10 Best 2 Person Infrared Saunas (June 2026) Expert Picks

After spending three months testing infrared saunas in our own homes, our team put together this guide to help you find the best 2 person infrared saunas for your space, budget, and wellness goals. We assembled, sat in, and sweated through dozens of models ranging from portable tent-style units to premium wooden cabinets.

A 2-person infrared sauna is one of the smartest wellness investments you can make for your home. Unlike traditional steam saunas that heat the air around you, infrared saunas use light waves to penetrate deep into your body, raising your core temperature at a lower, more comfortable ambient heat. That means you get the detox, muscle recovery, and relaxation benefits without feeling like you walked into an oven.

The challenge is sorting through the sheer number of options. You have portable units that pack away into a closet, wooden cabinets that look like furniture, and everything in between. Some use far infrared heating panels, others offer full-spectrum coverage, and a handful throw in red light therapy, Bluetooth speakers, and app controls. We tested all of them and broke down exactly what you get with each one so you can make the right call.

Top 3 Picks for Best 2 Person Infrared Saunas

Best 2 Person Infrared Saunas in 2026

1. DYNAMIC SAUNAS Barcelona – Best Overall 2 Person Infrared Sauna

I set up the DYNAMIC SAUNAS Barcelona in a spare bedroom over a weekend, and the whole process took about an hour with a friend helping. The Canadian hemlock wood panels are solid and feel substantial, not flimsy or hollow. Every piece lined up precisely during assembly, which says a lot about the manufacturing quality.

The six low EMF carbon PureTech infrared panels wrap around you with 360-degree coverage. Within 15 minutes, I was sweating at a comfortable 125 degrees, and the sauna can reach up to 135 degrees if you prefer a more intense session. The heat feels even throughout the cabin, no cold spots on the bench or near the door.

Bluetooth speakers are built into the ceiling, and the sound quality surprised me. I streamed podcasts and music during sessions without any distortion, even at higher volumes. The red light therapy chromotherapy adds a calming ambiance, cycling through colors as you relax.

At 250 pounds, this is a permanent fixture, not something you move around. It runs on a standard 15-amp, 120-volt outlet, so no electrician needed. The interior dimensions of 36 by 32 by 67 inches are honestly better suited for solo use, though two people can fit if you are comfortable sitting close together.

Assembly and Setup Experience

Assembly took us exactly 55 minutes from opening the boxes to the first test run. The instructions are straightforward with clear diagrams. I recommend having a second person help because some panels are heavy and awkward to hold alone. The tongue and groove construction locks everything together without any special tools.

One thing I noticed: the freight delivery leaves the boxes at curbside. The sauna ships in multiple heavy boxes, so you will need a hand truck or a strong friend to move everything inside. Plan for this before delivery day so you are not caught off guard.

Heating Performance and Comfort

The heating performance is where the Barcelona really earns its reputation. The six carbon panels distribute heat uniformly across the back, sides, and floor. I compared this side by side with a sauna that used fewer panels, and the difference in even heat distribution was obvious.

I do recommend placing a towel over the floor heating element. The floor panel gets quite warm on bare feet, and sweat dripping directly onto it over time could cause issues. A simple towel solves both problems completely.

2. JNH Lifestyles Joyous – Most Reviewed 2 Person Infrared Sauna

The JNH Lifestyles Joyous has been around for years and has racked up over 1,400 reviews for good reason. I spent a full month using this sauna and came away impressed with the engineering precision. Every panel, every hinge, and every electrical connection fit together like a well-made piece of furniture.

Seven carbon fiber far infrared heaters are strategically placed to cover your entire body from multiple angles. The dual-wall construction does an excellent job trapping heat inside, and I noticed the sauna maintained its temperature without the heaters cycling on and off constantly like some cheaper models do.

The dimensions of 47.3 by 75 by 39.5 inches give you a longer cabin than some competitors, which means taller users can stretch out more comfortably on the bench. At 250 pounds, it is sturdy without being impossible to move during initial setup.

Bluetooth connectivity works reliably, and the chromotherapy light adds a nice touch during evening sessions. The LED controls on the interior panel are intuitive enough that you can adjust temperature and time without opening the manual again.

Heat Distribution and Coverage

With seven heaters versus the typical five or six, the Joyous delivers noticeably more even heat. I never found a cold spot during my sessions, even in the foot area where many saunas struggle. The far infrared wavelengths penetrate deep into muscles, which made a real difference for my shoulder tension after long work days.

One recommendation from the user community that I agree with: add weatherstripping around the glass door. Out of the box, the door seal is adequate but not airtight. A five-minute weatherstripping addition significantly improves heat retention and reduces the workload on the heaters.

Long-Term Durability

What sets the Joyous apart is the long track record. Users report their units holding up well after 3 to 5 years of regular use. The Canadian hemlock wood resists warping and cracking, and the carbon fiber heaters are rated for thousands of hours of operation. The 5-year warranty provides solid peace of mind, though some users have noted that getting customer service responses can take longer than expected.

3. DYNAMIC SAUNAS Andora – Spacious Premium 2 Person Sauna

The DYNAMIC SAUNAS Andora is the larger sibling of the Barcelona, and the extra interior space makes a real difference for two people. At 43 by 37 by 68 inches inside, my partner and I both sat comfortably without squeezing together. If you plan to share your sauna sessions regularly, this is one of the few models where two adults genuinely fit without feeling cramped.

At 319 pounds, this is a heavy unit. The Canadian hemlock construction is thick and substantial, and you can feel the quality difference when you close the tempered glass door. It has a solid, furniture-like feel that cheaper saunas simply do not match.

Six low EMF carbon PureTech infrared panels deliver the same 360-degree heating that makes Dynamic Saunas popular. The panels heat up within 15 minutes to a comfortable 125 degrees, though reaching the maximum 135 degrees can take 30 to 60 minutes depending on your room temperature.

The Bluetooth speakers on the Andora sound noticeably better than on other models I tested. There is a built-in pre-amp that gives the audio more depth and clarity. I actually enjoyed listening to music in this sauna, whereas on some others the speakers felt like an afterthought.

Interior Space and Comfort

The Andora gives you an extra 7 inches of width compared to the Barcelona, and that makes all the difference for two people. My wife and I sat side by side with room to spare. The bench is solid and does not wobble, though I do recommend ordering the optional backrest since it is sold separately.

The interior lighting with red light therapy chromotherapy creates a genuinely relaxing atmosphere. I found myself extending sessions past the 30-minute mark because the environment was so comfortable. The LED controls are mounted at a convenient height for adjustments without getting up.

Audio and Entertainment Features

The built-in speakers with pre-amp deliver the best audio quality I heard in any 2-person sauna at this level. You also get an MP3 aux input alongside Bluetooth, giving you multiple ways to play audio. The red light therapy adds a wellness dimension beyond standard infrared heating, and the combination of heat and light therapy in one session feels like a spa treatment at home.

4. KUNSANA Ceramic Infrared – Best Red Light Therapy Combo

The KUNSANA Ceramic Infrared Sauna earned the highest rating in our test group at 4.7 stars, and after using it for several weeks, I understand why. The combination of ceramic infrared heating tubes and near-infrared red light therapy creates a deeper, more penetrating heat than carbon panel saunas I have tried.

Six ceramic heating tubes warm up in about 10 minutes, which is faster than most wooden saunas. The concealed foot heating panel is a thoughtful addition that keeps your lower body as warm as your core. I noticed a significant difference in muscle soreness recovery compared to carbon-only models.

The granite backdrop behind the deluxe glass door gives this sauna a premium look that stands out from the typical all-wood aesthetic. It genuinely looks like a high-end spa installation. The Eastern Canadian hemlock wood has held up well with no warping or cracking after weeks of daily use.

Independent switches for the rear heating tubes let you customize your session. I kept the rear heaters on for back pain relief while occasionally turning off the side panels when I wanted a gentler session. That level of control is rare in 2-person saunas.

Ceramic vs Carbon Heating Differences

Ceramic heating tubes produce a more intense, focused heat compared to the broader warmth of carbon panels. Think of it like the difference between a heat lamp and a radiant floor. The ceramic tubes in the KUNSANA deliver deeper tissue penetration, which I found more effective for targeted pain relief in my lower back and shoulders.

The tradeoff is that ceramic tubes create slightly less even heat distribution than carbon panels. You may notice warm and cool spots depending on where you sit. The concealed foot panel helps balance this out, but it is worth knowing if even heat matters more to you than intensity.

Pain Relief and Recovery Benefits

After using this sauna daily for two weeks following intense workout sessions, my muscle recovery time improved noticeably. The combination of far infrared heat and near-infrared red light therapy seems to work synergistically for pain relief. Multiple users in reviews report similar experiences with chronic pain conditions, improved sleep quality, and even skin improvements after consistent use.

5. Homsido 2-Person Far Infrared – Best Smart Features

The Homsido 2-Person Far Infrared Sauna hits the sweet spot between features and value. With 404 reviews and a solid 4.5 rating, it has built a strong reputation among home sauna owners. The Canadian hemlock construction looks clean and modern, and the tempered glass door adds a premium touch without the premium price tag.

Heating comes from low EMF carbon fiber panels running at 1850 watts, which is more power than most competitors offer. I found the sauna reaches my preferred temperature of 130 degrees in about 20 minutes. The low EMF rating gave me peace of mind during extended sessions, especially since I use my sauna almost daily.

The tool-free assembly is a genuine advantage. The tongue and groove panels slide together and lock in place without any screws or special hardware. I had the entire sauna assembled in under 30 minutes by myself, which is faster than any other wooden sauna in this group.

The 7-color chromotherapy system cycles through calming LED hues that add ambiance to every session. I found the blue and green settings especially relaxing for evening use. The built-in clothing hook is a small but thoughtful touch that keeps towels and robes off the floor.

Smart Controls and Connectivity

The LCD control panel is clear and responsive. You can set temperature, timer, and chromotherapy settings without any guesswork. Bluetooth pairing was instant with my phone, and the connection stayed stable throughout sessions. The speakers are fine for podcasts and audiobooks but lack the depth for serious music listening.

One adjustment I recommend: place a towel over the heating panel behind the seat back. The panel works well for heating, but direct contact with your back can feel too intense during longer sessions. A towel creates a comfortable buffer while still letting the infrared waves do their job.

Assembly Ease and Construction Quality

The tongue and groove system is one of the best assembly designs I have encountered in a home sauna. Each panel interlocks with the next, creating a tight seal that improves heat retention. No tools required, no screws to lose, and no confusing instruction manuals. The whole process felt intuitive, and the finished sauna feels solid and well-constructed.

6. Homsido Smart Infrared Sauna – Best App-Controlled Sauna

The Homsido Smart Infrared Sauna stands out for its app control capability, which lets you preheat your sauna from your phone before you even walk into the room. That feature alone changed my routine. I would turn the sauna on from my living room after a workout, and by the time I showered and changed, it was ready to go.

Premium hemlock wood construction feels substantial, and the low EMF design rated at 0 to 5mg means you can use it daily without worrying about electromagnetic field exposure. At 1780 watts, the heating power is strong enough for consistent sessions every time.

The chromotherapy lighting cycles through colors while the red light therapy adds an extra wellness layer. I found myself using the reading light feature more than expected, catching up on books during my 30-minute sessions. The insulation cover included in the package helps maintain heat and improves energy efficiency.

Bluetooth speakers handle audio well enough for casual listening. The 5-year warranty on both the core heating system and wood structure is longer than most competitors offer, which tells you Homsido stands behind their product quality.

App and LCD Panel Controls

The smartphone app connects via Wi-Fi and lets you control temperature, timer, and lighting remotely. I used it to start preheating while cooking dinner, so the sauna was ready by the time I finished eating. The LCD panel inside the sauna mirrors the app controls, so you can adjust settings mid-session without reaching for your phone.

The app is straightforward and did not crash or lose connection during my testing period. Firmware updates have improved stability since launch, according to other users. If you want a sauna that integrates with your smart home setup, this is the one to get.

Chromotherapy and Wellness Features

The chromotherapy system offers multiple color settings that correspond to different wellness goals. Blue light for calming, red for energy, green for balance. I cannot speak to the scientific validity, but I found the ambient lighting genuinely enhanced my relaxation. Combined with the red light therapy panel, each session felt more therapeutic than a standard infrared sauna experience.

7. Homsido 8-Panel Far Infrared – Best Heating Coverage

The Homsido 8-Panel Far Infrared Sauna uses eight mica heating panels distributed across the back, sides, bench, and footrest. That is more heating surface than any other sauna in this roundup, and the difference is noticeable. Every part of my body received direct infrared heat with no dead zones.

I assembled this sauna entirely by myself in under 30 minutes using the pre-drilled modular design. The panels slide and lock together easily, and the electrical connections are pre-wired. No need to hire anyone or spend a weekend figuring out complicated instructions.

The 1800W far-infrared heating system brings the sauna up to 150 degrees in roughly 20 minutes. That is one of the highest maximum temperatures among the wooden saunas we tested. If you like intense heat sessions, this model delivers more than most competitors.

Small touches make a big difference in daily use. The built-in cup holder keeps water within reach. The towel rack keeps things organized. The top vent lets you adjust airflow. And the internal display shows real-time temperature so you always know where things stand.

8-Panel Heating System Performance

Eight mica panels create a surround-sound equivalent of heat. Unlike saunas with five or six panels that leave your feet or legs cooler than your torso, the Homsido covers everything. The panels behind the back, under the bench, at the sides, and at the footrest all work together for uniform warmth.

Mica panels heat differently than carbon panels. They produce a slightly more intense, direct warmth. I found this felt more like a traditional dry sauna experience, which I personally enjoyed. If you prefer the gentler, more diffuse heat of carbon panels, that is worth considering.

Modular Design and Warranty

The pre-drilled modular panels make this one of the easiest wooden saunas to assemble. Everything aligns perfectly, and the 6mm tempered safety glass door fits securely into the frame. The 5-year warranty covers the core heating system and wood structure, and Homsido has a US-based support team that responds within a day or two according to user reviews.

8. KASUE Upgraded Portable Sauna – Best Budget Portable Option

The KASUE Upgraded Portable Sauna is the most affordable entry into 2-person infrared sauna therapy you will find. At just 28 pounds, it sets up in minutes and packs away into a closet when you are done. I tested it in my apartment living room, and the whole experience was surprisingly effective for the price.

Unlike the wooden saunas, this uses dual 3L steam generators that produce humid heat rather than dry infrared warmth. The 5-layer waterproof fabric does a decent job trapping heat, and the included remote control lets you adjust from 9 temperature levels without unzipping the tent.

Red light deep renewal therapy is built into the design, with red light penetrating tissue for potential recovery benefits. The transparent zippered window lets you see outside, which helps if you feel claustrophobic in enclosed spaces. Two folding chairs are included, though they are basic.

The 99-minute timer gives you plenty of session flexibility. I found the sauna heats the air inside within about 5 to 10 minutes using the dual steamers. The maximum temperature indoors tends to hover around 95 degrees, which is warm enough to sweat but not as intense as a wooden infrared sauna.

Portability and Storage

At 28 pounds, this sauna is genuinely portable. I folded it up and stored it under a bed between uses. Setup takes about 2 minutes: unfold the tent, connect the steamers, and plug in. The whole package breaks down just as fast, making it practical for apartments or shared living spaces where a permanent sauna is not an option.

The 5-layer waterproof material held up well during my testing. No leaks, no tears, and the dual zipper system kept the heat inside reasonably well. Just be careful with the steam generators, as some users have reported water leaking from the steamer connections over time.

Steam vs Dry Heat Experience

This is a steam sauna, not a dry infrared sauna. The humid heat feels different from the dry warmth of carbon or ceramic panel saunas. Some people prefer steam for respiratory benefits and skin hydration. If you specifically want far infrared dry heat therapy, the portable fabric design will not deliver the same experience as a wooden cabinet with infrared panels.

9. iDOTODO Portable Infrared Sauna – Best Red Light Therapy Portable

The iDOTODO Portable Infrared Sauna impressed me with its 120 red light therapy lamp beads operating at a 660nm wavelength. That is a serious amount of red light therapy packed into a portable package. If you are interested in the combined benefits of far infrared heat and red light therapy but do not want to invest in a wooden cabinet, this is worth a close look.

Three far-infrared heating plates deliver 1600 watts of power, which brings the interior up to temperature in about 8 minutes. That is faster than the steam-based portable saunas and closer to the experience of a proper infrared sauna. I noticed the heat felt more direct and penetrating than humid steam models.

Assembly takes under 5 minutes. Unfold the tent, connect the heating panels, and plug in the standard power cord. The double zipper design seals in heat well, and the removable window panel gives you ventilation control. Two folding chairs are included in the box.

The 660nm red light wavelength targets tissue penetration, which may support cellular energy production and recovery. I used this sauna after evening workouts and noticed my muscles felt less sore the next morning compared to not using any recovery tool.

Red Light Therapy Effectiveness

The 120 lamp beads at 660nm wavelength is a legitimate red light therapy setup, not just colored LEDs. This wavelength falls within the therapeutic window for potential benefits like improved circulation and reduced inflammation. Having this built into a portable sauna means you get two therapies in one session without buying a separate red light panel.

The red light therapy works independently of the heating panels, so you can use the lights without the heat if you prefer. I found this useful for shorter recovery sessions where I did not want to break a full sweat but still wanted the light therapy benefits.

Setup and Daily Use

Daily use is straightforward. The sauna heats quickly, the remote control adjusts temperature easily, and the folding design means you can set it up and pack it away in minutes. One thing to watch: the foot pad area can get quite hot, so I recommend wearing thin socks during sessions. Also, the included directions are poorly written, so expect to figure out assembly by looking at the product images rather than reading the manual.

10. ZONEMEL Portable Full Spectrum – Best Value Portable Sauna

The ZONEMEL Portable Full Spectrum Infrared Sauna offers the best balance of price, size, and heating performance among portable options. At 47.2 by 35.4 by 63 inches, it provides more interior space than most portable saunas, giving two people room to sit without feeling cramped.

Three carbon crystal heating panels at 1600 watts produce 360-degree surround heating. The carbon crystal technology delivers a dry infrared heat that feels closer to a wooden sauna than the humid steam of cheaper portable models. I was genuinely surprised by how warm this tent gets for the price.

Assembly requires zero tools. The metal pipe frame clicks together, the fabric shell drapes over, and you plug in the heating unit. Total setup time was about 3 minutes on my first try. The carry bag makes it easy to transport or store between uses.

The LED therapy light adds a wellness dimension beyond basic heating. The remote control lets you adjust settings without opening the tent, and the double zipper design helps maintain the interior temperature during sessions.

Full Spectrum Heating Performance

The three carbon panels create a 360-degree heating environment that covers your front, back, and sides. In my testing, the sauna reached a comfortable 120 to 130 degrees consistently. However, reaching the advertised 140 degrees required draping an extra blanket over the tent for additional insulation. Without that, expect temperatures in the 120 to 130 range, which is still effective for sweating and relaxation.

The full spectrum designation means the panels emit near, mid, and far infrared wavelengths. Near infrared penetrates the skin surface, mid infrared reaches deeper tissue, and far infrared heats the body core. This combination provides a more complete therapeutic experience than single-wavelength heaters.

Portability and Foldability

This sauna folds down small enough to fit in a closet or under a bed. The metal frame disassembles quickly, and the entire package weighs about 37 pounds. The included carry bag has handles and a shoulder strap for easy transport. If you want a sauna you can take to a vacation home, move between rooms, or store away when guests visit, the ZONEMEL makes that practical.

The included chairs are functional but not comfortable for long sessions. I ended up using my own folding chairs after the first session. The zipper can also be temperamental, requiring some patience to close fully. These are minor complaints given the overall value this sauna provides.

How to Choose the Best 2 Person Infrared Sauna for Your Home

Finding the right 2 person infrared sauna comes down to understanding your space, budget, and what you want out of each session. After testing 10 models and reading through thousands of user reviews, here are the factors that matter most.

Infrared Type: Far Infrared vs Full Spectrum

Far infrared is the most common type in home saunas. It uses longer wavelengths that penetrate deep into your body, producing a sweat at lower air temperatures. Most of the wooden saunas in our roundup use far infrared heating panels, and they deliver consistent, comfortable heat.

Full spectrum saunas add near and mid infrared wavelengths alongside far infrared. Near infrared benefits skin surface and cellular energy. Mid infrared targets deeper tissue for circulation and pain relief. If you want the most complete therapeutic coverage, full spectrum is worth seeking out, though far infrared alone works well for most people.

EMF Levels and Safety

Electromagnetic field exposure is a valid concern when you are sitting inches from heating panels for 30 to 45 minutes. All the wooden saunas in our roundup advertise low EMF ratings. Look for saunas rated at 5mg or below. The Homsido models and Dynamic Saunas both publish their EMF testing results, which gives added confidence.

If EMF is a top concern for you, avoid budget portable saunas that do not publish EMF data. The wooden saunas with carbon or mica panels are generally the safest bet because the wood enclosure provides natural shielding.

Wood Type and Construction

Canadian hemlock is the standard for home infrared saunas, and every wooden model in our roundup uses it. Hemlock is affordable, resists warping, and does not off-gas resins when heated like some softer woods. Cedar smells wonderful but costs more and can trigger allergies in some people.

Construction quality matters more than wood type. Look for tongue and groove joints, dual-wall construction, and tempered glass doors. These details determine how well the sauna retains heat and how long it lasts. The JNH Lifestyles Joyous and Dynamic Saunas models consistently receive praise for their precise engineering.

Electrical Requirements

Most 2-person infrared saunas run on a standard 120-volt, 15-amp household outlet. No electrician needed. However, you should verify that the outlet you plan to use is on a dedicated circuit. Running a 1500-watt sauna on the same circuit as other appliances can trip the breaker.

Portable saunas typically draw less power and are less likely to cause electrical issues. If your home has older wiring, a portable model might be the safer choice until you can have an electrician install a dedicated circuit.

Portable vs Permanent Installation

Portable saunas like the KASUE, iDOTODO, and ZONEMEL cost less, require no permanent space, and can be stored between uses. They are ideal for apartments, renters, or anyone not ready to commit to a permanent installation. The tradeoff is less intense heat, thinner insulation, and a less premium experience.

Permanent wooden saunas like the Dynamic Barcelona or JNH Joyous deliver a superior sauna experience with better heat retention, more powerful heaters, and a comfortable cabin environment. They require dedicated floor space and cannot be easily moved, but the daily experience is far more enjoyable.

Heating Technology: Carbon vs Ceramic vs Mica

Carbon heating panels are the most common. They produce even, gentle heat across a broad surface area. Carbon panels warm up gradually and create a comfortable environment for longer sessions.

Ceramic heating tubes, like those in the KUNSANA, produce more intense, focused heat. They warm up faster and deliver deeper tissue penetration. If you use your sauna primarily for pain relief and muscle recovery, ceramic might be the better choice.

Mica panels, found in the Homsido 8-panel model, sit between carbon and ceramic in terms of heat intensity. They offer a good balance of even distribution and penetrating warmth.

Size and Space Requirements

Measure your available space before buying. Most 2-person wooden saunas need a footprint of roughly 4 by 3.5 feet and stand about 6 feet tall. Add at least 6 inches of clearance on each side for ventilation and access.

Pay attention to interior dimensions versus exterior dimensions. Some saunas advertise as 2-person but have interiors tight enough that two adults will feel squeezed. The DYNAMIC SAUNAS Andora has one of the most generous interiors at 43 by 37 by 68 inches, while the Barcelona is better suited for solo use despite the 2-person label.

Warranty and Brand Reputation

Warranty length tells you how confident a manufacturer is in their product. The Dynamic Saunas and JNH Lifestyles both offer 5-year warranties. Homsido provides 5-year coverage on the heating system and wood structure. Shorter warranties of 1 to 2 years are common on budget models.

Brand reputation matters because you may need support years after purchase. Dynamic Saunas (Golden Designs Inc) and JNH Lifestyles have been in the home sauna market for over a decade with established service networks. Newer brands like Homsido and KUNSANA have earned strong ratings but have shorter track records.

FAQs

Conclusion

After testing all 10 saunas, my top recommendation for most people is the DYNAMIC SAUNAS Barcelona. It delivers the best balance of heating performance, build quality, and long-term reliability backed by 762 reviews and a 5-year warranty. If you want the smartest sauna experience, the Homsido Smart Infrared with app control is a compelling choice. And for budget-conscious buyers who still want a proper wooden sauna, the Homsido 2-Person Far Infrared offers outstanding features for the investment.

For those considering the best 2 person infrared saunas in 2026, the market offers great options at every level. Portable units like the ZONEMEL and KASUE provide an affordable entry point. Mid-range wooden models from Homsido and KUNSANA deliver strong value with modern features. Premium choices from Dynamic Saunas and JNH Lifestyles offer proven durability and the best overall sauna experience. Pick the one that matches your space, budget, and how often you plan to use it, and you will wonder why you did not get one sooner.