Sentence examples for this is not clean from inspiring English sources

"This is not clean.

This isn't clean!

As a longtime oil and gas engineer who helped develop shale fracking techniques for the Energy Department, I can assure you that this gas is not "clean".

"People fetched water from different sources – sometimes from the river, sometimes from the ponds in nearby pagodas – and this water is not clean".

I cannot stress this enough, if your room is NOT CLEAN, it will never be ready for this project.

We joke about cling-ons and dingle-berries, but this only means a person is not clean.

"Cleaner is not clean.

"It is not clean," he told VICE News.

"It is not clean.

That water is not clean".

If the image is not "cleaned", this sensitive information can be exposed to other users.