Relax Black Pro Far Infrared Sauna

A Tent, Not a Cabin: What "Portable Far Infrared" Actually Looks Like Here

The Black Pro is a fabric enclosure, not a wood cabin — you sit inside a reflective, pole-supported tent with your head left outside the top, a genuinely different format than the wood cabins sold by most brands on SaunaPlungeHub. It's also a step up in form factor from a sauna blanket, which zips around your whole body including your head — the head-out design here is a real, checkable point of comparison for buyers deciding between portable formats, and it's also the specific feature several real customer reviews on this exact product call out as a deliberate skin-care choice.

Black Pro vs. Silver Elite: The Same Heat, a Tougher Shell

Relax states directly that the Black Pro and its lower-tier Silver Elite model share the identical patented dual FIR conductor heating system — same infrared output, same core technology. The difference is the shell: Black Pro uses a thicker, reinforced, silver-lined tent material built for repeated daily use (Relax cites 15–20 sessions per day as the target use case), delivering faster warm-up and shorter effective session times for the same or stronger effect. That positions this specific model toward buyers who plan to use it constantly or run it in a clinic/practitioner setting, not casual, occasional home use.

Real Numbers: Wavelength, Wattage, and a Standard Outlet

The heater operates in the 7,000–14,000 nanometer far infrared range (7 to 14 microns) at 1,400 watts, running on AC 120V or 220V depending on your region. At 120V, 1,400 watts draws roughly 11.7 amps — comfortably under a standard 15-amp household circuit, so unlike a cabin sauna, this doesn't require a dedicated circuit or an electrician. Just be mindful about what else is sharing that outlet if you're running it alongside other appliances. The unit measures 32" x 33" x 46" set up and weighs 33 lbs, with a carry bag included.

The Claims on the Box: Reading "Detoxifies Heavy Metals" and "Activates the Parasympathetic Nervous System" Skeptically

Relax's own product highlights make some fairly specific physiological claims — reducing chronic pain and inflammation, detoxifying heavy metals, microplastics, and dioxins, activating the parasympathetic nervous system, and stimulating mitochondria to create nitric oxide. These are brand-authored marketing statements, not findings from an independent clinical trial of this specific product, and some (the heavy-metal and mitochondrial claims especially) are considerably more specific than the general relaxation and circulation claims most infrared sauna brands make. Treat these the same way you'd treat any manufacturer's health claim in this category: read them as marketing language rather than verified medical outcomes, and talk to a healthcare provider before using any wellness product as part of managing a specific health condition.

What's Actually in the Box, and a Logo Heads-Up

The kit includes two foot pads, the reflective sauna tent, the far infrared radiator set, two sets of supportive poles, a folding chair, the controller and controller holder, and a carry bag, backed by a 1-year warranty. One small but worth-knowing detail directly from Relax: current inventory still ships with the brand's legacy logo on the tent ahead of an upcoming rebrand — same technology and build, just don't be surprised if your unit's branding doesn't match newer marketing photos.

Who This Size Actually Makes Sense For

Given the price gap between this and a basic sauna blanket, and the "built for 15–20 sessions a day" framing, the Black Pro reads as the right call for frequent daily users, practitioners, or small studios — not necessarily the first sauna purchase for someone testing infrared therapy for the first time, where the lower-cost Silver Elite or a blanket format may make more sense. For pairing this into a full routine, see our Contrast Protocol Builder, and browse the underlying research behind far infrared claims generally on our Science Index before assuming brand-specific claims apply directly to this unit.

How to Use

1. 1
   Step 1 of 8

   Unpack and Set Up the Frame

   Assemble the supportive poles and attach the reflective tent per the included instructions.
2. 2
   Step 2 of 8

   Position the Folding Chair Inside

   Set up the included folding chair inside the tent for seated use.
3. 3
   Step 3 of 8

   Plug Into a Standard Outlet

   Connect to a standard 120V (or 220V, depending on your region) household outlet — no special circuit required given the unit's roughly 11.7A draw.
4. 4
   Step 4 of 8

   Power On and Set Your Session

   Use the controller to start your session, keeping your head outside the tent opening throughout.
5. 5
   Step 5 of 8

   Monitor Session Length

   Given the Black Pro's faster heat-up and higher intensity compared to the Silver Elite, expect shorter session times to reach the same effect — follow the owner's manual's recommended durations rather than defaulting to longer sessions out of habit.
6. 6
   Step 6 of 8

   Power Down and Ventilate

   Turn off and open the tent fully afterward to let it air out and cool before folding it away.
7. 7
   Step 7 of 8

   Store or Pack for Travel

   Fold the tent and poles into the included carry bag if storing between uses or traveling with it.
8. 8
   Step 8 of 8

   Clean Regularly

   Wipe down the interior and foot pads regularly, particularly given the manufacturer's stated use case of multiple daily sessions in professional settings.

Went in with realistic expectations after reading a lot of infrared sauna marketing that oversells itself, and this one actually matched what was described. Assembly was straightforward following the included instructions, the folding chair that comes with it is a nice touch so you're not sitting on the floor, and the controller is simple enough that my partner figured it out without reading the manual. It packs back down into the carry bag reasonably compactly for storage between uses, which was a deciding factor for us since we don't have room to leave it set up permanently.

We'd had a Relax sauna for years before this one and finally decided it was time to upgrade to the Black Pro specifically because we use it almost daily. The thicker, silver-lined tent noticeably holds heat better than our older unit — it warms up quicker and I get a proper sweat going faster than I remember with the previous version. Given how often we run it, the more reinforced build feels like the right call rather than something we'll wear out in a year. It's not a huge unit, so it doesn't dominate the room the way a full cabin sauna would, which mattered to us since we don't have a dedicated space for one.

Setup took maybe ten minutes the first time and closer to five once I knew what I was doing — the poles snap together easily and the tent just drapes over the frame. What sold me on this over a full-enclosure sauna blanket was keeping my head outside the tent; I'd read that heat and humidity around the face can be rough on skin over time, and being able to sit comfortably without my face inside the heated zone made a real difference for me. It plugs into a normal wall outlet in my bedroom with no special wiring, and it genuinely gets warm fast — I'm usually sweating within the first several minutes rather than waiting around. Cleanup afterward is simple too, just wiping down the interior and foot pads before folding it back into the carry bag.