Thank you to the original poster and designer, mbonadurer.
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)
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.
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.