Its called the “AeroEclipse” ( from the same company that manufactures the “Aerochamber”) and its a breath actuated nebulizer. It uses a demand valve so that the medication is only nebulized during inspiration. (You can also set it to nebulize continuously) . I’ve noticed that this thing nebulizes much faster than a conventional neb.
These nebs are probably a little more pricey than the standard cheap o- disposable nebs, but I think they’re worth every penny. I highly recommend this one.