# iRobot Roomba Plus 4020 Combo

- Page: https://bestatbest.com/us/robot-vacuums/irobot-roomba-plus-4020-combo
- No lab has tested it yet, so it is not in our ranking.
- No store we follow has this model in stock today.

## Frequently asked questions about the iRobot Roomba Plus 4020 Combo

**Does the iRobot Roomba Plus 4020 Combo empty its own dust bin?**

Yes. The station empties the robot’s dust bin after every run. The 2.5 l dust bag in the station lasts up to 75 days, the maker says.

**Does the iRobot Roomba Plus 4020 Combo wash and dry its own mop?**

Yes. The station washes the mop itself. It then dries the mop.

**Does the iRobot Roomba Plus 4020 Combo work with Alexa, Google Home or Siri?**

It works with Alexa, Google Assistant and Siri. Home Assistant has an official integration for this model.

**How high a threshold can the iRobot Roomba Plus 4020 Combo climb?**

Thresholds up to 0.6 in (16 mm), the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.

**Does the iRobot Roomba Plus 4020 Combo fit under low furniture?**

The robot is 4.2 in (10.7 cm) tall, so it fits under furniture with at least 4.3 in of clearance.

**How long does the iRobot Roomba Plus 4020 Combo run on one charge?**

120 minutes on its quietest setting.


---

This is the markdown version of https://bestatbest.com/us/robot-vacuums/irobot-roomba-plus-4020-combo: the same data, for readers that take a page in whole. Every product page and list has one, at its address plus ".md". Prices and ranks change every day: quote the date with them.