According to best practices, range hoods must be vented according to what?

The correct choice is based on the importance of following the manufacturer's specifications for venting range hoods. These specifications are designed to ensure optimal performance and safety of the appliance. Manufacturer guidelines typically provide necessary details regarding the size of ducting, airflow requirements, and installation procedures, which are essential for effective ventilation. When properly vented according to these specifications, the range hood can effectively remove airborne contaminants such as smoke, odors, and grease, contributing to a safer and healthier kitchen environment.

While local building codes, environmental regulations, and industry best practices are indeed important considerations, they often complement or reinforce the manufacturer's instructions rather than replace them. Adhering to the manufacturer’s guidelines is crucial because they are specifically tailored to the appliance in question and take into account its design and engineering requirements.