You're not getting much response because people on this forum are not big fans of ductless hoods - especially with a wok burner. I believe that Vent-a-Hood makes an expensive one that they claim is quite effective but I haven't seen any reviews on it. Personally I wouldn't spend a lot of money on a ductless hood.

I've sold one Vent-A-Hood duct free ARS hood. Both my customer and my installer rave about it. No reviews other than that. The key to it is that it has a true HEPA filter to capture odor and smoke. It also has charcoal pellet-filled filters and the Magic Lung system to collect grease. There is nothing else as effective on the market - yet.

Here is a link that might be useful: Vent-A-Hood Duct Free ARS hoods

It's going to be a big safety and health hazard to use a wok burner some place you can't have ventilation. There isn't a ductless fan built that could handle that. Ductless won't really deal well with induction cooking byproducts either, but you can at least modulate your burners a bit easier and open a window. Your wok will quickly overpower anyone with heat and fumes after just a few seconds of putting those whole chiles in.