 and start watching to see what you're doing there. Now, you can go more high-tech if you wanna spend more money. You can get air quality sensors that you could put in that'll test a lot more humidity and PM 2.5, which is that particulate matter, and hydrocarb, all the different things you'll see, all the chemicals that are coming up. And so those are things that you can take a look at if you wanna go a little bit deeper. But just for humidity, that's a cheap, easy way to measure that. And then you can go, wow, okay,