Does a "ETL Certified (Intertek)" label actually mean anything?
Intertek's safety mark for appliances. Tested to UL standards, legally equal to UL Listed in the US and Canada. Common on air fryers and kitchen appliances.
Renee · Founder & Lead Researcher, R3
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When you pick up an air fryer at a big-box store, the safety marks on the box can feel like alphabet soup. UL. ETL. cETLus. CSA. If you've spent any time researching the safest air fryers for your family, you've probably noticed that many models carry an ETL mark rather than the more familiar UL mark. That's not a downgrade. This guide explains exactly what the ETL Listed Mark means, why it carries equal legal authority to UL in the United States and Canada, and what questions it leaves unanswered that matter to families.
ETL stands for Edison Testing Laboratories - a name that traces directly to Thomas Edison. In 1896, Edison founded the Lamp Testing Bureau within his Edison Illuminating Companies to independently verify the safety and performance of electric lamps. By 1904 the organization was renamed Electrical Testing Laboratories. The name was eventually shortened to ETL, and by the late 1990s the business had been absorbed by Intertek, a multinational quality assurance company headquartered in London.
Intertek now operates one of the largest networks of testing and certification laboratories in the world. The ETL mark has been in continuous use for over 130 years, making it one of the oldest safety certification marks in the United States.
To understand why ETL and UL are legally equivalent, you need to understand the regulatory system they both operate within.
OSHA's Nationally Recognized Testing Laboratory (NRTL) program governs electrical product safety certification in the United States. Under 29 CFR 1910.303 and related electrical safety standards, electrical equipment used in workplaces must be "listed" by an NRTL. The National Electrical Code (NEC Article 110.3) extends this requirement to residential installations. Any mark from any OSHA-recognized NRTL is legally sufficient to prove a product has been listed for safety.
Intertek Testing Services NA, Inc. (ITSNA) is an OSHA-recognized NRTL. So is UL Solutions. So are roughly 20 other organizations including CSA Group, Bureau Veritas, Nemko North America, and SGS North America. Every NRTL tests to the same published safety standards - primarily ANSI/UL standards - and every NRTL mark carries identical legal weight under the NEC and OSHA regulations. A local inspector, retailer, or authority having jurisdiction (AHJ) is required to accept an ETL mark anywhere they would accept a UL mark.
For Canada, Intertek is accredited by the Standards Council of Canada (SCC) as both a Testing Organization and a Certification Body. Products bearing a "c" prefix (cETL) or the combined cETLus mark meet Canadian Standards Association requirements and are accepted by Canadian Electrical Inspection authorities.
The ETL mark appears in three configurations depending on the target market:
ETLus ("us" subscript only): Certified for the United States market. Tested to ANSI/UL standards. Recognized by OSHA, NEC authorities, and US retailers.
cETL ("c" prefix only): Certified for the Canadian market. Tested to CSA standards. Recognized by the Standards Council of Canada and Canadian Electrical Inspection.
cETLus (both "c" and "us"): Dual-certified for both the US and Canadian markets in a single mark. This is the most common format on consumer appliances sold at major North American retailers. Most air fryers sold at Walmart, Target, Amazon, Costco, Home Depot, and Best Buy carry either the cETLus mark or a UL equivalent.
If both marks are legally equivalent, why doesn't every brand just use UL? The answer is commercial, not technical.
UL Solutions (formerly Underwriters Laboratories) develops its own proprietary safety standards and runs its own testing laboratories. Because UL owns the standards it tests to, the certification process tends to be more time-consuming and more expensive. Industry sources consistently cite ETL certification as 20-40% less expensive than UL certification, with a turnaround time of 2-3 weeks faster.
For brands launching products in high-volume, fast-moving consumer categories - like air fryers, where new models arrive every year and margins are thin - that cost and speed difference is meaningful. Brands like Cosori, Chefman, Dash, and many others that manufacture in China and sell at aggressive price points have consistently chosen ETL certification as their compliance pathway. Higher-end brands manufacturing at lower volume sometimes choose UL for the name recognition among consumers who may not understand that both marks are equal.
The safety testing applied is identical. Both pathways require testing to UL 1026 (Standard for Safety for Electric Household Cooking and Food Serving Appliances), which covers electrical construction, insulation, overcurrent protection, heat exposure, mechanical strength, and leakage current. Intertek also conducts quarterly unannounced factory inspections to verify that production units continue to match the tested design - the same ongoing surveillance model UL uses.
The specific safety standard applied to most basket-style air fryers is UL 1026, Edition 6 (most recently revised September 2023). The standard covers:
Electrical construction: Wiring gauge, insulation rating, grounding paths, and terminal connections must meet defined minimums to prevent shock and fire under normal and fault conditions.
Overcurrent and thermal protection: Air fryers must incorporate thermal cutoff devices that shut down the unit if internal temperatures exceed safe thresholds. This protects against both fire and injury from surface temperatures.
Leakage current: Maximum allowable leakage current under normal operation is tightly defined. Excess leakage indicates insulation breakdown that could cause shock.
Heating element construction: Elements must withstand rated wattage continuously and must not cause ignition of surrounding materials if they fail.
Mechanical construction: Handles, baskets, and structural components must withstand defined loads. Basket release mechanisms must require intentional actuation to prevent accidental drops.
Markings: The appliance must carry clear markings including rated voltage, wattage, model number, and manufacturer information - which are required to be traceable in Intertek's product directory.
Note that UL 1026 does not cover coating chemistry, PFAS content, food-contact material toxicity, or electromagnetic emissions. Those fall under separate regulatory frameworks (FDA 21 CFR for food contact, FCC Part 15 for EMI).
This is the section parents most need to read.
ETL certification - like UL certification - is strictly an electrical and mechanical safety assessment. It tells you the appliance is unlikely to shock you, catch fire, or fall apart under normal use. It does not evaluate:
Coating chemistry and PFAS content: Whether the air fryer basket's nonstick coating contains PTFE (Teflon), PFOA, or other per- and polyfluoroalkyl substances is outside the scope of UL 1026 and ETL certification. A product can be ETL Listed and still have a PTFE-coated basket that degrades above 260 degrees Celsius. See our PFAS guide for the coating safety question.
Food-contact material safety: FDA 21 CFR governs which coatings and plastics are approved for direct food contact. ETL certification does not verify FDA compliance - those are separate requirements manufacturers must independently meet.
Performance accuracy: Temperature calibration, cooking time accuracy, and energy efficiency are not ETL test criteria. An ETL-certified air fryer that runs 30 degrees hotter than its dial indicates is still ETL-certified.
Long-term durability: Testing is conducted on new-condition samples. Coating wear, handle fatigue, or basket degradation over years of use is not tested.
FCC electromagnetic compliance: ETL handles electrical safety. FCC Part 15 certification (required for the digital controls in modern air fryers) is a separate authorization.
Families shopping for the safest air fryers need both ETL/UL certification (to confirm electrical safety) and separate verification of coating materials (to confirm PFAS safety). Neither mark alone tells the full story.
Intertek offers two distinct ETL programs that look similar but mean different things:
ETL Listed: The core safety certification described throughout this guide. Testing to ANSI/UL safety standards. Required (or equivalent required) for retail sale at major US and Canadian retailers. This is the mark you see on air fryers and kitchen appliances.
ETL Verified: A performance or attribute claim certification - for example, that a product meets energy efficiency targets, emission reduction claims, or specific material standards. ETL Verified marks are supplemental and do not substitute for ETL Listed status.
When evaluating an appliance, confirm the mark says "Listed" (with the Intertek diamond logo and the appropriate "us"/"c" designation). A Verified mark on its own does not satisfy the safety listing requirement.
Counterfeit and misapplied safety marks are a real problem in the consumer electronics supply chain. Before purchasing any appliance - especially lower-priced models from unfamiliar brands - it takes 60 seconds to confirm the ETL listing is real.
Intertek maintains a free, publicly searchable directory of all ETL Listed products at the Intertek ETL Listed Mark Directory (ramuk.intertekconnect.com). You can search by manufacturer name, model number, or certification standard. A legitimate ETL listing will show the manufacturer name, the model or product family, the applicable safety standard (e.g., UL 1026), and the certification date.
If a product claims ETL certification but does not appear in the directory, or if the model number listed differs from the physical product, treat that as a red flag. Major brands with long certification histories (Cosori, Chefman, Instant Brands, Ninja) will have extensive directory entries. A recently launched brand with no directory presence for its specific model warrants caution.
For US-sold products: verify the mark includes the "us" designation. For Canada: verify the "c" designation. For dual-market products: look for cETLus.
For parents buying air fryers and kitchen appliances, ETL certification answers one specific question: will this appliance shock me, overheat dangerously, or catch fire under normal use conditions? That question matters. Uncertified appliances - particularly those imported and sold without any NRTL mark - have a documented history of electrical failures, fires, and recalls.
But ETL certification is the floor of safety evaluation, not the ceiling. The complete picture requires:
A highly rated, well-reviewed air fryer that carries a valid ETL mark and a verified PFAS-free stainless steel or ceramic basket represents the safest combination for family kitchens. The ETL mark is a necessary condition for our recommendations at R3 - but not sufficient on its own.
On air fryers, the ETL mark tells you the electrical assembly -heating element, wiring, controls, thermal cutoffs -was independently verified before the product reached market. It does not tell you anything about the basket coating. Families need to check both: ETL (or UL) for electrical safety, and PFAS-free verification for coating safety. Our air fryer ratings layer both requirements into our scoring.
ETL certification itself does not address health concerns -it is an electrical and mechanical safety standard, not a toxicological review. The health-relevant questions for air fryers (coating chemistry, PFAS content, food-contact material safety) are outside ETL's scope entirely. The absence of ETL certification on an appliance does create a safety risk, as uncertified electrical products have a documented history of shock hazards, electrical fires, and thermal failures. For coating-related health concerns on air fryers, see the PFAS guide and PTFE/Teflon guide.
United States: Intertek Testing Services NA, Inc. (ITSNA) is recognized by OSHA as a Nationally Recognized Testing Laboratory (NRTL) under 29 CFR 1910.7. The ETL Listed Mark satisfies the 'listed' requirement under the National Electrical Code (NEC) Article 110.3 and OSHA electrical safety standards (29 CFR 1910.303). No federal law requires ETL specifically -any NRTL mark (UL, ETL, CSA, Bureau Veritas, etc.) satisfies the listing requirement. Major retailers including Walmart, Target, Amazon, Costco, Home Depot, and Best Buy have independent supplier requirements that mandate NRTL certification before accepting products for sale.
Canada: Intertek is accredited by the Standards Council of Canada (SCC) as a Testing Organization and Certification Body. Products bearing the cETL or cETLus mark satisfy Canadian Electrical Code and provincial inspection requirements. The mark is accepted by all Canadian electrical inspection authorities.
No mandatory federal requirement for consumer appliances: The Consumer Product Safety Improvement Act (CPSIA) and Consumer Product Safety Act (CPSA) do not require NRTL certification as a precondition for sale of general household appliances. However, retailer requirements and building code requirements (which apply at installation) effectively make NRTL certification a market access requirement. CPSC does separately regulate children's products, which requires a General Conformity Certificate (GCC) -a distinct requirement from ETL/UL electrical safety certification.
Who is most at risk
Look for these
Watch out for
What this does NOT cover
Coating chemistry and PFAS/PTFE content in nonstick baskets or surfaces Food-contact material toxicology (FDA 21 CFR is a separate requirement) Performance accuracy -temperature calibration, cooking time, or energy efficiency Long-term durability or coating wear over years of use FCC electromagnetic compliance (requires separate FCC Part 15 authorization) Children's product chemical safety (requires CPSC GCC certification separately) Taste, odor, or migration of materials into food at normal cooking temperatures Environmental impact, sustainability, or recyclability claims
How to verify
1. Locate the ETL mark on the appliance label or packaging -confirm it says 'Listed' and includes the appropriate 'us'/'c'/cETLus designation for your market. 2. Note the manufacturer name, model number, and the 4-6 digit file number printed near the mark. 3. Visit the Intertek ETL Listed Mark Directory at ramuk.intertekconnect.com (or search 'Intertek ETL directory' for the current URL). 4. Search by manufacturer name or model number. Confirm the listing exists, the model matches, and the applicable standard (e.g., UL 1026 for air fryers) is shown. 5. If the model is not in the directory, or if the listed model number differs from the physical product, contact Intertek at 888-347-5478 or email inspectr@intertek.com before purchasing. Note: Major established brands (Cosori, Chefman, Ninja, Instant Brands) maintain extensive, easily verifiable directory entries. Difficulty finding a listing is a meaningful warning sign for lesser-known brands.
ETL Listed (Intertek)
OSHA-recognized NRTL mark. Tests to ANSI/UL standards. 20-40% lower cost and 2-3 weeks faster than UL. Legally equivalent in US and Canada. Preferred by high-volume, price-competitive brands.
UL Listed (UL Solutions)
OSHA-recognized NRTL mark. UL both develops and tests to its own standards. Higher name recognition with consumers. Legally equivalent to ETL. Common among premium and US-manufactured brands.
CSA Certified (CSA Group)
OSHA-recognized NRTL in the US; SCC-accredited in Canada. Originated in Canada, strong dual-market recognition. Legally equivalent to UL and ETL in both countries.
CE Mark (European)
Manufacturer self-declaration of compliance with EU directives. Not issued by an independent testing laboratory. Not recognized by OSHA, NEC, or Canadian Electrical Code. Does not satisfy US or Canadian retail requirements.
No mark
No independent safety verification. Associated with elevated risk of electrical failure, fire, and shock. Blocked from sale at all major US and Canadian retailers. Avoid.
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Yes -legally and technically equivalent. Both ETL (Intertek) and UL (UL Solutions) are recognized by OSHA as Nationally Recognized Testing Laboratories. They test to the same ANSI/UL safety standards. A product with an ETL mark and a product with a UL mark have both passed the same electrical safety requirements. The only difference is which laboratory performed the testing. Local code officials, retailers, and electrical inspectors are required to accept either mark.
Cost and speed. ETL certification typically costs 20-40% less than UL certification and can be completed 2-3 weeks faster. For brands in competitive, high-volume categories like air fryers -where margins are thin and new models launch every year -that difference matters commercially. Many major air fryer brands manufactured in China choose ETL as their US compliance pathway for exactly this reason. It is not a safety shortcut; the testing rigor is identical.
The 'c' indicates the product also meets Canadian Standards Association (CSA) requirements and is certified for the Canadian market. 'us' indicates US certification. The combined cETLus mark means the product is dual-certified for both the US and Canada in a single listing -the most common format on air fryers and kitchen appliances sold at North American retailers like Walmart, Target, and Amazon.
No -this is the most important misconception to correct. ETL certification (and UL certification) covers electrical and mechanical safety only. It does not evaluate coating chemistry, PFAS content, or food-contact material toxicology. An air fryer can be ETL Listed and still have a PTFE (Teflon) nonstick basket. Families need to separately verify coating materials -look for a brand's explicit PTFE-free and PFAS-free claim, ideally backed by independent test data. Our PFAS guide covers this in detail.
Visit Intertek's free ETL Listed Mark Directory at ramuk.intertekconnect.com. Search by manufacturer name or model number. Confirm the listing exists, the model number matches the physical product, and the applicable safety standard (UL 1026 for air fryers) is shown. If you cannot find the listing, or if the model number in the directory doesn't match, contact Intertek at 888-347-5478 before purchasing. Counterfeit safety marks exist on marketplace platforms -60 seconds of directory verification is worth doing for any unfamiliar brand.
Legally in most jurisdictions, yes -there is no federal consumer law that prohibits purchasing an uncertified household appliance for personal use. However, uncertified appliances carry meaningful elevated risk: they have not been independently tested for electrical construction, insulation adequacy, thermal protection, or overcurrent protection. Insurance claims for fires or electrical damage from uncertified appliances may be denied. All major US and Canadian retailers require NRTL certification before accepting products for sale, so truly uncertified products typically arrive through gray-market channels.
No federal law requires NRTL certification specifically for general-use household appliances. However, OSHA's electrical standards and the National Electrical Code create effective requirements for commercial installations, and major retailer requirements (Walmart, Target, Amazon, Costco, Home Depot, Best Buy all require NRTL certification from suppliers) make it a practical market access requirement. Any air fryer sold at mainstream retail in the US will carry ETL, UL, or an equivalent NRTL mark.
ETL Listed is a safety certification -the product was tested to ANSI/UL safety standards and passed. ETL Verified is a separate program for performance or attribute claims, such as energy efficiency targets or specific material properties. ETL Verified does not satisfy the safety listing requirement. When evaluating an appliance, confirm the mark specifically says 'Listed' with the Intertek diamond logo and the appropriate 'us'/'c' designation. A Verified mark alone is not a safety certification.