...

Prevent Damage & Toxic Fumes: Which Material Should Never Be Cut by Laser? — An Expert’s 9-Point Checklist for 2025

Dec 10, 2025

Abstract

Laser cutting technology offers unparalleled precision and efficiency, but its application is not universal across all materials. A critical aspect of operational safety and equipment longevity involves understanding which material should never be cut by laser. Processing incompatible materials can result in severe consequences, including the release of highly toxic and corrosive fumes, irreversible damage to expensive laser systems, and significant fire hazards. For instance, materials containing chlorine, such as Polyvinyl Chloride (PVC), produce hydrochloric acid upon thermal decomposition, which is acutely harmful to both operators and the machine's optical and mechanical components. Similarly, other plastics like ABS and polycarbonate release hazardous gases and produce poor-quality, often melted or charred, results. This analysis provides a comprehensive examination of materials that are fundamentally unsuited for laser processing. It details the specific chemical and physical reactions that occur, the resultant dangers, and offers guidance on material identification and safer alternative processing methods to ensure a secure and productive workshop environment.

Key Takeaways

  • Never cut materials containing chlorine, like PVC, as they release corrosive hydrochloric acid gas.
  • ABS plastic produces cyanide gas, a potent poison, making it extremely hazardous to laser cut.
  • Coated metals can release toxic compounds from their coatings, requiring careful material verification.
  • Knowing which material should never be cut by laser is fundamental to operator safety and machine longevity.
  • Thick polycarbonate and fiberglass composites are poor candidates, leading to fire and toxic emissions.
  • Always consult the Material Safety Data Sheet (MSDS) if you are uncertain about a material's composition.
  • Foam materials, especially those with flame retardants, can release toxic fumes and pose a high fire risk.

Table of Contents

Understanding the Core Risks: Why Some Materials Are Forbidden

Before we embark on a detailed examination of specific substances, it is pedagogically useful to establish a foundational understanding of the "why." What is it about the interaction between a focused beam of light and a particular material that can transform a tool of creation into a source of hazard? The process of laser cutting is, at its heart, one of extremely localized and intense heating. The laser beam, whether from a fiber or CO2 source, transfers an immense amount of energy into a tiny spot, causing the material in that spot to vaporize, melt, or burn away. This process is known as ablation.

The suitability of a material for laser cutting hinges on how it behaves under this intense thermal stress. Ideal materials, like acrylic or untreated wood, vaporize cleanly into relatively benign components or char in a predictable way, leaving a smooth, finished edge. The problems arise when a material's chemical makeup is not conducive to this type of decomposition.

We can categorize the primary risks into three distinct but often overlapping domains of concern:

The Generation of Toxic and Corrosive Fumes

Think of a material not just as a solid object, but as a collection of chemical compounds held together by bonds. When a laser applies energy, it violently breaks these bonds. In many common plastics and composites, this decomposition liberates chemicals that are hazardous to human health and corrosive to machinery. The most infamous example is chlorine from PVC, which combines with hydrogen in the air to form hydrochloric acid gas. Inhaling this can cause severe respiratory damage, and its corrosive nature will attack the most sensitive parts of your laser cutter, including the lenses, mirrors, and metal components, leading to premature and costly failure. This is not a mere inconvenience; it is a fundamental threat to the operator and the investment.

The Inevitable Risk of Fire

Laser cutting generates significant heat. Materials that do not vaporize efficiently but instead have a low ignition temperature and a tendency to melt and char are serious fire risks. Foams, for example, can ignite and burn with an open flame that can quickly spread within the enclosed space of the laser cutter. Some materials can produce a sticky, molten residue that continues to smolder even after the laser has passed, creating a hidden fire hazard that may erupt unexpectedly. Proper ventilation is a safeguard, but it cannot be a substitute for the correct choice of material.

The Compromise of Cut Quality and Machine Integrity

Beyond the immediate dangers of fumes and fire, some materials simply react poorly to the laser's energy, resulting in an unacceptable finished product. Instead of a clean, precise cut, you may be left with a melted, charred, or discolored mess. Thick polycarbonate, for instance, tends to absorb the laser's energy and discolor, producing a yellowed, sooty edge rather than a clean one. This not only ruins the workpiece but also creates a buildup of soot and residue on the machine's optics and motion system, demanding frequent, intensive cleaning and eventually leading to degraded performance. The question of which material should never be cut by laser is therefore not just one of safety, but also of quality and efficiency.

Hazardous Materials Quick Reference Guide

For a quick overview, this table summarizes materials to avoid, the dangers they pose, and safer alternatives that are well-suited for laser processing. This should serve as a starting point for your material verification process.

Material Name Primary Hazard(s) Key Harmful Byproduct(s) Suitable Laser-Cut Alternative
Polyvinyl Chloride (PVC) Extreme Machine Corrosion, Toxic Fumes Hydrochloric Acid (HCl), Dioxins Cast Acrylic
ABS Plastic Highly Toxic Fumes, Melts Badly Hydrogen Cyanide (HCN), Carbon Monoxide Cast Acrylic, Modified ABS
Thick Polycarbonate Fire Hazard, Extreme Discoloration Carbon Monoxide, Soot Thinner Polycarbonate, Cast Acrylic
HDPE (High-Density Polyethylene) Melts, Catches Fire Easily, Poor Cut Molten plastic drips, Carbon Monoxide Cast Acrylic, PETG
Coated Carbon Fiber Toxic Fumes, Respiratory Irritation Epoxy/Resin Fumes, Fine Dust Particulates Uncoated Natural Woods, Acrylic
Fiberglass (Glass-Reinforced Plastic) Toxic Fumes, Abrasive Dust Phenolic/Epoxy Resin Fumes, Glass Dust Plywood, Delrin (Acetal)
Polystyrene/Polypropylene Foam Extreme Fire Hazard, Toxic Fumes Styrene, Carbon Monoxide, Soot Specialized Laserable Foams (e.g., Polyethylene)
Coated Metals (Galvanized, Anodized) Toxic Fumes from Coating Zinc Oxide, Chromium Compounds Uncoated Metals (e.g., Mild Steel, Stainless Steel)
Artificial/Chrome-Tanned Leather Highly Toxic and Carcinogenic Fumes Hexavalent Chromium, Cyanide Compounds Vegetable-Tanned Leather, Cork, Fabric

The 9 Materials You Should Never Laser Cut

Let us now proceed with a more rigorous, point-by-point examination of the materials that pose the most significant risks. For each, we will explore its composition, the specific dangers it presents, and how to identify it, thereby arming you with the knowledge to protect your health and your equipment.

1. Polyvinyl Chloride (PVC)

Perhaps the most notorious material on any "do not cut" list, PVC is a synthetic polymer of vinyl chloride. It is ubiquitous in our modern world, found in everything from plumbing pipes and electrical insulation to signage, flooring, and packaging. Its low cost and durability make it an attractive material for many applications, which is precisely why it is so often mistakenly brought to the laser cutter.

The Chemical Betrayal: Releasing Hydrochloric Acid

The fundamental problem with PVC lies in its name: "Chloride." The polymer chain is rich in chlorine atoms. When a high-energy laser beam strikes PVC, the intense heat breaks the carbon-chlorine bonds. The liberated chlorine atoms are highly reactive and immediately bond with hydrogen atoms present in the surrounding air (which is rich in water vapor, H₂O) to form hydrogen chloride (HCl) gas. When this gas dissolves in moisture, such as on the moist surfaces of your lungs, eyes, or the microscopic water layer on your machine's components, it becomes hydrochloric acid—a highly corrosive substance.

Imagine giving your entire laser cutter an invisible acid bath. This is what happens when you cut PVC. The acidic vapor will:

  • Destroy the Optics: It will permanently damage the anti-reflective coatings on your focus lens and mirrors, leading to a rapid decline in cutting power and eventual failure.
  • Corrode Metal Components: The acid attacks any exposed metal, including the machine's frame, the guide rails, bearings, and the honeycomb cutting bed. This leads to rust and pitting, compromising the precision of the motion system.
  • Ruin Electronics: The corrosive fumes can seep into the control electronics, causing short circuits and component failure over time.

The damage is not always immediate but is cumulative and irreversible. A single small job cutting PVC can inflict hundreds or even thousands of dollars in damage, turning your precision fiber laser cutting machine into a maintenance nightmare.

The Health Hazard: A Poisonous Cloud

Beyond machine damage, the hydrochloric acid fumes are a severe health risk. Inhalation can cause immediate and painful irritation to the eyes, nose, throat, and respiratory tract. Higher concentrations can lead to pulmonary edema (fluid in the lungs), a life-threatening condition. Furthermore, the combustion of PVC can also generate dioxins, a group of highly toxic and carcinogenic compounds. The question of which material should never be cut by laser starts and often ends with PVC for these profound safety reasons.

Identification

  • Markings: Look for the recycling symbol with a "3" or the letters "V" or "PVC".
  • Beilstein Test (for advanced users with extreme caution): This involves heating a piece of copper wire, touching it to the plastic to pick up a small sample, and then introducing it to a flame. A green flame indicates the presence of chlorine. This test should only be performed in a well-ventilated area away from the laser cutter, with appropriate personal protective equipment (PPE), as it also releases hazardous fumes.
  • When in doubt, assume it is PVC and do not cut it.

2. Acrylonitrile Butadiene Styrene (ABS)

ABS is another incredibly common thermoplastic polymer. It is prized for its toughness and impact resistance, making it a favorite for 3D printing filaments, automotive parts, electronic housings (like computer keyboards and monitors), and children's toys like LEGO bricks. While it is a versatile material for molding and 3D printing, it is a terrible candidate for laser cutting.

The Deadly Fume: Hydrogen Cyanide

The primary danger of laser cutting ABS comes from its "Acrylonitrile" component. When subjected to the high heat of a laser, ABS does not vaporize cleanly. Instead, it melts, catches fire, and undergoes a chemical decomposition that releases a host of toxic substances, most notably hydrogen cyanide (HCN).

Hydrogen cyanide is a fast-acting and potent poison. It works by inhibiting cellular respiration, meaning it prevents the body's cells from using oxygen. Exposure to even low concentrations can cause dizziness, headache, and nausea. Higher concentrations can lead to convulsions, loss of consciousness, respiratory failure, and death. The risk is simply too great to justify its use in a laser cutter, which would require a prohibitively complex and specialized industrial ventilation system to manage safely.

Poor Cut Quality

In addition to the extreme toxicity, ABS performs very poorly under a laser. It has a low melting point and tends to produce a messy, gooey, and charred cut edge rather than a clean one. It leaves behind a significant amount of sticky residue that is difficult to clean and can foul the machine's motion system.

Identification

  • Markings: Look for the recycling symbol with a "9" or the letters "ABS".
  • Smell (with caution): When heated (e.g., with a soldering iron in a ventilated area), ABS gives off a harsh, acrid, burnt plastic smell.
  • Acetone Test: A drop of acetone will quickly dissolve or soften the surface of ABS plastic.

3. Thick Polycarbonate (Lexan)

Polycarbonate, often known by the brand name Lexan or Makrolon, is a wonderfully strong and impact-resistant transparent plastic. It is used for safety glasses, machine guards, and "bulletproof" glass. One might assume that since it can be laser cut, it is a safe material. This is a dangerous oversimplification.

The Fire and Soot Problem

While very thin polycarbonate (under 1mm) can sometimes be cut with a laser, it is a problematic process. The material does not vaporize cleanly. Instead, it absorbs the laser's energy, causing it to discolor and turn a charred yellow or brown. More dangerously, it has a tendency to ignite and sustain a flame.

Imagine trying to cut a block of butter with a red-hot knife. Instead of a clean slice, you get a melted, smoking mess. This is analogous to laser cutting thick polycarbonate. The material catches fire, producing a large amount of black, sooty smoke. This soot is not only messy but also highly flammable and can coat the inside of your machine, including the optics, leading to reduced performance and a significant fire hazard.

The cut quality is exceptionally poor, and the process is a liability. For any thickness over 1mm, laser cutting should be avoided entirely.

Identification

  • Markings: Look for the recycling symbol with a "7" or the letters "PC".
  • Flexibility: It is extremely durable and can be bent cold without cracking, unlike acrylic which is much more brittle.
  • Transparency: It is often used where high impact resistance is needed, such as in safety applications.

4. HDPE and Other "Melty" Plastics

High-Density Polyethylene (HDPE) is the familiar, waxy-feeling plastic used to make milk jugs, plastic bags, and cutting boards. It is a member of the polyolefin family, which also includes Low-Density Polyethylene (LDPE) and Polypropylene (PP).

A Molten, Flaming Mess

The issue with these plastics is simple: they melt. Extensively. They do not vaporize under the laser beam. Instead, they turn into a sticky, molten puddle that resolidifies into a messy, rough edge. The cut quality is abysmal.

More critically, this molten plastic is highly flammable. It can drip down through the cutting bed, still on fire, and ignite any residue or waste material in the collection tray below. The flame is often difficult to extinguish and produces a lot of smoke. It is one of the most direct fire hazards you can introduce into your machine. The question of which material should never be cut by laser often includes HDPE not because of uniquely toxic fumes (though the smoke is still unhealthy), but because of the sheer mess and fire risk.

Identification

  • Markings: HDPE is "2", LDPE is "4", and PP is "5" in the recycling symbol.
  • Feel and Flexibility: HDPE often feels waxy to the touch. It is flexible but tough.
  • Water Test: Polyolefins like HDPE and PP will float in water, whereas most other plastics (PVC, PET, Acrylic) will sink.

5. Coated Carbon Fiber and Fiberglass

Carbon fiber and fiberglass are composite materials. They consist of a fabric (carbon or glass fibers) embedded within a binder, which is typically a thermosetting resin like epoxy or a phenolic resin.

The Double Danger: Abrasive Dust and Toxic Resin Fumes

Cutting these materials with a laser presents two distinct dangers.

First, the binder resin is the primary concern. When heated, epoxy and phenolic resins release a complex mixture of toxic fumes, including benzene, phenols, and other irritants. These fumes are harmful to the respiratory system and can cause long-term health problems. The smell is often intensely unpleasant and acrid.

Second, while the laser can vaporize the resin, it struggles with the carbon or glass fibers themselves. This can result in a frayed, messy cut. More importantly, it can create a fine dust of carbon or glass particles. Glass dust is highly abrasive and will act like sandblasting for your machine's optics and precision mechanical parts. Inhaling these fine fibers can also cause serious and permanent lung damage (silicosis for glass, and other respiratory ailments for carbon).

For these reasons, composites bound with epoxy or phenolic resins are a definite "no."

Identification

  • Appearance: Carbon fiber has a distinctive woven black or dark gray appearance. Fiberglass is often semi-translucent or opaque and you can sometimes see the fibrous texture.
  • MSDS: Always request the Material Safety Data Sheet from the supplier. It will list the binder material.

6. Any Material Containing Halogens, Epoxy, or Phenolic Resins

This is a broader category that serves as a crucial rule of thumb. It encompasses the materials we have already discussed but also serves as a catch-all for unknown composites and plastics.

Expanding the Forbidden List

  • Halogens: This group of elements includes Fluorine (F), Chlorine (Cl), Bromine (Br), and Iodine (I). We have seen the danger of Chlorine in PVC. Other halogenated plastics, like Polytetrafluoroethylene (PTFE, or Teflon), release extremely toxic fumes (including hydrogen fluoride, which forms hydrofluoric acid) when burned. As a rule, if a material contains a halogen, it is not safe for laser cutting.
  • Epoxy and Phenolic Resins: As mentioned with composites, these binding agents are common in many industrial materials, circuit boards (like FR-4), and high-pressure laminates. They all outgas toxic and often carcinogenic fumes when subjected to the laser's heat.

This principle underscores the importance of knowing the exact chemical composition of your material. It is not enough to know its trade name; you must know what it is made of.

7. Polystyrene and Polypropylene Foam

Foam materials are lightweight and consist of a polymer matrix with trapped gas bubbles. Polystyrene foam is recognized as Styrofoam, while polypropylene foam is a more flexible, resilient material.

The Ultimate Fire Hazard

These materials are exceptionally dangerous to laser cut, primarily due to the immense fire risk. They have very low melting points and ignite almost instantly. Because the material is mostly trapped air, a flame can propagate through it with astonishing speed, turning the entire sheet into a fireball within seconds. This fire will be hot, produce copious amounts of thick, black, toxic smoke, and can easily overwhelm the machine's exhaust system and cause a major workshop fire.

The smoke from burning polystyrene contains styrene, a suspected carcinogen, and carbon monoxide. The cut quality is also nonexistent, as the material simply melts and burns away from the laser beam. Under no circumstances should these foams be placed in a laser cutter.

8. Coated Metals

While many metals are perfectly suited for cutting on an appropriate laser system, the coatings applied to them can introduce significant hazards.

The Hidden Danger in the Coating

  • Galvanized Steel: This is steel coated with a layer of zinc for corrosion protection. When a laser cuts through this material, the zinc coating is vaporized, creating zinc oxide fumes. Inhaling these fumes can cause "metal fume fever," an illness with flu-like symptoms such as fever, chills, nausea, and headache (boc.com.au). While usually temporary, it is a deeply unpleasant and avoidable occupational illness.
  • Anodized or Chromed Metals: Metals coated with other substances, particularly those containing chromium, are also hazardous. As discussed in the context of leather, heating chromium can produce hexavalent chromium, a known carcinogen ().

Laser engraving on anodized aluminum is generally safe, as it only ablates the dye in the anodized layer, not the metal itself. However, cutting through coated metals is a different and more hazardous process. Always verify the nature of the coating before attempting to cut.

9. Artificial or Chrome-Tanned Leather

Leather seems like a natural material, and it is often laser cut and engraved successfully. However, the type of leather is critically important.

Not All Leather is Created Equal

  • Artificial Leather (Pleather): Many artificial leathers are made from PVC or other plastics. As we have established, cutting these will release hydrochloric acid and other toxic chemicals. It is essential to confirm that any "faux" leather is not PVC-based.
  • Chrome-Tanned Leather: A common method for tanning leather uses chromium salts. If you laser cut chrome-tanned leather, you risk vaporizing these chromium compounds and creating hexavalent chromium fumes, which are highly toxic and carcinogenic.

Only vegetable-tanned leather, which uses natural tannins from plants, is considered safe for laser cutting. It produces a smell like burnt hair (which is unpleasant but not toxic) and engraves beautifully. Always confirm the tanning method with your supplier.

A Deeper Dive into Safe Practices

Understanding which material should never be cut by laser is the most important step, but it is part of a larger culture of safety. Owning and operating a powerful tool like a laser cutter carries a responsibility to yourself, your employees, and your equipment.

The Golden Rule: "When in Doubt, Don't Cut"

This simple mantra can save you from catastrophic mistakes. If you receive a new material from a supplier and you are not 100% certain of its composition, do not put it in the laser. It is always better to delay a job and verify the material than to risk a toxic gas release, fire, or permanent damage to your machine.

The Power of the MSDS

The Material Safety Data Sheet (MSDS), or simply Safety Data Sheet (SDS), is your most powerful tool. Any reputable material supplier is legally obligated to provide this document upon request. The MSDS will list the material's composition, its hazards, and its behavior under heating or combustion. Look for keywords like "hazardous decomposition products" or "combustion byproducts." If you see terms like "hydrogen chloride," "hydrogen cyanide," "phosgene," "chromium," or "halogens," the material is not safe for your laser cutter.

Ventilation is Not a Cure-All

A common misconception is that a powerful exhaust fan makes it safe to cut hazardous materials. This is incorrect. While a good ventilation system is absolutely essential for removing the allowable smoke and fumes from safe materials like wood and acrylic, it is not designed to handle highly toxic or corrosive gases. These gases can still damage the exhaust system itself and, more importantly, will simply be vented outside, potentially harming the environment and your neighbors. A proper system for hazardous fumes is an industrial-grade chemical scrubber, which is far beyond the scope of a typical workshop.

Alternative Cutting Methods for Problematic Materials

Just because a material is unsuitable for laser cutting does not mean it is unusable. Other fabrication methods are often better suited for these materials.

Material Recommended Cutting Method(s) Advantages of Alternative Method Disadvantages/Considerations
PVC CNC Router, Mechanical Saw (e.g., band saw, table saw) No toxic fumes, fast for straight cuts. Produces dust/shavings, may require edge finishing.
Thick Polycarbonate CNC Router, Waterjet Cutter, Mechanical Saw Excellent edge finish (CNC/Waterjet), no burning. CNC can be slower, Waterjet is a wet process.
ABS CNC Router, Mechanical Saw No toxic fumes, clean edges. Produces dust, requires good work holding.
HDPE CNC Router, Mechanical Saw, Waterjet Cutter Very clean cuts, no melting. Slower than laser, requires clamping.
Carbon Fiber / Fiberglass Waterjet Cutter, Diamond-coated Saw/Router bit No heat/fumes, clean edge, no delamination. Wet process, abrasive dust control for CNC.

Understanding these alternatives allows you to select the right tool for the right material, ensuring both safety and a high-quality result. Your workshop is a system of capabilities, and the laser, while powerful, is just one part of that system.

Frequently Asked Questions (FAQ)

1. What is the single most dangerous material to try and laser cut?

Without a doubt, Polyvinyl Chloride (PVC) is the most dangerous common material. The hydrochloric acid it produces upon combustion is a severe threat to both the operator's health and the laser machine itself. The damage to optics and mechanical components can be rapid and irreversible.

2. I have a plastic sheet, but I don't know what it is. How can I safely check if it's laser-safe?

The safest method is to obtain the Material Safety Data Sheet (SDS) from the supplier. If that is not possible, look for a recycling code. Codes 3 (PVC) and 9 (ABS) are unsafe. Code 6 (Polystyrene) is also unsafe. Code 1 (PETG) and Acrylic (often code 7, but must be specified as Acrylic) are generally safe. If there are no markings, you cannot be certain. Do not cut it. Applying a hot copper wire (Beilstein test) can detect chlorine (green flame), but this test itself is hazardous and should be done with extreme caution.

3. Can't my ventilation system handle the fumes from materials like ABS or PVC?

No. Standard laser cutter exhaust systems are designed to remove smoke and particulate matter from approved materials like wood and acrylic. They are not chemical scrubbers. They cannot neutralize toxic gases like hydrogen cyanide or corrosive vapors like hydrochloric acid. Venting these gases simply moves the hazard from inside your workshop to the outside environment, and the corrosive elements will still damage your fan and ductwork on the way out.

4GN. I've heard you can laser cut thin polycarbonate. Is this true?

Yes, it is physically possible to cut very thin sheets of polycarbonate (typically less than 1mm or 0.040"). However, it is not recommended. The material tends to absorb the laser's energy, resulting in a yellowed, sooty, and poor-quality cut edge. It also has a high risk of catching fire. For clean, precise cuts in polycarbonate, a CNC router is a far superior tool.

5. Are all-natural materials like leather and wood always safe to laser cut?

Not necessarily. While untreated wood is generally very safe, pressure-treated wood contains chemicals (historically, arsenic and chromium) that can release toxic fumes. Similarly, while vegetable-tanned leather is safe, chrome-tanned leather can release carcinogenic hexavalent chromium. Always verify the source and any treatments applied to a "natural" material before cutting.

6. What about laser engraving coated metals like a Yeti tumbler?

This is generally a safe process. Most powder-coated or anodized consumer products use coatings that ablate cleanly without producing highly toxic fumes. The laser removes the thin coating to expose the metal underneath. However, this is different from cutting through a coated metal sheet, such as galvanized steel, which vaporizes a much larger amount of the coating and poses a greater risk.

7. Why is fiberglass a problem? Isn't it just glass?

Fiberglass is a composite material, meaning it is glass fibers held together by a resin, usually epoxy or a phenolic resin. The glass itself is not the main issue (though the fine dust is an abrasive and respiratory hazard). The real danger comes from burning the resin, which releases a cocktail of toxic and carcinogenic fumes. The combination of abrasive dust and toxic fumes makes it a material to avoid.

A Final Word on Vigilance

The allure of the laser cutter is its versatility. It feels like a magical device capable of bringing any digital design to life. However, this versatility is bounded by the laws of chemistry and physics. Respecting these boundaries is not a limitation on your creativity; it is the very practice that preserves it. By diligently identifying your materials, understanding the risks, and never hesitating to choose a different tool when the laser is not appropriate, you protect your health, your community, and the longevity of the advanced fiber laser cutters that are the heart of your operation. A knowledgeable operator is a safe and successful operator. Treat every new material with a healthy dose of suspicion, and you will ensure a long and productive relationship with your machine.

References

BOC. (n.d.-a). Chromium in fume. BOC Australia. Retrieved October 26, 2025, from

BOC. (n.d.-b). Metal fume fever. BOC Australia. Retrieved October 26, 2025, from https://www.boc.com.au/shop/en/au/metal-fume-fever

Dapeng Laser. (2025, April 23). Laser Machine – Laser Equipment Manufacturer. DPLASER. Retrieved from

Han's Laser. (2025). Industrial Laser Systems | Laser Welders & Engravers. Han's Laser US. Retrieved from

Senfeng. (2025, May 24). Laser cutting materials: What can & can’t be cut. Senfeng Laser. Retrieved from https://www.senfenglasers.com/knowledge/laser-cutting-materials-what-can-cant-be-cut.html

Senfeng. (2024, August 14). 10 technological advantages of SENFENG sheet metal laser cutters. Senfeng Laser USA. Retrieved from https://www.senfenglaserusa.com/news/10-technological-advantages-of-senfeng-sheet-metal-laser-cutters/

Suda Laser. (2025). Laser Cutting Machine Manufacturer Since 1992. Suda Laser. Retrieved from

U.S. Department of Labor. (n.d.). Hydrogen Cyanide. Occupational Safety and Health Administration (OSHA). Retrieved October 26, 2025, from

U.S. Department of Labor. (n.d.). Hydrogen Chloride. Occupational Safety and Health Administration (OSHA). Retrieved October 26, 2025, from