A second-generation floor washer, after the Scooba 385 and 390, iRobot has released the 450 model on the market. It consumes little water, cleans more thoroughly and is faster than its predecessors. 

It has two action choices that can be configured simply by a button on the top:

• wash a small room in 20 minutes 
• wash a large room in 40 minutes

A new battery performs 1 cycle of 40', or 2 cycles of 20', then it needs to be recharged.

The rechargeable battery lasts about a year and a half depending on the work done and the recharges. Then it needs to be replaced, but it is not expensive.

The iRobot Scooba 450 leaves the floor clean, wet, like when you mop the floor with a cloth.

It is the only little robot that gently brushes the floor when it scrubs. All other robot scrubbers on the market today do not have brushes, but only drag a wet cloth back and forth, which becomes dirty after a few passes. Scooba 450's brushing technology is unique.

This little robot takes the most annoying and time-consuming work out of housework.

In times of COVID is essential and unique for disinfection. In fact, just add a few drops of disinfectant in the tank and the Scooba will distribute them evenly on the floor sanitizing it.

Important. 

In any case, the Scooba 450 must be run at least once a week to prevent the small tube that brings water to the pump (diameter 3 mm) from drying out.

Conclusions

Absolutely Scooba 450 is the best floor cleaner currently on the market. I have been testing this little robot for months and confirm my first impressionw: very useful and effective.