It honestly depends on the ventilation... If there is a good ventilation with chimney effect... Screen on the front bottom or vents low then an open top made of screen you will get the pull that a chimney effect does... Ideally you do not want any enclosure when the lights are housed inside like this one.
Personally this would not be an enclosure I would trust for a chameleon. Lights inside and then you have limited air flow with the way it is designed...
Look at mine... The only parts of this enclosure that is screen is the bottom front service door and the entire top.The sides are solid and the main door is solid. But I get fantastic air flow and my temps and humidity are very stable. Dropping when they need to and raising when they need to. The key is the air flow. Stagnant air is not good. And with my set up, environment, and species I only mist in the morning right before lights on and then in the evening when the enclosure has cooled and the basking lamp has been off for a few hours.
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