Standley & Gilcrest LLP
Nasal-nasopharyngeal cleaning system
 A nasal-nasopharyngeal-cleaning (NNC) system is disclosed for removing harmful substances from a human's nasal and nasopharyngeal cavities. Harmful substances herein include infectious agents, chemicals, dust, small particles and dirt deposits in nasal cavities and in the nasopharynx. The NNC system includes a NNC solution, a solution container, a liquid transfer tube, a valve means and a flat-head nostril fitting. The two-step cleaning process comprises cleaning the nasal cavity first with the NNC system and then cleaning the nasopharyngeal cavity with the NNC system. 
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Jin-Zhou
Liu