DIY 3d Printed Air Purifier

You can make an air purifier yourself that is cheaper to build and cheaper to operate than the alternatives on the market. It removes smells and certain toxic gasses. You can wrap a cloth around it to also filter particles. The cloth can be washed and the charcoal can be regenerated by heating it up. Link to the CAD files:

https://www.printables.com/model/1271541-air-purifier-removes-smell-gas-vocs-particles