DIY Air Purifier Guides
Build your own quiet, powerful air purifier. Our guides include complete bills of materials, step-by-step instructions, and safety considerations.
Build Comparison
| Build | Fans | CADR | Noise | Power | Filter | ACH (20m³) | |
|---|---|---|---|---|---|---|---|
| Brisk Box (4-fan) | 4x CoolerMaster SickleFlow | 340 m³/h (200 cfm) | 40 dB | 7W | Filtrete MPR1900 16x25 | 10 ACH | |
| Luggables XL | 7x CoolerMaster SickleFlow | 525 m³/h (310 cfm) | 37 dB | 11W | Filtrete MPR1900 20x25 | 16 ACH | |
| Tower of Power | 6x SickleFlow + 4x Mobius 2400rpm | 680 m³/h (400 cfm) | 38 dB | 18W | Filtrete MPR1900 20x30 | 20 ACH |
For prices and orders, visit CleanAirKits Shop
Featured Build: Luggables XL
Technical Specifications
CADR Performance
525 m³/h (310 cfm)
Noise Level
37 dB (whisper quiet)
Power Consumption
11W (LED bulb equivalent)
Coverage
465 sq ft / 8 people
Components Included
- • 7x CoolerMaster SickleFlow 120mm Pressure Fans
- • Precision-cut hardboard panels (20x26x7")
- • 2x Filtrete MPR1900 filters (20x25)
- • UL-listed 12V 2A DC wall adapter
- • Built-in suitcase handle for portability
- • Weighs only 8 lbs
Assembly Options
- Pre-Assembled: Arrives ready to use, UL507 & FCC certified
- DIY Kit: 30-minute assembly, save ~£40, same quality
- Optional Mesh Guard: Protects filters, adds structural strength
Why SickleFlow Fans?
- • UL-registered components for safety certification
- • Designed for quiet, high-pressure airflow through HEPA filters
- • 18-year MTTF (mean time to failure) for long-term reliability
- • Energy-efficient 12V DC operation
- • Balanced white noise profile (no annoying frequencies)
Performance Data
20m³ Room
16 ACH (excellent)
40m³ Room
8 ACH (very good)
Energy Cost
~£12/year 24/7
What Independent Experts Say
Unbiased reviews from HouseFresh — trusted air purifier testers
The World's Most EFFICIENT Air Purifier?
Reviewed by Danny Ashton, HouseFresh 2026
The QUIETEST Air Purifier I've Tested
Reviewed by Danny Ashton, HouseFresh 2026
Key Findings
- 2.4x More Efficient than any commercial competitor
- Whisper-Quiet at 39dB
- Cheapest Filter Replacements (£15/filter)
- Energy Star 2026 Certified
Ready to Build?
Get all the components you need from CleanAirKits. Pre-assembled kits and individual parts available.
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