Laser engraver exhaust
Join your laser exhaust to any hose, fan, or window vent.
Pick your machine's port size. Pick your fan or vent size. We print one PETG adapter that joins them, so you skip the duct tape. Made in the USA when you order.
PETG · Friction fit, no clamps · Made in the USA
How it works in three steps
Measure across the exhaust port on your machine. Write down the size.
Match your port size to your hose or fan size. Pick that pair below.
Each end is a friction fit. It pushes on and holds with no clamps in most setups.
Common setups
Each one is a real part, priced and ready. Pick the pair that matches your port and your duct, then add it to your cart.
Vent to a 4 inch hose or window
The most common setup. Adapt your machine port to a standard 4 inch hose, then run it to a window vent.
A small port near 2 inches, out to a 4 inch hose.
A 2.5 inch port, out to a 4 inch hose.
A 3 inch stock hose, out to a 4 inch hose or vent.
Both ends 4 inch. Join two lengths or add a coupler.
Step up to a 6 inch inline fan
A 6 inch inline fan is a popular upgrade. These pairs step your machine port up to fit one.
A small 2 inch port, up to a 6 inch fan.
A 2.5 inch port, up to a 6 inch fan.
A 3 inch port, up to a 6 inch fan.
A 4 inch port, up to a 6 inch fan.
How to measure your exhaust port
The exhaust port is the pipe or hole where the air leaves your machine. You need its size to pick the right pair.
Measure across the opening, not around it. A tape or a caliper works. Ports vary a little by brand, so pick the closest pair and measure again before you order.
The distance across the outside edge of the port. Use this when your adapter slides over the port.
The distance across the hole. Use this when your adapter slides inside the port.
Common laser setups people ask about
Here are sizes people report for popular machines. Use them as a starting point, not a promise.
| Setup | Port size reported | A pair to start with |
|---|---|---|
| Creality Falcon, Falcon 2 | about 2 to 3 in | 2 in to 4 in Straight Adapter → |
| xTool P2, S1, F1 | about 2 to 3 in | 3 in to 4 in Straight Adapter → |
| Glowforge and similar | about 4 in | 4 in Straight Adapter → |
| DIY open frame builds | usually a 4 in cutout | 4 in Straight Adapter → |
These sizes come from maker forums and product listings, not our own tools. Ports change by model and year. Measure your port before you order.
Where does the air go?
Run the far end of the duct to the outside. An open window or a wall vent both work.
A window vent kit seals the gap around the hose. Many kits use a 4 inch hose, so a 4 inch end fits right in.
Your size is not listed?
Build the exact pair you need. Set your machine end and your duct end, and we print it to size.
Build your adapterWhat is a laser engraver exhaust adapter?
A laser engraver exhaust adapter is a short fitting. One end matches your machine port. The other end matches your hose, fan, or window vent.
It joins two sizes that do not fit on their own. We print each one in PETG to your two sizes, so the joint is snug with no duct tape.
Frequently asked questions
How do I vent a laser engraver?+
Run a hose from the machine port to an open window or a wall vent. An inline fan pulls the air through the hose. Our adapter joins the machine port to the hose or fan size you have.
What size is a laser engraver exhaust port?+
It changes by machine. Many ports are near 2 to 4 inches. Measure across the opening on your machine, then pick the pair that matches.
Do I need duct tape to connect the fan?+
No. Each end is a friction fit, printed to the size. It pushes on and holds with no tape or clamps in most setups.
Can I connect a small port to a 6 inch fan?+
Yes. Pick a pair like 2 to 6 or 4 to 6. The adapter steps your machine port up to a 6 inch fan.
What is the adapter made of?+
PETG. It stands up to shop heat and holds a tight size. Each one is printed in the USA when you order.
My size is not listed. What do I do?+
Use the builder. Set your machine end and your fan end, and it makes the part to your two sizes.