Barrier, containment, and eyewear selection should be validated by your on-site Laser Safety Officer (LSO) based on applicable standards and real operating conditions—not assumptions.
Every setup is different, and proper safety design depends on your specific environment.
Quick Answer: What Do Most Setups Use?
For many hand-held fiber laser welders in the 1–3 kW range, a typical safety setup includes:
Laser welding safety helmet (appropriate OD + welding shade) — always
A containment system such as:
portable laser barriers,
fixed curtain systems, or
rigid panel (hardwall) barriers
In some setups: window protection (transparent viewing panels or non-transparent coverings) where line-of-sight exposure is possible
In many cases, 625 W/cm² rated barrier material is used to contain the surrounding area, while higher-rated systems (up to 2500 W/cm²) are selected when additional protection or more defined containment is required.
Final selection should always be based on the specific setup and reviewed by your in-house Laser Safety Officer (LSO).
In practice, most laser welding setups fall into a few common containment approaches—along with appropriate laser welding eye protection (laser + welding arc).
Portable laser barrier systems (portable):
Flexible and easy to reposition, these are ideal for changing work areas or shared spaces.Laser curtain systems (fixed perimeter):
Designed for defined welding zones, curtain systems help establish a consistent containment boundary.Rigid panel (hardwall) barrier systems (portable):
Provide higher levels of protection and can still be folded and stored when not in use, while also offering a more structured setup.
Here’s how to decide.
Hand-held fiber laser welders are now one of the most common Class 4 laser systems in industrial environments.
One of the most common questions we get is simple:
What safety equipment do I actually need?
For many laser welding applications, that means thinking through both eye protection (helmet/face shield) and containment of the surrounding area.
If you're looking to understand why both PPE and containment are required, see our full guide here.
Start Here: The Main Containment Options
For laser welding environments, customers typically choose between three practical containment options:
Typically mounted on wheels or freestanding frames
Portable and easy to reposition
Can be deployed quickly around a work area
Best for:
Shops that need flexibility
Moving between jobs or stations
Temporary or evolving setups
Typically mounted to walls, ceiling tracks, or posts
Can be used to section off or enclose an area
Often include openings with Velcro or overlapping sections for access
Best for:
Creating a defined welding area
Sectioning off part of a shop
Semi-permanent containment with flexibility
Solid panel systems with greater structural rigidity
Portable modular panels that can be assembled, moved, and reconfigured
Can be connected into longer runs (e.g., 20–30 ft spans)
Can be folded and stored compactly when not in use
Typically offer higher levels of protection, depending on material
More durable over time
Higher cost
Best for:
Applications where higher protection is desired
Setups where durability is important
Customers who want a more substantial system
How These Systems Actually Get Set Up
Laser barrier systems are typically configured around the workspace rather than treated as one-size-fits-all products.
Depending on the application, systems can be designed with:
Wall-mounted sections
Freestanding posts
Wheeled mobile barriers
Joined curtain runs
Openings for access
3-sided or larger containment layouts
That flexibility is often one of the main advantages, especially in welding environments where access, workflow, and floor layout matter.
Pro Tip: Start at Lower Power and Work Up
If you’re just getting started with a laser welding system, it’s often best to begin at lower power and gradually increase until you reach your desired weld.
Starting at higher power levels can increase the potential for reflections and stray energy, especially while dialing in your process.
As you gain experience with your setup, you’ll develop a better sense of the appropriate operating range.
Laser Welding Face Protection
Containment is only part of the equation. Face protection is still required for laser welding operations (for both the laser and weld arc).
Operators often need to choose between different viewing plate options depending on brightness and visibility needs, for more information see here.
Hand Protection
For most laser welding applications, standard welding gloves are appropriate for hand protection.
These are designed to handle:
heat
spatter
contact with hot materials
As with all safety equipment, glove selection should be reviewed by your Laser Safety Officer (LSO) based on the specific application and operating conditions.
A Note on Fiber Laser Power
Many hand-held fiber laser welders fall roughly in the 1 kW to 3 kW range, typically operating in the 1060–1080 nm (near-IR) wavelength range, though systems can extend beyond that.
Even so, containment selection is not based on laser power alone.
It depends on factors such as:
beam delivery
distance
reflectivity of the material
process geometry
layout of the workspace
Our barrier material is available in different protection levels to accommodate a range of setups.
Softwall barrier and curtain systems are rated at 625 W/cm² and are commonly used in many laser welding environments to contain the surrounding area.
Rigid panel (hardwall) systems are rated up to 2500 W/cm², offering a higher level of protection along with a more structured containment solution.
Selection between these options ultimately depends on the specific setup, desired level of protection, and how the workspace is configured.
Windows, Viewing Areas, and Laser Welding
In many laser welding environments, it’s important to consider visibility into the work area—especially when operations are near windows, viewing panels, or shared spaces.
If the welding process is visible from outside the controlled area, additional protection may be required to prevent unintended exposure.
Depending on the application, this can include:
Used when visibility into the process is required while still providing protection. These are commonly used for machine enclosures or designated viewing panels.
Laser safety window coverings (non-transparent):
Used to fully block line-of-sight where visibility is not needed, such as facility windows, doors, or open areas.
In addition to direct line-of-sight, reflections from metal surfaces can introduce laser energy beyond the immediate welding area, including toward nearby windows or open viewing areas which is why both containment and visibility considerations are important when designing a safe setup.
As with all safety controls, the need for window protection should be evaluated based on the specific layout and reviewed by your Laser Safety Officer (LSO).
**Quick Decision Guide**
- Need flexibility and mobility → portable barrier systems
- Creating a defined welding area → curtain systems
- Want higher protection and durability → hardwall panel systems
The Most Important Concept: You Are Designing Contain The Laser Energy
This is one of the biggest misunderstandings in laser welding safety.
Containment systems are generally not selected because they are expected to take repeated direct beam exposure in normal operation.
Instead, they are used to help contain:
scattered radiation
diffuse reflections
stray energy outside the weld zone
intense visible welding light
Although when tested, the barrier and curtain material are tested for direct hits for 100 seconds.
We've included an image demonstrating the difference between a direct hit and diffused radiation:
Here is a second image demonstrating the concept laser safety containment:
Understanding the Different Zones
One helpful way to think about laser welding safety is in terms of zones:
Laser welding conditions can vary depending on surface conditions and nearby materials.
Laser welding safety eyewear and appropriate engineering controls should always be used when lasers are in operation.
Rayleigh length and beam divergence vary depending on the laser system, wavelength, and focusing optics (zones start and stop depending on each laser in use).
The distances shown are illustrative; actual reflection hazards may extend farther depending on system configuration and laser parameters. The point at which beam intensity begins to follow the inverse-square behavior also varies.
Why 625 W/cm² Material Is Used
Our barrier material has been tested at:
625 W/cm² irradiance
with a 4.25 mm beam
for up to 100 seconds
This testing represents a direct exposure condition at a defined irradiance level.
In practice, these systems are typically used to contain the surrounding area, not to act as a primary stop for direct beam exposure during normal operation.
Depending on the setup, this level of performance may be well in excess of many real-world perimeter exposure conditions—but that will always vary based on the application.
General Guidance (Application Dependent)
For many hand-held fiber laser welding applications in the ~1 kW to 3 kW range, materials in this performance range are often used as part of a containment strategy.
However, suitability depends on:
working distance
beam interaction
enclosure geometry
reflectivity
and overall system design
This is why evaluation should always be tied to the actual application.
Common Mistakes
Assuming a standard welding screen provides laser protection
A welding screen may control visible light, but that does not automatically mean it provides suitable laser containment.
Assuming you must design around full laser power at the perimeter
That is often not the right way to think about welding containment.
Assuming wattage alone determines the right barrier
Actual exposure conditions matter more than headline power alone.
Important Safety Note
Barrier and containment selection should always be reviewed by a Laser Safety Officer (LSO) in accordance with applicable laser safety standards and the actual operating conditions of the system.
Every setup is different.
Need Help?
If you are trying to determine the right containment approach for your laser welding setup, we can help you think through the application and recommend a practical solution based on your layout and process.