I have an LG still air bator w/turner. I was wanting to add a pc fan to it using a 9Volt adapter...didn't have 12Volt. I had a hard time towards the end of my last hatch, keeping the humidity up high enough. Do I have to worry about my humidity being lower or higher once I add the fan? Also would I keep temp at 99.5 or closer to 101? I know I'm probably going to get many different answers, but I don't know what to do. Also I read on here to put the fan in the middle of the 'lid' and have it blow upwards, not down on the eggs. I am getting the fan tmr...is there a switch or something to make it blow different directions? wont the chicks get hurt in the fan or is it protected with screen? Sorry about all the questions, I can't seem to find the answers to some. Thanks so much!