NanoHack Filter Cap with More Flow and Handle

thingiverse

This is a revised version of the NanoHack mask's filter cylinder cap, quickly redesigned to suit my needs. It boasts two significant upgrades. Firstly, I've added extra vents to enhance airflow in and out of the filter chamber. This modification is crucial because I'm using a cloth filter, and I require more air circulation than the original design allows. The vents are strategically angled to minimize direct spray from the outside reaching the filter. Secondly, I've incorporated a handle to facilitate easy removal of the cap. Since the cloth filters are reusable, frequent opening of the cylinder is necessary, making this feature indispensable. To aid in modifications or reproductions, I've included both FreeCAD source files and STL files. Please note that my build quality leaves much to be desired, as I imported the NanoHack mesh and converted it into a solid, which is a computationally intensive operation. I apologize for any inconvenience caused. As a non-expert in science, engineering, or medicine, I'm not qualified to assess the functionality or safety of this design. However, I've shared it with you anyway, hoping it might prove useful in an emergency situation. For those interested in a deeper analysis of the NanoHack mask, which led me to create this revised cap, please refer to my previous post: https://www.fie.us/2020/03/22/a-look-at-nanohack-3d-printable-respirator-mask/ I'm using this redesigned cap in conjunction with my cloth filter holder, available on Thingiverse: https://www.thingiverse.com/thing:4237519