A 2940nm Er:YAG fractional laser is an ablative skin-resurfacing laser whose wavelength sits at the absorption peak of water. It vaporizes micro-columns of superficial skin tissue to treat scars, wrinkles, enlarged pores and epidermal pigmentation, with shallow thermal damage and faster recovery than deeper ablative lasers. The Pmise-E01 delivers 50-2500mJ pulse energy through a 1-6mm adjustable spot.
Pmise-E01
A 2940nm Er:YAG fractional laser is an ablative skin-resurfacing machine built around an erbium-doped YAG crystal whose 2940nm wavelength sits exactly at the absorption peak of water. Because tissue is vaporized in a very shallow, precisely controlled layer, it is often chosen as a gentler CO2 alternative for treating scars, wrinkles, enlarged pores and epidermal pigmentation. The machine suits dermatology clinics, medical aesthetic centers and distributors that need an ablative resurfacing platform with short recovery times and suitability for all Fitzpatrick skin types. The Pmise-E01, the single model in this range, delivers 50-2500mJ pulse energy through interchangeable focusing and fractional treatment tips.
The 2940nm Er:YAG fractional laser resurfaces skin by instantly vaporizing microscopic columns of tissue at the wavelength where water absorption is strongest. The 2940nm fractional laser is a solid pulse laser for precise skin treatment: because 2940nm is the absorption peak of water, the laser instantly heats the target skin to over 300°C and gasifies the tissue without damaging the surrounding skin. In theory gasification occurs within about 30μm, while thermal damage in the surrounding tissue is limited to 30-50μm, so the laser exfoliates only shallow skin tissue. This helps the skin recover faster, causes only slight thermal damage and keeps the rate of post-treatment hyper-pigmentation low. Clinically it works through exfoliation, so it applies to all Fitzpatrick skin types.
2940nm Er:YAG vs 10600nm fractional CO2: at 2940nm the water absorption coefficient is far higher — water absorbs the Er:YAG beam about 16 times more effectively than the CO2 laser's 10600nm wavelength, so no exfoliation plateaus occur as observed with CO2 lasers. Vaporization is therefore shallower and confined to the superficial layers, leaving less residual heat in the skin, which means a shorter recovery period and lower hyper-pigmentation risk. A fractional CO2 laser machine penetrates deeper for stronger dermal collagen remodeling, and the two technologies can be used in conjunction to enhance overall efficacy.
For deep pigmented lesions and tattoo removal, see our Q-switched Nd:YAG laser machine; for non-ablative photorejuvenation, compare the IPL skin rejuvenation machine.
The three most common fractional resurfacing wavelengths solve different problems. Use this table to match the technology to your patient base before requesting a quotation.
| Technology | Best for | Depth / wavelength | Downtime | Suitable buyer |
| Er:YAG 2940nm (Pmise-E01) | Superficial scars, mild-moderate wrinkles, enlarged pores, epidermal pigmentation | 2940nm; shallow ablation, thermal damage limited to 30-50μm | Short | Clinics wanting an ablative CO2 alternative with fast recovery, all Fitzpatrick types |
| Fractional CO2 laser | Deeper scars, stretch marks, stronger dermal collagen remodeling | 10600nm; deeper penetration than Er:YAG | Longer than Er:YAG | Clinics treating severe scarring that accept a longer recovery period |
| 1550nm erbium glass fractional laser | Acne scars, wrinkles, stretch marks, gradual texture improvement over a course | 1550nm; non-ablative, epidermis stays intact | Minimal | Clinics and medspas wanting a no-ablation acne scar laser option |
| Pmise-E01 | |
| Laser Type | Er:YAG Laser |
| Laser Wavelength | 2940nm |
| Pulse Energy | 50-2500mJ |
| Spot Size | 1-6mm adjustable, 70-100μm fractional focal spot |
| Pulse Width | 200μs, 500μs, 1ms, 1.5ms, 2ms |
| Repetition Rate | 1-2Hz |
| Input Power | 1200W |
| Power Supply | AC220V 50Hz / AC110V 60Hz |
Get factory price and full technical specifications for Pmise-E01 ›
Every Pmise-E01 laser is backed by a one-year warranty starting from the date of receipt, followed by lifetime maintenance. Technical consulting is answered within 30 minutes and quotations are issued within 12-24 hours. Pmise maintains an expert team of more than 50 specialists and over 100 technicians, arranges door-to-door service at least twice a year, and its R&D department of 28 engineers holds 10 patents. Machines are exported to America, Europe, the Middle East, Africa and Southeast Asia, with the power supply configured for the destination market.
A 2940nm Er:YAG fractional laser is used for ablative skin resurfacing. Typical indications include atrophic, hypertrophic and nodular scars, mild to moderate wrinkles, enlarged pores, epidermal pigmented lesions and photoaged skin. Because vaporization stays superficial, it delivers visible texture improvement while keeping thermal damage to surrounding tissue very low.
At 2940nm, water absorbs laser energy about 16 times more effectively than at the CO2 laser's 10600nm wavelength. The Er:YAG therefore vaporizes tissue in a shallower, more precise layer with less residual heat, giving shorter downtime and a lower hyper-pigmentation rate, while fractional CO2 penetrates deeper for stronger collagen remodeling.
Downtime is short compared with deeper ablative lasers. The micro-lens fractional technology limits thermal damage to roughly 30-50μm of surrounding tissue, so the treated skin exfoliates and recovers quickly. Multi-point focusing allows safe treatment with minimal thermocoagulation, and follow-up sessions can generally be scheduled at one-to-two-week intervals.
Yes. Clinically the 2940nm Er:YAG laser works through exfoliation rather than pigment absorption, so it applies to all Fitzpatrick skin types. The shallow, water-targeted vaporization produces only slight thermal damage, which keeps the rate of post-treatment hyper-pigmentation low even in darker skin.
The number of sessions depends on the indication and its severity; superficial pigmentation may respond faster than deep atrophic scars. Treatments are generally scheduled at intervals of one to two weeks per session, and your practitioner will design a full course after assessing the skin condition and the desired result.
Choose the Er:YAG 2940nm when your patients want superficial resurfacing with short downtime: it suits all Fitzpatrick skin types and keeps hyper-pigmentation risk low. Choose fractional CO2 for deeper scars and stronger collagen remodeling. Many clinics run both platforms and use them in conjunction to enhance overall efficacy.
The Pmise-E01 is covered by a one-year warranty from the date of receipt and lifetime maintenance after that. Technical consulting questions are answered within 30 minutes, quotations are issued within 12-24 hours, and a team of more than 100 technicians supports installation, operator guidance and routine servicing.
The price of an Er:YAG fractional laser machine depends on configuration, handpieces and order quantity. Pmise manufactures the E01 and supplies clinics and distributors factory-direct at competitive wholesale prices. Send your requirements through the contact form below to receive a detailed quotation, current price list and delivery terms.
Treatment results vary by skin type, indication and operator settings. Professional operator training is required before clinical use.
We guarantee every product through our rigourous testing.
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