Reactions vary, and an air cleaner that has a dramatic effect on one person's health may make no difference to another.

This keeps water and dirt from entering the air cleaner.

A special scoop was mounted in the hood, directly above the air cleaner.

Only a limited number of air cleaners have been certified under this program at the present time.

He had the vision of creating "The best air cleaner in the world".

For the room inside, I'd try to buy or borrow an ionizer-type air cleaner.

In sum, air cleaners can be useful, but have limited application.

That's how I plunged into the world of air cleaners.

An air cleaner is not going to do much for that.

"I've seen some air cleaners with very small charcoal filters that could be used up in a matter of days," he said.