It is a highly efficient nebulizer that combines short inhalation time with efficient medication delivery, thanks to its powerful compressor and Virtual Valve Technology (V.V.T.). The high efficiency from V.V.T. adapts to your breathing, thus matching your breathing pattern. This technology reduces drug wastage while breathing out and maximizes drug availability when breathing in. Also, this nebulizer kit is made of easy to clean polypropylene without the use of silicon valves which are commonly used in conventional nebulizers.