Are WiFi modems or routers safe in terms of radiation? How far away do you have to actually stay from these devices to avoid any health issues?

https://www.health.govt.nz/your-health/healthy-living/environmental-health/household-items-and-electronics/wifi-networks

here is link to say no harm

while others try to prove its dangerous

there is a link on the internet preaches 15 feet --- 5 meters --- 2.4Ghz wifi normally has a radius of 25 meters , so you have less room to sit

more balanced talk is that not too worry, if you are worried, stay away from RF devices