Large PC fan CR Boxes can save a couple hundred dollars per year in electricity and filter replacement cost compared to equivalent large HEPAs
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441 sq ft 7+ people
Luggable Ultra Air Purifier (5-Fan)
Luggable Ultra Air Purifier (5-Fan)
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Luggable Ultra Air Purifier (5-Fan)
Assembly & Support Videos
Luggable Ultra Air Purifier (5-Fan) - Assembly
Step-by-step assembly guide for the Luggable Portable Air Purifier - 5 Fan
Assembly • 5-Fan • 8:23
The Luggable Ultra Air Purifier (5-Fan) is a lightweight, portable air purifier designed to deliver powerful clean air for small to medium-sized spaces. Its slim profile fits easily into bedrooms, home offices, living rooms, dining rooms, classrooms, apartments, and other shared indoor spaces, while remaining easy to carry and reposition wherever clean air is needed.
Weighing just 6 pounds, the Luggable Ultra includes an integrated side handle, making it easy to move from room to room or take it with you to visit the dentist or doctor.
High-Performance Filtration
The Luggable Ultra features five Cooler Master Mobius 120P Black Edition fans, an exclusive from Cooler Master for this purifier. These industry-leading fans deliver exceptional airflow while maintaining low noise levels and outstanding durability. The Mobius loop dynamic bearing is rated for approximately 210,000 hours (22 years MTTF), providing years of reliable performance.
Industry-Leading Energy Efficiency
Intertek tested our Ultra to achieve an unprecedented 16 Smoke CADR per Watt, more than the energy efficiency of any HEPA purifiers in the EnergyStar database!
Assembly Options
Choose the option that works best for you:
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Assembled – Ready to use out of the box.
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Unassembled Kit – You provide the two filters; we provide the rest. Assemble in approximately 20–30 minutes using the same process as our factory. (Factory inspection is required for the UL 507 certification label on assembled units, so confirm your school or organization is okay with forgoing this before going with the unassembled option.)
A step-by-step video assembly guide and printable instructions are available to help make assembly simple.
Optional Accessories
Hex mesh filter guards are available separately to help protect the fans from curious hands and pets. They are recommended for high-traffic environments such as classrooms, restaurants, or anywhere the purifier will be moved frequently and also help maintain sturdiness.
Like it even quieter? For adjustable airflow, a compatible 3–12V DC, 3A variable power supply like this is available separately. Otherwise, you get one continuously-running purifier that is always on with one simple, high filtration setting.
Save on Shipping
Choosing the Unassembled STEM Kit (without filters) can save approximately $50 when purchasing compatible 3M Filtrete MPR 1900 or MPR 2200 16 × 25 filters separately.
(Why is it $50 cheaper? Assembled purifiers cost approx. $50 more to ship, and we pass those savings along to you when you order a kit that can be shipped flat.)
Materials
Luggable hardboard panels do not contain lead, formaldehyde, or PFAS.
⚠️ California Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov .
Safety Note: Do not laser cut this product or it's components.
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ModelUltra (5-Fan)
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Filters2 Filtrete 16x25" MPR1900+
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Dust/Virus CADR294 cfm (500 m3/hr)
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Pollen CADR324 cfm
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Smoke CADR231 cfm
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Room Occupants (40cfm per)7.5
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5 ACH Coverage441 sq ft
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Power10.7 W
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Sound Pressure37.5 dBA
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Dimensions16x25x7"
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Weight6 lbs
- Integrated handle for portability
- Can place in a corner or against the wall
- Lightweight: 6 lbs
- Simple, non-proprietary filter replacements
Unintuitively Quiet
It's dead simple. CleanAirKits deliver top-end portable HEPA performance and they're QUIET. At that performance level, HEPA are not quiet -- people turn them down or turn them off. And we need them to be on and high-performing to passively remove covid and pollutants.The exceptionally large, unencumbered filtration area provided by dual micro pleated 3M Filtretes, and our diffuse banks of silent pressure fans make this possible. Delivering 200-500 cubic feet per minute of clean air means the boxes filter 1000-2000 faster than an adult human breathes!
Always On Safety
Since a Clean Air Kit is not loud and power hungry like a HEPA, it can always be running. And if it's always running, it's always adding a layer of protection for you and your family from smoke & airborne transmission of viruses like Flu, RSV, and Covid.
This corresponds to the pandemic HVAC best practice of continuously running furnace fan circulation with MERV13 or MERV14 filtration.
March 2022: Study of 10,441 Italian Classrooms with
varying mechanical ventilation up to 6 ACH.
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Quiet on FullClean Air Kits produce 5-10x less noise than HEPA purifiers at max capacity.
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One Speed DesignSpeed controls defeat the efficacy of most HEPAs -- people turn them down to quiet where air cleaning slows. We have just one speed: silent full blast!
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Unprecedented Energy EfficiencyDecades of competition has driven amazing silence + efficiency in PC fans. Our fan banks use 6-16W -- comparable to a LED bulb and easy to run off batteries!
Products are returnable within 30 days for a full refund less $44 filter hygiene cost and shipping. Exchanges to other models with same filter sizes are free except for shipping, otherwise $44 for new filters.
All products ship from Missouri via UPS according to an average rate per product (until backend supports live rates accurately). Due to high demand and customizations products may take up to two weeks to ship.
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"Standalone HEPAs or Corsi-Rosenthal boxes are a quick way to lower the risk of inhaling SARS-CoV-2 virus. Filtering the virus out of the air reduces the chance of inhaling it---simple logic. The other option is to filter/trap it with a mask before it is released or inhaled."
Kim Prather, PhD
Distinguished Professor, UCSD
Director NSF Center for Aerosol Impacts
on Chemistry of the Environment -
3M tested the Corsi-Rosenthal Box with the same rigor it applies to its Filtrete brand of products and found the C-R Box “performs exceptionally well in its ability to capture unwanted airborne particles, including viruses," says Kelsey Hei, a 3M application engineer.
Fortune: A DIY air purifier that costs
under $100 to make is taking Americas
classrooms by storm -
“A C-R box uses MERV-13 filters, which can only remove 60% to 80% of those particles, (but) the fan on the C-R box is much bigger and can clean more air,” says Joseph Fox, chair of the indoor air quality advisory group with the Ontario Society of Professional Engineers, who works with schools on HVAC issues. “All you care about in the end is the total rate at which the air is cleaned. So, what the C-R box lacks in efficiency, it makes up for in airflow.”
Fortune: A DIY air purifier that costs
under $100 to make is taking Americas
classrooms by storm -
Many exciting innovations have emerged in the last two years alone. Once it is clearly acknowledged the virus is airborne, it becomes a very fixable problem. People will shift from cleaning surfaces to cleaning indoor air where we spend 90% of our time. This has huge positive health ramifications beyond COVID-19 by reducing the spread of all airborne pathogens, pollutants including wildfire smoke, and other asthma-inducing aerosols.
Kim Prather, PhD
Distinguished Professor, UCSD
Director NSF Center for Aerosol Impacts
on Chemistry of the Environment -
To lower inhalation dose of virus-laden respiratory aerosol particles (a major key to suppressing the mortaility and mobidity associated with COVID-19) the three Rs must be advanced from where they are now. Remove, Reduce, Remediate.
Richard Corsi, PhD PE (Texas)
Dean of Engineering, UC Davis -
Appropriate combos of Remove, Reduce, & Remediate are what many of us called layered risk reduction (or layered inhalation dose reduction) back in Spring 2020. Not rocket science. For those who still care about reducing the spread of COVID-19, it all still applies, folks.
Richard Corsi, PhD PE (Texas)
Dean of Engineering, UC Davis -
"I am thrilled to be part of something that is so accessible to people around the world, helping to protect children in school and families in their homes, all the while inspiring children about the power of STEM."
Richard Corsi, PhD PE (Texas)
Dean of Engineering, UC Davis
