If you feel you need to reduce or eliminate WiFi, these and the router WiFi would have to be removed or disabled. This is not an offer to discuss danger of WiFi. You have to decide that on your own.
I've got in my room:
Smart TV (wifi connection)
ChromeCast (wifi)
Google Home (wifi)
Smart Lamps (wifi)
Smart switch - turns room lights on and off (wifi)
are these devices dangerous in my room ? will they make much radiation inside it ?
P.S: router & extender are outside the room.

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