Came across this post on reddit, where a user created a custom PCB with the following sensors :
Also uses:
The reddit user listed this board for purchase on ebay! This case is custom made for this tiny stack!
No screws .. just press fit. The OLED screen rests on 4 posts for the mount holes.
Do double check the dimensions of the OLED display. I had a few, and the screen sizes varied based on the manufacturing batch, even though they were purchased from the same aliexpress seller.
Full details/code here:
https://github.com/RonHeg/SGP41-VOC-Shield
The author marked this model as their own original creation.