10 Apparatus intended for spraying of aerosols for medical use, namely, aerosol dispensers and inhalers, dry powder inhalers, nebulizers, pressurized metered dose inhalers, soft mist inhalers for drug delivery; nasal molding apparatus for medical use, namely, apparatus for creating a mold of a patient's nose to optimize drug delivery; sprayers for medical use, namely, therapeutic devices for delivering specifically engineered aerosol mixtures for medical benefit; particle analyzers for medical use, namely, flow-based analyzers providing particle analysis, detection, or counting for medical, clinical, medical diagnostic, and therapeutics use; testing apparatus for medical use, namely, medical diagnostic apparatus for testing amount and pathway of drug delivery for nasal, rhinological, laryngeal and oral cavity effect; diagnostic apparatus for medical use, namely, medical diagnostic apparatus for detecting amount and pathway of drug delivery for nasal, rhinological, laryngeal and oral cavity effect