IRobot Roomba is very smart and smaller sized vacuum cleaner that works so well in homes. It starts to move in a twirl pattern when it starts cleaning the floor. It is consisted of a bumper that works to find any obstacle or the wall around. There is a side brush that is used to clean the sides of the wall properly. After doing this it starts moving straight (in crossing pattern) in the room. It does this till its time elapsed and the room gets cleaned properly. It continues its cleaning cycle in the room unless the time gets over and done. There are so many different models of this small and smart vacuum cleaner and so they have different colors and prices.

It has been designed to work well below the kickboards in one's kitchen. If the fixtures stand only three inches or more off the ground, it will gleefully and appropriately clean the bottom. The noise level of this machine is round about eighty decibels that is the less noise produced then the other regular large sized vacuum cleaners. There is another model of this technology (RoboMow) that has noise round about fifty decibels that is smarter than eighty decibels.