Can the gas fire baffle be used without being placed on the stove rack?

I can't. The fire baffle will lead to insufficient gas combustion and produce a lot of harmful substances. Not available. The fire hood will also cause carbon monoxide due to insufficient gas combustion, leading to poisoning, and will also cause flame backfire in the cooker, resulting in explosion and other hazards. The so-called energy-saving fire shield is unscientific and dangerous.