Pharmacopoeial standards are regulatory procedures continue to evolve, leading to refinement in the definition of requirements for device performance required at the time of evaluation.

Uniformity of delivered dose
Studies have shown that dose delivery is uniform and similar over a wide range of flow rates using Revolizer. All emitted doses are between + or – 25% of the nominal dose when tested at the flow rate of 60 L/min.

The fine particle fraction is quantifiable in vitro from material recovered from appropriate stages of a variety of commercially available, standardized laboratory bench facsimiles of the lung operated according to international  pharmacopoeial standards. The characteristics of the fine particle fraction using the revolizer have been assessed using the Anderson cascade Impactor.

Comparative performance

•  Does not require co-ordination between inhalation and actuation

 
•  Is easy and convenient to use.

 
•  Is easy to teach, learn and remember how to use correctly.

 
•  Is intuitive to use and its performance is not adversely affected by poor technique / mishandling.

•  Is accurate, consistent, and effective  at delivering medications to the lungh even at low inspiratory flow rates.

 
•  Is ready to use – it needs no priming or shaking.

 
•  Is portable.

 
•  Gives patient feedback due to the taste of lactose in the mouth.

 
•  Is robust.

 
•  Is visually appealing to the patient.