We have a Rainbow vacuum cleaning. We have the attachments that go with it. You can let it run without the attachment to clean the air. We paid over $3,500 dollars for it. We want a 1000 obo. It's like brand new. Just need money to try and pay off the $3,500 we paid for it. It is water operated so it catches all the dust and don't put any of it back in the air, like a normal vacuum cleaner.