SNAPWARE FILTER by /u/marcus_silvus
This is my DIY filter! It works pretty well. Reduces the smell about 95%. I'm going to crush up the pellets and see if it can completely remove the smell. I used this fan and this fan. If noise wasn't a concern, I would have gotten the more powerful version of these fans that have greater airflow like this monster fan. But all in all, it works really well and the design makes it easy to take on and off so you're able to make adjustments.