Haha I wanted to do the same with a few GPU's but I think the moisture will not do em good.
Is is quite an original idea tbh.
Don't worry, water only condense on an object which is colder than air, miners when running are warmer than the surroundings so there will not be condense. My net is to stop insect/flowers/snowflakes from being sucked into the intake of miners, it has large holes (2mm in diameter)
The other day i learnt the [annoying] way that my PSU with a beautiful blue LED glowing fan intake is like a beacon for the only fly in the house. I had to stop the PSU every time the stupid bug got sucked up into it and wait for the fly to leave before restarting. After about 4 of these in an hour, i gave up and turned off the LED functionality
