This is a design for a simple bag valve mask filter housing since Hepa filters may become in short supply. This design is to help aid first responders and healthcare facilities be able to protect themselves during the use of a bvm or ventilator.Some of this design is my own (the top and bottom of the housing, but I also want to give credit to the original makers of the filter flange from the Montana Mask, as I incorporated their filter housing into the design. This way we can use the same filter material as those masks. The filter frame with flange design is 100% credit to Make the Mask and to Spencer and Colton Zaugg and Dusty Richardson from their original design. I take no credit for that part. 

The filter material can be sourced from High Tech Filters in Billings, MT. Link is https://www.flowmarkhightech.com/

Please note that this design is to help support the Covid-19 pandemic when critical supplies may become impossible to find. Please note that this design is not been fully tested and approved by the proper government agencies. Please utilize FDA approved devices and follow proper approval paths prior to utilizing on a patient. Please consult with your physicians, medical directors, or hospital for on site approval. This should only be used as a last resort if other Hepa filters for bag valve masks cannot be sourced. I make no guarantees or statements about effectiveness, safety, or reliability. Upon downloading these files, you assume the risk associated with using this product.