Every trip through the house sends hair, dust, pet fur and debris into the brushes, wheels, filters, rollers and internal components of your robot.
Eventually:
• Brushes become wrapped in hair
• Filters clog
• Wheels accumulate debris
• Sensors get dirty
• Suction decreases
• Batteries weaken
• Parts wear out
The robot that once cleaned beautifully starts doing a mediocre job.
And suddenly the appliance you bought to eliminate a chore becomes another chore.