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PAPR Personal Air Purifying Respirator #3DThursday #3DPrinting

medicrnmd shares:

Thank you to the original poster and designer, mbonadurer.

Added/Modified:

Y-tube adaptors to utilize dual Bacterial/Viral Filters (Hudson RCI – Teleflex 1605) These filter 99.999+% of bacteria & 99.99+% of Viruses. Original vacuum filters were used and kept in place as a pre-filter for the blower fan. (See original post)
https://www.directhomemedical.com/1-H1605-inline-bacterial-viral-cpap-filters.html

Battery Box Wedge was added between main assembly housing and the battery box to enable using large Milwaukee m12 batteries such as the 3000mah with a larger footprint.

Voltmeter was added to the switch housing cover, the depth of the meter requires a larger switch housing be used.

Belt Slot was added to the back cover to allow a regular belt to be used.

I tested multiple fan/blower units for this project, the most airflow came from a blower that was way too loud to allow hearing anything over the fan noise. The best noise/airflow balance came from this blower.

As always, this is a prototype, no guarantees expressed or implied to the effectiveness of the aforementioned device as a respirator or filter, use at your own risk. Device shall not be suitable for use in IDLH environments.

download the files on: https://www.thingiverse.com/thing:4337021


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