Natural gas units, which are relatively clean, have become popular in recent years.

Thus the board should make sure everyone's credit rating is relatively clean.

The air is relatively clean, but even where it's not, women raised to hang clothes out will find a way.

When the inspector shows up a few days later, the house gets a relatively clean bill of health.

The crime scene looked relatively clean, but you never knew your luck.

This relatively clean race would see 28 different lead changes.

They were then in the countryside, and the water relatively clean.

It was, for the most part, relatively clean and unlikely to carry disease.

The place will be relatively clean when you get back.

The windows were still intact, and the floor was relatively clean.