Diffuser - band - was created in 1994.

A diffuser is often used in scanning technology.

A fax is a combination of a scanner, printer, and phone modem - the diffuser helps with image quality from the scan of the document.

Diffuser oil can be purchased at most stores that sell diffusers and candles. Walmart, Bed Bath & Beyond, and Amazon sell multiple scents of diffuser oil.

A diffuser allows smoke to be broken up into smaller streams allowing better filtration and cooling.

Yes this model does have a light diffuser.