u/Delicious-Ant947

I saw a bunch of filament for a very cheap price on temu and aliexpress, as well as some deals for a 5m. How legit is sites like Temu and aliexpress?

I am currently building a setup with a grow tent, but the connection between the fan and the tent isn't air tight because of a adapter. It this fine because of the negative pressure? Or will it let air escape? I am using a yoopai tent.