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The Nukit Tempest Pro - Complete, Ultra-Quiet Air Purifier Kit (International)
The Nukit Tempest Pro - Complete, Ultra-Quiet Air Purifier Kit (International)
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Features
- All-metal, buy-it-for-life construction.
- Quietly and efficiently removes dust, smoke, allergens, bacteria, mold, and viruses from the air.
- Uses two standard, low-cost, non-proprietary 20x25x1 MERV 13 furnace filters, available through Digikey or Temu, almost anywhere in the world.
- Low profile- made to look just like a tower PC.
- No app, no cloud, no "smart" anything. Everything can be repaired or replaced for life with just a screwdriver.
- Uses standard, easily replaceable PC hardware: screws, cables, 140 mm fans, grills, etc.
- Color-match any decor: paint, strip, prime, and repaint as many times as you like. Most auto body shops will do it inexpensively.
- Great family STEM project for all ages: just like assembling a PC case, but with no sharp edges.
- 12 V DC input, ultra-low power consumption (14.5 W)- perfect for off-grid and solar applications.
Performance
Independently lab-measured CADR: 222 CFM at 37 dBA* (PDF). One of the best CADR-to-noise ratios of any air purifier available.
When comparing with other purifiers' maximum CADR, check what they deliver below 40 dBA, not at a noise level you'll never actually use. If you want higher CADR (at higher noise and cost, though still quieter and cheaper than most commercial purifiers), swap in Arctic P14 PWM fans for 248 to 299 CFM.
*Specs and CADR depend on configuration; this was measured with the parts list below.
In the box
- Our own custom-made, high-pressure, ultra-quiet 140 mm fans
- Fan and filter grills
- 12 V power supply with a five-meter cable
- PWM speed controller
- Wiring harness and cable-management parts
- Wall/ceiling mount bracket with screws and anchors (VESA mounting holes)
The included dual-voltage power supply is NEMA 1-15P (US two pole), so you may need a plug adapter for your outlet.
You'll need (not included)
- 2 × 3M Filtrete 20"×25"×1" MPR 1900 (MERV 13) filters, or any standard 20x25x1 MERV 13 furnace filter
Mounting
Wall/Ceiling Mount
High-CADR, low-noise air purifiers like the Tempest Pro require a large filter surface area and so have a relatively large enclosure. Floor space is often at a premium, or you may just want to keep the Tempest Pro out of reach. The included metal bracket, screws, and anchors make wall and ceiling mounting a breeze, and filters can still be swapped easily without removing the unit from its mounting point.
The Tempest Pro wall/ceiling mount installs easily, exactly like a TV wall mount:
Worried that placement will reduce effectiveness? Our computational fluid dynamics (CFD) modeling shows room placement makes only a negligible difference:
VESA Mount
The Tempest Pro's wall/ceiling bracket has VESA mounting holes, so it attaches to a wide variety of fixtures and mounts.
Up to eight units can be placed back to back on a single Autopole with appropriate hardware (option 1, option 2).
This, combined with the Tempest Pro's high CADR, robust construction, and convenient carrying handle, makes it ideal for use at events and on location.
Specifications
| CADR | 222 CFM at 37 dBA, independently lab-measured (PDF)* |
| Power | 12 V DC input, 14.5 W (dual-voltage power supply with a NEMA 1-15P US plug) |
| Filters | 2 × 20x25x1 MERV 13 (not included) |
| Assembled size | 677 × 515 × 192 mm (26.7 × 20.3 × 7.6 in); 256 mm (10.1 in) deep with the wall mount |
| Shipping size | 720 × 300 × 280 mm (28.3 × 11.8 × 11.0 in) |
| Shipping weight | 8.5 kg (18.7 lb) |
| Mounting | Wall/ceiling bracket included, with VESA mounting holes |
Guides & FAQ
- Nukit Tempest Pro Assembly Step-by-Step Guide (read this first)
- Nukit Tempest Pro Assembly Instructions (printable PDF)
- Nukit Tempest Pro FAQ
Accessories
- The Nukit Tempest Power Loss Alarm. Discourages users from unplugging and disabling your air purifier.
- Nukit CO2 Controller. Turns the Nukit Tempest on and off in response to ventilation/CO2 levels.
Huge thanks to Zack Deis for contributing his design, which we have continued to iterate on.
Air changes & infection-risk drop for your room
CADR 222 CFM · lab measuredEnter your room size to see how many times per hour the Tempest Pro filters all the air in it (ACH), and the estimated drop in airborne infection risk.
Enter your room size
We'll show how well the Tempest Pro covers this space.
ACH = clean air delivered per hour ÷ room volume, based on the independently lab-measured 222 CFM CADR @ 37 dBA. The U.S. CDC recommends targeting at least 5 air changes per hour in occupied indoor spaces,1 while Harvard's Healthy Buildings program advises 4–6 ACH for classrooms and shared rooms.2 The infection-risk figure is a relative estimate for long-range, well-mixed airborne transmission only (Wells–Riley / Rudnick & Milton3); it is not an absolute chance of infection and ignores close-range exposure. Real-world results vary with ceiling height, layout, and door/window sealing.
- CDC / NIOSH, “Ventilation in Buildings: Aim for 5 air changes per hour.”
- Harvard T.H. Chan School of Public Health, Healthy Buildings Program — schools ventilation guidance (4–6 ACH).
- Rudnick, S.N. & Milton, D.K. (2003), Risk of indoor airborne infection transmission estimated from carbon dioxide concentration, Indoor Air.
We love our white Tempest! It is so quiet, even on full blast - and sits unobtrusively (attractively, even!) against the wall. I was a bit daunted by the thought of assembling it as I am not someone who has ever built any tech - but it was straightforward, and actually fun! The build feels reassuringly solid, and I know it is going to go on providing us with clean air for decades to come! I love Nukit's transparency and quality info on all of their products, and also the second-to-none consumer service.
I am very impressed with the Tempest Pro. I was a little intimidated by the building process at first but it was pretty straightforward once I got started.
I can't believe just how quiet it is. I regularly have to check that it is still turned on/up because I can't hear it! It can run on full speed without the noise interfering with everyday life.
I would highly recommend it and hope to get another in future.
A well designed, well made, and complete filter kit. Very quiet and with great performance. The unit comes very well packaged for safe shipment. I've been looking for a great filer kit for some time and this is it. Everything you need is supplied except the filters. Assembly was easy and enjoyable too. Just be sure to read over all available information carefully and take your time, as there are a few options regarding speed control placement (I used the internal mounting with external knob option). Highly recommended!
Well designed
Quality materials supplied
Prior to purchasing i looked at making something myself.
Don't bother cant make something as good as this for the money
Really nice build quality & super easy to assemble. I love these!
It's fantastic, buy it for life. Be careful when attaching the fans, I had to reorient them twice to get the daisy chaining to work but that is user error, the instructions are clear. I used magnets to mount it on top of my home server rack and I bought a USB-C to 5.5 x 2.5mm 12 volt cable so I can power it from any USB-C PD source. The edges of the mesh prefilter were getting caught when inserting the prefilter and attaching the top cover so I covered the edges with washi tape and now they behave properly and don't get caught.
Thank you and bravo to Naomi and team.
After I set it up, it was so quiet my wife asked if I had turned it on (while on 60% fan speed).
Let customers speak for us
We love our white Tempest! It is so quiet, even on full blast - and sits unobtrusively (attractively, even!) against the wall. I was a bit daunted by the thought of assembling it as I am not someone who has ever built any tech - but it was straightforward, and actually fun! The build feels reassuringly solid, and I know it is going to go on providing us with clean air for decades to come! I love Nukit's transparency and quality info on all of their products, and also the second-to-none consumer service.
Well designed
Quality materials supplied
Prior to purchasing i looked at making something myself.
Don't bother cant make something as good as this for the money
I've purchased both the Nukit Torches and Lanterns and can say without a doubt that you won't find better value for your money for reliable Far-UVC anywhere else. I've always received excellent customer service in the few instances I encountered an issue with my purchase, and I won't hesitate to support and make purchases again from Nukit in the future (and I definitely plan to!). Thank you!
My second lantern on top of Torch 1.0.
Really nice build quality & super easy to assemble. I love these!
Whisper quiet, super fun to put together. 100% recommend.
It's fantastic, buy it for life. Be careful when attaching the fans, I had to reorient them twice to get the daisy chaining to work but that is user error, the instructions are clear. I used magnets to mount it on top of my home server rack and I bought a USB-C to 5.5 x 2.5mm 12 volt cable so I can power it from any USB-C PD source. The edges of the mesh prefilter were getting caught when inserting the prefilter and attaching the top cover so I covered the edges with washi tape and now they behave properly and don't get caught.
Thank you and bravo to Naomi and team.
Excellent purifier, easy to built even with zero building skills.
As a person living in France, having the opportunity to buy cheap filters at IKEA is a huge advantage.
I currently own 4 Nukits because I liked my first one so much I immediately decided we needed one in every room. There so much quieter and less obtrusive than commercial air purifiers which tend to be weirdly rounded, heavy, and take up lots of space compared to their size. With their practical shape, the Nukits tuck away neatly into corners, as long as you position them so the sides have some room of course. They’re also not an eye sore, which I do value.
They’re fairly quiet, and I don’t usually run them on full speed. They run permanently, though, and they’re never heard on calls during meetings nor do they bother us at night. And with the speed controllers, it’s easy to vary speed as necessary. Most importantly, they work. I have MCAS and have been struggling with mold spores as we live in a humid but warm region. Since getting these, I’ve been feeling much better. And the ability to turn them up when I work out in my room has helped a bunch too.
If I could change one thing, I would ask for a list of components to be included in the package, so you can check right away if you have everything. It would also be helpful if you’re not experienced with building PCs—I had no idea what everything was called and what it would look like. So I struggled a bit building my first Nukit and it took me a while to figure out that the four-way converter cable hadn’t made it into my package. When I reached out to Nukit they helped me figure out the problem, apologised, and offered to refund me if I purchased a converter myself. I appreciated the helpfulness. However, I think I could have figured it out much faster if there had been a list of components/items.
With 4 Nukits, I like to joke that we’re 1 more short of the Nukits On The Block ;)
I don't know how to evaluate the effectiveness of the light (I trust them), but the occupancy sensor is so good I wondered if it was broken. Always triggered faster than I could move to see it turn on. Family was making fun of me because I got out a mirror to make sure it was turning off after everyone left.
After I set it up, it was so quiet my wife asked if I had turned it on (while on 60% fan speed).
I loved the ease of assembly and the clear instructions. It's clear that the folks at Nukit spent a good deal trying to make this as easy and as accessible as possible. Great job!
I am very impressed with the Tempest Pro. I was a little intimidated by the building process at first but it was pretty straightforward once I got started.
I can't believe just how quiet it is. I regularly have to check that it is still turned on/up because I can't hear it! It can run on full speed without the noise interfering with everyday life.
I would highly recommend it and hope to get another in future.
I really like it, i would never convince myself to create it so buying it was way to go and i don't regret it.
you buy two ikea filters and 4 cheap fans, add esp, wire it and ready to go in your home assistant. on 20% unaudible.
A well designed, well made, and complete filter kit. Very quiet and with great performance. The unit comes very well packaged for safe shipment. I've been looking for a great filer kit for some time and this is it. Everything you need is supplied except the filters. Assembly was easy and enjoyable too. Just be sure to read over all available information carefully and take your time, as there are a few options regarding speed control placement (I used the internal mounting with external knob option). Highly recommended!
