Kitchen range hood motor housing and fan

A fan for use within a range hood for exhausting gases generated above a cooking surface comprising:

• a plurality of arcuate fan blades having front and rear faces;
• a basket housing;
• an outer cylindrical stabilizing element;
• at least one trough on said front faces of said fan blades, said tough declining at an angle from said basket housing to said stabilizing element;
• and
• wherein said fan blades protect radially from said basket housing to said outer cylindrical stabilizing element.

A motor housing and fan assembly for a range hood for exhausting gases generated above a cooking surface comprising:

• a motor housing having top, bottom and side surfaces defining a chamber and having an air inlet and an air outlet;
• a motor housed within said motor housing chamber;
• said motor including a fan having a plurality of fan blades, said fan adapted to rotate about said motor;
• and
• a space between said fan blades and said top surface of said motor housing, said space increasing in the direction of rotation of said fan from a first position to a second position.