Air Filters for DIY Mask Inserts
These are the highest rated I’ve found without paying a lot more for medical-grade filters. This is a two pack. When unfolded, the amount of material gained from a single filter is significant. Be careful extracting the paper. The wires are SHARP! Click the picture to purchase directly from Amazon.
My Main Shop Tool
This is the cordless Dremel I use for pretty much everything. Click the picture to purchase it directly from Amazon.