Diy Fume Extractor For Laser Cutter

DIY Fume Extractor for laser cutter LensDigital
DIY Fume Extractor for laser cutter LensDigital from


In recent years, laser cutters have become increasingly popular among hobbyists and professionals alike. These machines use a concentrated beam of light to cut through various materials with precision and ease. However, one common issue with laser cutters is the release of fumes and smoke during the cutting process. These fumes can be harmful if inhaled, which is why having a fume extractor is crucial. In this article, we will guide you on how to make your own DIY fume extractor for your laser cutter.

Why is a Fume Extractor Important?

When a laser cutter operates, it produces fumes and smoke from the materials being cut. These fumes contain potentially toxic chemicals, such as volatile organic compounds (VOCs) and particulate matter. Inhaling these fumes can lead to respiratory issues, eye irritation, and even long-term health problems. Having a fume extractor helps to minimize these risks by effectively removing the harmful pollutants from the air.

Materials Needed

Before we begin, let’s gather the necessary materials for building your DIY fume extractor:

  • A high-powered fan
  • Air duct tubing
  • Activated carbon filters
  • HEPA filters
  • Power supply
  • Mounting brackets
  • Fasteners
  • Power switch

Building Process

Now that we have our materials ready, let’s move on to the building process:

Step 1: Prepare the Fan

Begin by attaching the mounting brackets to the fan. These brackets will allow you to secure the fan to a stable surface, such as a wall or workbench. Make sure the brackets are securely fastened to prevent any accidents during operation.

Step 2: Connect the Air Duct Tubing

Next, connect one end of the air duct tubing to the outlet of the fan. The tubing should be long enough to reach your laser cutter, ensuring effective extraction of the fumes. Use fasteners to secure the tubing in place, ensuring a tight and secure connection.

Step 3: Install Activated Carbon Filters

Now, it’s time to install the activated carbon filters. These filters are designed to absorb and neutralize the harmful chemicals present in the fumes. Place the filters along the air duct tubing, ensuring they are securely attached. You may need to use additional fasteners to hold the filters in place.

Step 4: Attach the HEPA Filters

After the activated carbon filters, attach the HEPA filters. HEPA filters are highly efficient in removing fine particles and allergens from the air. They further enhance the air quality by capturing any remaining pollutants. Secure the HEPA filters in place using fasteners.

Step 5: Connect the Power Supply and Switch

Now, it’s time to connect the power supply and switch to the fan. Ensure that the power supply is compatible with the fan’s voltage requirements. The power switch will allow you to easily turn the fume extractor on and off as needed.

Step 6: Test and Adjust

Finally, test the fume extractor by turning it on and running your laser cutter. Check if the fumes are effectively being extracted and if the filters are working efficiently. Make any necessary adjustments to improve the extraction process.


By following these simple steps, you can create your own DIY fume extractor for your laser cutter. This extractor will help keep your workspace safe and free from harmful fumes and smoke. Remember to regularly clean and replace the filters to maintain optimal performance. Stay safe and enjoy your laser cutting projects!