Indeed. Charcoal filters are to catch some odours, the aluminum will catch some grease, but ‘natural gas’ is a whole lot more than methane, and think the same is true for propane.

Thought this was an Onion article!

Hey plebs! I demand you work 50% more to develop AGI so that I can replace you with robots and fire all of you and make myself a double plus plutocrat! Also, I want to buy an island, small city, Bunker, Spaceship, And/Or something.

The studies I read, there was no ventilation / exhaust fan. The point was that low income households using these stoves often don’t have proper ventilation and it makes them dangerous. I didn’t find much evidence that using them with proper ventilation is actually a serious problem.

Further, cooking releases all sorts of chemicals from incomplete combustion in the air if something is burning, as well as the toxic chemicals release from nonstick cookware at very high temperatures, so cooking without ventilation is bad for your health would be the message I’d take away. I find most people are completely unaware of the hazard.