Aromatic nebulizing diffuser

An aromatic nebulizing diffuser, comprising:

• a base panel, said base panel having air holes cut through top and bottom sides thereof;
• an electric fan mounted on said base panel corresponding a part of said air holes;
• an ultrasonic oscillator having a control circuit therein, said ultrasonic oscillator carrying a water level sensor and a light source on a top side thereof, said water level sensor and said light source being electrically connected to the control circuit of said ultrasonic oscillator;
• a power adapter electrically connected to said electric fan and said ultrasonic oscillator;
• a lower housing affixed to said bottom panel and defining an accommodation chamber that accommodates said power adapter, said electric fan and said ultrasonic oscillator;
• a fluid container holding a fluid, said fluid container having a bottom wall, an upright peripheral wall joined to the border of said bottom wall and defining with the upright peripheral wall a fluid chamber, a pressure-charging airway vertically mounted therein and a flange extended from the bottom wall of said fluid container around said upright peripheral wall, said pressure-charging airway having a gas intake port at one end thereof and a gas exhaust port at an opposite end thereof, said pressure-charging airway having a diameter gradually reducing from said gas intake port toward said gas exhaust port, said gas exhaust port suspending in said fluid chamber, said gas intake port extending through the bottom wall of said fluid container and vertically aimed at said electric fan, the bottom wall of said fluid container having a center opening that holds said ultrasonic oscillator;
• a water shutter, said water shutter comprising a pipe connector and a tongue plate, said pipe connector having a peripheral wall and two retaining rods surrounded by the peripheral wall, the two retaining rods and peripheral wall of said pipe connector defining at least one back-ejection puff port, said two retaining rods being tightly fitted into said gas exhaust port of said pressure-charging airway so that said tongue plate extends radially to shield said ultrasonic oscillator and the fluid contained in said fluid chamber;
• and
• a transmissive cover capped on said fluid container, said transmissive cover having an open end and a hole opposite to said open end, said open end being stopped between the flange of said fluid container and a part of said lower housing.