May 2014 Spray 45 Figure 6: The composition of the propellant is shown to have a significant impact on the droplet sizes (μm) produced during aerosolization. Figure 7: Transmission (%) with a vapor tap is significantly higher than with a standard valve, suggesting a lower droplet concentration and drier spray. References 1 Guide on Inhalation Safety Assessment for Spray Products, European Aerosol Federation. 2009 pg. 14-15 2 Dr. Helga Rothe, Understanding Safety of Spray Products: Modeling & Measurement Part 1: Aspects for inhalation safety assessments. First presented at Aerosol Madrid 2013
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