External Ventilation Adapters for Single 3D Printer Enclosure
Many people find the smell of plastic from a 3D printer to be particularly noxious, but there hasn't been that much research on the long or short-term health effects of exposure to 3D printer fumes. Because of the differing nature of the particles and compounds put into the air by different filaments, there's no standard way of filtering everything, especially since the smallest particles can't be caught by even the best HEPA filter.
If you only print occasionally the risk is low, but if you are going to be printing a lot (and especially for multiple printers), what the CDC recommends is to vent the 3D printer gasses to the outside, such as with one of our vents paired with a standard dryer hose. They can also hook to any DIY enclosure by simply creating the right size hole.
If you can't easily vent to the outside using a 3D printer air filter on your enclosure is the next best option as it will reduce the number of particles your lungs are exposed to. We also recommend running a free-standing air purifier in the same room.
Before proceeding, a quick word about nomenclature. The pieces that take you from a fan to a hose are called "fan to hose adapters". The pieces that take you from a hose to an outside vent are called "hose to vent adapters".
60mm Fan Configuration Example
80mm Fan Configuration Example
Here's an example setup with the CR-10/Taz6 vent kit. For this you'd need to order a hose, clamps, and dryer window vent from your hardware store.
The Prusa/Ender setup is a bit more complicated since window inserts are all 4", while the hose we recommend is 3". This setup adds an 3"->4" hose adapter, and the 3" hose is small and doesn't overwhelm the small enclosure. Note that with this setup you need 2 3" clamps and 1 4" clamp.
120mm Fan Configuration Example
With the 120mm fan, the configuration is different in that the fan is mounted on the exterior vent as it exits the room, not on the side with the printer. You would take the hose from your enclosure in 3 inches or 4-inch size, and connect it using a 3 inch or 4 inches to 120mm fan adapter. To make the fan fit on a 4-inch dryer vent you'd also need the 120mm Fan to 4-inch dryer vent adapter.
Every 3DUPfitters enclosure comes pre-drilled with the vent and mounting holes, but this kit adds the following:
To complete venting to the outside you can find flexible 4" dryer duct hoses or flexible 3" hoses online or at most hardware stores. This can be connected to the outside using the same techniques you'd use for a clothes dryer, or you can purchase one of the many compatible window-venting kits. These items are not included and must be purchased separately. We don't bother to stock them since they're readily available at local hardware stores.
The fan can either be plugged into a USB power supply (not included) or the wires stripped and connected directly into some models of 3D printer.