Dentures, retainers, and other appliances must be kept extremely clean.

Not only does it have a strict vegetarian diet, it is extremely clean!

Despite the paint and plaster on his clothes he looked extremely clean.

The restaurant is nonsmoking throughout, extremely clean and with good service.

Despite the high numbers coming through, it's extremely clean, making it a viable option for more than just backpackers.

We can take our time and get extremely clean.

Chapter 1 The room was extremely clean, but also suffered from other sorts of extremes.

Also the water has to be extremely clean.

Do you wash your hands frequently or keep things extremely clean and neat?

It is then packaged into extremely clean but not necessarily sterile containers.