Hi!
I´ve made this desk solder fume extractor to hold an 80mm fan on it along side a carbon activated filter.There´s no holes to hold the fan because it will hold it itself.There´s also a square hole so you can insert a on/off switch (https://pt.aliexpress.com/item/32997395813.html?spm=a2g0o.order_list.order_list_main.16.75d8caa4cdkdQ0&gatewayAdapt=glo2bra) and a 12v port (https://pt.aliexpress.com/item/1005004761601956.html?spm=a2g0o.order_list.order_list_main.11.75d8caa4cdkdQ0&gatewayAdapt=glo2bra).
I´m going to add a video/tutorial on here when i have time to film it.