If there was some kind of removable screen or plate for the interior part where some of the aromatherapy products fall in, that would be the genuine improvement.
Pros: THIS VAPE: GREAT TASTE, long lasting, works like new, dropped more than once and is still operable, heavy duty, reliable, has never failed, stealthy, combines with my wood floor, beautiful aesthetics!!!
Cons: Some aromatherapy products may fall into the vape, but are easily removed. None, other than regularly replacing the whip and glass and plastic parts, this product is the best I have seen.