So, where does the smoke go?
I have no idea.
The web site (
https://firstbuild.com/products/indoor-smoker/) states that its ventless filtration technology is based on its Monogram Hearth Oven (
https://appliances.monogram.com/us/specs/ZEP30FLSS - starting at $12K).
In the video posted above, the woman states that the hearth oven has a “special system inside that absorbs the smoke during the cooking process” and this “special smoke-trapping technology was safely nestled” into the prototype indoor smoker.
I don't think the "special system" traps or absorbs the smoke, rather I think the system acts like a motor vehicle three-way catalytic converter, where it takes care of the three main emissions of a vehicle (nitrogen gas, carbon dioxide, and water vapor -
https://auto.howstuffworks.com/catalytic-converter.htm) by speeding up chemical reactions to reduce those emissions.
To compare, the three main emissions of a wood fire are gasses, solids, and liquids (
https://amazingribs.com/more-techni...ring/what-you-need-know-about-wood-smoke-and/).
For the Monogram Hearth Oven, I looked at the owner's manual (
https://products.geappliances.com/M...ispatcher?RequestType=PDF&Name=49-80785-2.pdf) "Care and Cleaning" section and didn't see any filter replacement requirements, which also supports the catalytic converter theory.
Like cars, this indoor smoker will likely have a fuel management system with sensors to read parameters (ambient air temp, pit temp, etc.) to adjust the air to fuel ratio from lean to rich to make sure all of the fuel will be burned using all of the oxygen in the air. If I had to guess, this countertop indoor smoker will retail in the $3-4K range...maybe more.