Patent ID: 6904907

Claim:
An inhaler device, comprising: a housing body including an aerosol canister holding and aerosol delivery assembly and a handle assembly, said housing body having a low resistance channel formed therein; a mouthpiece assembly having an exhaust port formed therein and defining an opening for an exhaust chamber, wherein said mouthpiece assembly is adapted to receive aerosol from an aerosol canister held by said aerosol canister holding and aerosol delivery assembly; an airflow sensor installed on said housing body and adapted to provide measurement of airflow through said low resistance channel; an input port in airflow communication with said airflow sensor through said low resistance channel, said input port formed to allow air to flow into said housing body through said low resistance channel; and an output port in airflow communication with said airflow sensor through said low resistance channel, said output port formed within said mouthpiece assembly near said exhaust port, wherein air flowing from said output port merges with aerosol provided from said aerosol canister holding and aerosol delivery assembly within said exhaust chamber; wherein said mouthpiece assembly is rotatable attached to said main housing such that said exhaust port of said mouthpiece assembly and said mouthpiece assembly can be rotated 180 degrees toward said handle assembly accomplishing complete closure of the input port and exhaust port.