without a bag. (canadianbusiness.com)
Those who have reviewed... MORE this vacuum have mostly been happy with its performance, citing its good suction power, ease of use and how lightweight it is. (thespruce.com)