A jar allegedly containing the breath of actor Kevin Spacey has been put up for sale online in Canada.

The seller claims to have worked with the actor on the set of American Beauty, where they asked him to blow into the jar as a gift for his mother.

The seller says in the ad they got this for their mother who was a huge Kevin Spacey fan before she passed away.

"Anyway, this is real, it’s his actual breath in there. If I recall correctly, we had some sort of chicken pasta for lunch before I asked him to blow in the jar. It’s hasn’t been opened since."