Kitchen extractor hood with innovative design

Extractor hood comprising:

• an extraction conduit (2) with extraction mouth (2A) used to extract an air flow (S2) in the direction of an axis (A) in such a way to extract the fumes (S3) from the cook top (P),
• an air treatment unit (4) designed to force air through the extraction conduit (2),
• at least one delivery conduit (3;
• 30) provided with at least one deflector (3A;
• 30A) designed to convey a forced air flow (S1;
• S4) outside in the direction of at least one axis (B;
• B′;
• B1, B2) that forms an angle (α;
• α′;
• α1;
• α2) different from zero with respect to the axis (A) of the extracted air flow (S2), in such a way to generate a pneumatic screen (S1, S4) and a vortex (V1) between the extracted air flow (S2) and the pneumatic screen (S1, S4) that favours air extraction through the mouth (2A), wherein the deflectors (3A, 30A) of the same specimen of the delivery conduit (3, 30) are directed in such a way to generate corresponding pneumatic screens with intersecting directions above the cook top (P), wherein the extraction conduit (2) is mounted in coaxial position in the delivery conduit (3), wherein a distributor (7) is mounted inside the delivery deflector (3A), being provided with a plurality of blades (70) arranged according to an axis (C) inclined by an angle β different from zero, with respect to the radial axis (R) passing through the blade in order to generate a pneumatic screen (S1) with helicoidal section.