Ventless hood for cooking unit

A cooking unit comprising:

• a cooktop defining a slot at least partially extending along a peripheral edge of the cooktop;
• a hood assembly coupled to the cooktop, the hood assembly including:
• a hood support extending upward from the cooktop, the hood support defining a conduit;
• and
• a hood coupled to the hood support, the hood defining an intake and a hood chamber connecting the intake to the conduit of the hood support;
• a duct assembly coupled to the cooktop, the duct assembly including a ducting extending beneath the cooktop, the ducting connecting the conduit of the hood support to the slot of the cooktop;
• a fan disposed within the ducting beneath the cooktop, the fan positioned to drive air into the intake of the hood, through the hood chamber of the hood, through the conduit of the hood support, through the ducting, and out of the slot of the cooktop, wherein at least a portion of the air exiting the slot of the cooktop returns to the intake of the hood such that an air curtain is generated between the slot of the cooktop and the intake of the hood;
• and
• a filtration system disposed within the ducting and positioned upstream of the fan, wherein the filtration system is configured to neutralize at least one of particulates, odors, hydrocarbons, or grease laden vapors within the air, wherein the filtration system includes a biocatalyst that facilitates performing electrostatic enzymatic catalysis.

A cooking unit comprising:

• a cooktop defining a slot at least partially extending along a peripheral edge of the cooktop;
• a hood assembly coupled to the cooktop, the hood assembly including:
• a hood support extending upward from the cooktop, the hood support defining a conduit;
• and
• a hood coupled to the hood support, the hood defining an intake and a hood chamber connecting the intake to the conduit of the hood support;
• a duct assembly coupled to the cooktop, the duct assembly including a ducting extending beneath the cooktop, the ducting connecting the conduit of the hood support to the slot of the cooktop;
• a fan disposed within the ducting beneath the cooktop, the fan positioned to drive air into the intake of the hood, through the hood chamber of the hood, through the conduit of the hood support, through the ducting, and out of the slot of the cooktop, wherein at least a portion of the air exiting the slot of the cooktop returns to the intake of the hood such that an air curtain is generated between the slot of the cooktop and the intake of the hood;
• a filtration system disposed within the ducting and positioned upstream of the fan, wherein the filtration system is configured to neutralize at least one of particulates, odors, hydrocarbons, or grease laden vapors within the air;
• an airflow sensor positioned to facilitate detecting a flow rate of the air through at least one of the hood assembly or the ducting;
• and
• a controller configured to at least one of (i) provide an error notification or (ii) prevent operation of the cooking unit in response to the flow rate of the air being at least one of (a) greater than a first threshold indicating that a component of the filtration system is not installed or (b) less than a second threshold indicating at least one of a leak, blockage in a grease filter of the hood assembly, or blockage in the filtration system.