RD40 ->2x DAR Ambu filter adapter. Tested. Gas mask NATO

thingiverse

Make sure seam position is unpredictable, especially when dealing with multiple instances. Optimized for 0.6 nozzle (two perimeters for 0.6 nozzle, three for 0.4 nozzle). PETG filament. Layer height set to 0.2. No support structures are required, but minor cleanup may be necessary depending on print quality. Assembly involves screwing in the adapter first, followed by inserting the T connector into its correct position (a 7-degree skew is designed into the part). The assembly is intended for use with teflon tape (five to eight wraps around the largest pipe and two to five wraps around the filters) or can be glued in place. However, if neither of these methods is used, the 3D prints may not be airtight and could leak false air. Use at your own risk.