@rits Hi - which model did you get? I find several on line. Am looking for one - ready to replace my big Vios with one that is more portable. I have a Devilbiss Innovator for travel, based on ratings I found. It takes "forever" to neb - started out great at about 10 min, now up to 20-25 min per vial - the vendor told me it's different on battery or plugged in, but it's not. Filter, tubing and mouthpiece are changed out for new, but no improvement.