Air scrubber (HEPA+Carbon)

thingiverse

This is a high-tech air scrubber designed to clean the air inside your printer enclosure by circulating it continuously. No exhaust system is required for this device. I've been unable to measure its airflow, but I believe it's quite effective. Check out this YouTube video: https://youtu.be/B91QR5W4Bqw In my spare time, I plan to create an adapter that can be used with an organic vapor filter like the A1 Filter 906178 from Jula (http://www.jula.se/catalog/klader-och-skydd/skydd/andningsskydd/filtermasker/a1-filter-906178/). The high-pressure fan used in this air scrubber has a speed of 16,000 rpm and is quite loud. To mitigate this issue, I've created an electronics box that houses some circuitry to reduce the fan's speed using an ESP8266, mosfets, and PWM. If you want to replicate this project, you'll need to use your programming skills to figure it out on your own. The ESP also senses when the printer extruder starts moving, allowing it to initiate the fan automatically. When the print is complete (the extruder returns to its home position), the ESP sends a push notification and shuts down the fan. To assemble this project, simply 3D-print the parts and use some glue to hold them together. I'm sure you can figure out how to put the pieces together using the images provided. Here's a link to the high-speed fan used in this project: https://www.aliexpress.com/item/Free-Shipping-New-AVC-DFTA0676B2U-6076-6CM-high-speed-car-booster-violent-fans-12V-3A-60/32312855480.html