Humidifier

Just don't have the visible vapor pointed directly at the electrical equipment. You want it to mix in with the air, so in front of or near a circulation fan is a good thing. Again, you don't want the thick, visible vapor going into the fan motor. Once it is evenly dispersed in room it's simply whateer the RH is... which should be a target that won't cause problems in any normal context. as long as it isn't condensing on the ground, that's fine too. These types of humidifiers leave a residue on stuff unless you used distilled or RO water. A 'cold' evaporative humidifier is more expensive with a wick to replace, but you don't have to worry about residue. It also won't spread bacteria like the other 2 types of humidifiers (research proven). As long as you have good circulation, it won't matter much. Just make sure the thickest water vapor immediately exhausted from the unit isn't inundating electronics or a motor before it is dispersed.

Doesn't really matter... If you have some circulation in the tent, the mist will get spread as long as your nozzle isn't aimed at the wall or something.

Its best to treat the room where the tent pulls the air in from not in the tent itself. Eg, if you tent is in your living room, then humidify the living room air space so when the extractor fan turns on, its pulling in nice humid are from the main room. Its better then placing the humidifier into the tent as it saves room for the plants and does not create any "wet" or heavy RH sports. having a constant mist or humidity blasting part of the plant will cause issues. This is the same for heating and cooling the tents air. If this is not possible, then you can place it inside the tent with fans on to help diffuse it. Make sure your lights are rated to handle it. Most have a IPxx rating. Can google what IP rating stands for. first number is dust second is water, both measure resistance. Higher number better restance. FYI. cool mist humidifiers will spread mineral dust unless your using distilled or RO water. They also need to be cleaned weekly to help avoid the spread of things. Vinegar is good to descaling it and soap and water with a bleach rince after for eveything else.

Humid Air falls down so Place it higher if you can it depends on what light you have

Not sure if the stupid part is how you have wrote it.. what. What a.errr. Can you write that question again, maybe after a joint lol... Peace and love 💚.. Next...