It’s a failure to read the manual thing. Every OTR microwave ever manufactured functions as a hood by definition, and basically all of them (I can only think of like two exceptions) have the option to be configured for either recirculation or to duct outside. It’s just that most models come out of the box already configured for recirculation and most people ('s contractors) are so averse to reading that they fail to realize you can flip the blower motor over and thus cause it to actually accomplish something (provided a duct is in place) rather than just blowing stale air back in your face.
Everyone I know has a microwave. Is that a class thing?
It’s a failure to read the manual thing. Every OTR microwave ever manufactured functions as a hood by definition, and basically all of them (I can only think of like two exceptions) have the option to be configured for either recirculation or to duct outside. It’s just that most models come out of the box already configured for recirculation and most people ('s contractors) are so averse to reading that they fail to realize you can flip the blower motor over and thus cause it to actually accomplish something (provided a duct is in place) rather than just blowing stale air back in your face.