Suppose you take a laptop and run it 24/7 nonstop in a highly humid environment (70-90%.) Which components would be likeliest to fail, and how soon? Wouldn’t the high heat of the internal CPU keep any moisture from condensing?
If the temperature of the laptop is higher than that of the room, which it almost certainly will be, then there will be no condensation. Absent condensation, I’m not even sure what would cause a problem.
What I had seen in Google search was, “High humidity causes damage to the internal hardware of the laptop.” I’m not sure how or why, hence the question, but that was what it said.
Maybe ask our member in the Yucatan if their hardware is affected. I didn’t notice deterioration in damp foggy San Francisco. My humidity-avoidance strategy: don’t compute in the pool or bathtub and seek shelter from rain.
From experience: I’ve lived in the topics in SE Asia for 7 years, average temperature 32C year-round and avg. humidity was 80% to 90% every day (you do get used to it).
There were 4 computers in our house and none have ever had any humidity related issues. I’ve never heard of that either.
The only temperature and humidity issue we’ve had with computers (and many other things) are rubberized components breaking down. The rubber pads at the bottom of my MacBook Pro disintegrated after about 4 years. That’s very common. Similarly, the glue attaching shoe soles very commonly breaks down.
The only time I’ve heard of people with electronics having issues are with photo equipment where apparently fungus growth can be an issue. People with expensive equipment use these:
If you take your computer from a cold dry area that it has been in for a while, to a warm humid area. Let it warm up before turning it on. Moisture can quickly condense inside the case. It may not cause a problem. But there can be some variety of conductive dust inside the case that is harmless when dry, but might short if it is wet. I live where it is very cold and dry in the winter. I let my equipment warm up for quite a while after bringing it into a warm humid building from being outside for a while.