Custom Designed Air Purifier
Cost Effective Air Purification
Year
2025
Type of Project
Side Project
My Role
Project Lead
Case Study
Objective
Create an air purifier using open-source parts while also purifying air at a higher rate than the competition, without the bulk.
Process
I sourced a compact air filter that was inexpensive and readily available. For this, I used the IKEA STARKVIND air filter, as it is widely available around the world at a relatively stable price of $20 to $30, far lower than first-party filters.
I then designed the air filter around this air filter, utilizing a honeycomb pattern at the vents to provide structural integrity while reducing material costs. To optimize the space used on the PRUSA XL, I split the air filter in half, reducing the possibility of errors. I also integrated a USB-C port on the side to provide power, making it universal.
To flow air, I sourced ARCTIC P12 MAX fans, due to their low cost and availability, designing a metal laser-cut bracket to secure the 6 fans to. These fans are daisy-chained together to a PWM controller, which provides a knob control to adjust the fan speed. This controller is then soldered to the USB-C connector, powering the air purifier.
Outcome
The air filter achieves a rating of 350 CADR, cleaning a 350 square foot room 5 times per hour at half the price of the competition. The open source nature of the filter allows parts to be easily replaced as needed, compared to the issues with first-party filters.
Standout Features
Open Source
Easily Repairable
Powerful Performance
Low Cost