Suction power refers to the ability of a device, such as a vacuum cleaner, to draw in air and particles from a surface. It is measured in units like inches of water lift or air watts, which indicate how effectively the device can create a vacuum. Higher suction power means better performance in removing dirt and debris from various surfaces. In practical terms, suction power is crucial for tasks like cleaning carpets, upholstery, and hard floors. Devices with strong suction can pick up larger particles and more dust, making them more efficient. Understanding suction power helps consumers choose the right vacuum cleaner for their cleaning needs.