HME Filter Adapter for 3M Half Face Mask

I printed this and 3M mask cap for 6200/6800/7502 (https://www.thingiverse.com/thing:4163080) with the intent of blocking one side of my half face mask and using an HME on the other if we run out of N95 masks.

I found the mask cap fit perfectly but the HME filter adapter did not provide a seal. The HME filter adapter's connector isn't ramped (it's just flat) but the mask cap's connector is ramped and makes for a tight seal.

I combined the best of the two in TinkerCAD and this is the result. I tested on a 7500 face mask I have at home and it works great. I'll have to wait until I go back to work to try it on the 6300 they issue me.

I'm going a little heavier on the infill just to be paranoid about making it as air tight as I can make it.

AS WITH ANY PIECE OF HOMEMADE PPE, USE AT YOUR OWN RISK

CORONA VIRUS COVID SARS PPE MASK N95 HME FILTER ICU HEALTHCARE AMBULANCE DOCTOR NURSE RT PARAMEDIC