CO2 vs. Fiber Laser: How to Pick the Right Protective Eyewear

If you work with CO2 or fibre lasers, eye protection is not optional—it’s a must. Every time you turn on your OMTech laser, you are exposed to light that can cause permanent eye damage. Whether you are running a business or engraving as a hobby, the right safety glasses keep you safe.

Laser beams are powerful, but it’s not just the direct beam you need to worry about. Reflections from metal, glass, or even wood can bounce back into your eyes. Scattered light can also build up over time and hurt your vision. That is why picking the right glasses is one of the most important safety steps in your workshop.

The Risks of Laser Exposure

Laser beams from CO2 and fibre systems are very strong. Even a split second of exposure can damage your eyes. Think about looking straight at the sun. A laser is like that, only more focused and more dangerous.

Each laser works at a different wavelength. This means glasses for one type will not protect you from another. A pair that works for a diode laser will not block a CO2 laser or fibre laser.

Here’s why proper eyewear matters:

• Vision loss can happen in seconds.
• Reflected beams are unpredictable.
• Scattered light adds up over time.

The good news? Quality laser safety glasses are easy to get and easy to use.

Eyewear Options by Laser Type

When choosing glasses, always start with the laser you own. Here’s a simple guide:

1. CO2 Laser Glasses

CO2 lasers give off infrared light at around 10,600 nm. You need glasses made for this range. These glasses stop both direct and reflected beams.

2. Fibre Laser Goggles

Fibre lasers work in the near-infrared range, usually around 1064 nm. Glasses for CO2 will not work here. You need eyewear clearly rated for fibre laser protection.

3. Diode Laser Glasses

Diode lasers run at shorter wavelengths, such as 445 nm or 808 nm. Glasses for these must block visible or near-infrared light at the correct OD rating.

4. Multi-Wavelength Glasses

Some glasses cover more than one wavelength. These are useful if you work with more than one type of laser. But you still need to check that they match your exact machine specs.

Tip: Never assume. Always check the label and match the wavelength.

How to Choose the Right Laser Safety Glasses

Buying laser glasses can feel confusing, but it doesn’t have to be. Just follow these steps:

Step 1: Identify Your Laser

Check your machine type—CO2, fibre, or diode. If you’re using OMTech, you can find this in your manual or on the product page.

Step 2: Match the Wavelength and OD Rating

The OD (Optical Density) rating shows how well the glasses block light. For CO2, you need high OD in the far-infrared range. For fibre, look for OD protection around 1064 nm.

Step 3: Look for Certification

Make sure the glasses meet ANSI (US), EN (Europe), or similar safety standards. Certified glasses are tested for real-world use, not just advertised as “laser safe.”

Step 4: Check Comfort and Fit

You’ll be wearing these often. Glasses with adjustable arms, soft padding, and lightweight frames make a big difference during long jobs.

Step 5: Inspect and Replace as Needed

Scratched or cracked glasses won’t protect you. Keep them clean and replace them when they show wear.

Using Your OMTech Laser Safely

OMTech lasers are built for precision and power. But even the best machine can’t keep you safe without proper eyewear. The answer to “Do I need glasses for laser engraving?” is always yes. And not just for you—anyone near your machine should wear them.

Here are some basic rules:

• Wear glasses every time the laser is on.
• Ask visitors or team members to wear them too.
• Keep a pair close to your machine at all times.
• Put safety instructions where they’re easy to see.

Extra Safety Tips for Your Workshop

Laser safety goes beyond glasses. Build safe habits into your routine:

• Create a clear work zone around your laser.
• Keep records of when you check or replace safety gear.
• Teach staff, students, or helpers how to use safety glasses.
• Clean your workspace often to stop dust and reflections.
• Follow OMTech updates for the latest safety advice.

FAQ: Laser Eyewear

Q: Do I need glasses if I only use my fibre laser sometimes?
A: Yes. Even one exposure can cause lasting damage. Always wear fibre-rated glasses.

Q: How can I tell if I’ve picked the right glasses?
A: Match your laser type, wavelength, and OD rating. Check certification. Make sure they fit well.

Q: Can I use one pair of glasses for both CO2 and fibre?
A: Only if they are clearly marked for both wavelengths. Always confirm with the specs.

Q: How often should I replace my laser glasses?
A: Replace them if they get scratched, cracked, or lose clarity. Follow the maker’s guidelines.