High Flow Montanna filter plug
thingiverse
This is my first time uploading to Thingiverse, so be kind, please. I'm posting a version of the Montana mask's filter plug. It replaces the square part that holds the filter in place. I didn't like the airflow of the original because it made my asthma act up; this one has much better airflow. The mask can work with any filter material generally, but it is specifically designed for P2.5 filters. https://www.amazon.com/Activated-Breathing-Protective-Pollution-Activities/dp/B085L9HFV6/ref=sr_1_1 I'm sorry about the link; it's really bad! Feel free to modify or share this design however you want, just don't scold me.
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