Build Your Own High-Performance Air Purifier
Energy Star 2025 Certified Components - Save 60-70% vs Commercial Units
Tested by Intertek - Energy Star 2025 Certified
Complete Air Purifier Kit - Everything You Need
Professional-Grade Components
- High-Performance Fans - 5-7 Sickleflow 120 fans delivering CADR 369-550 m³/hr
- Precision-Cut Panels - Pre-cut MDF panels for perfect assembly
- Complete Hardware - All screws, cable ties, and fan grills included
- Power Supply Included - Energy-efficient and reliable
- Easy Assembly - Build your purifier in under 30 minutes
Why Choose DIY Air Purifiers?
Cost-Effective
Save hundreds compared to commercial air purifiers
High Performance
300-600 CFM CADR comparable to premium units
Easy to Build
Assembly in under 30 minutes with simple tools
Scientifically Proven
Corsi-Rosenthal design validated by experts worldwide
🏙️ London Air Quality Special
Discover how DIY air purifiers can help combat London's air pollution. Learn about real PM2.5 data, respiratory health impacts, and why clean indoor air matters for Londoners.
Explore Air Purification Topics
DIY Air Purifier Kit UK
Create a powerful, cost-effective air purifier at home. Popular across UK homes - save 60-70% vs. commercial brands....
Learn More →Corsi-Rosenthal Box UK
Highly effective DIY design by Richard Corsi and Jim Rosenthal. Widely used across UK and Europe for superior indoor air...
Learn More →CR Box UK (Corsi-Rosenthal Box)
CR Box is the popular name for the Corsi-Rosenthal Box - a scientifically-proven DIY air purifier used throughout UK and...
Learn More →Box Fan Air Purifier
Convert any 20-inch box fan into an effective air purification system....
Learn More →HEPA Filter DIY UK
HEPA filters capture 99.97% of particles down to 0.3 microns. DIY solutions popular across UK provide same performance a...
Learn More →MERV 13 Filter
MERV 13 rated filters provide excellent particle capture for residential air purification....
Learn More →Understanding Technical Terms
What Experts Say
Danny Ashton
HouseFresh (UK)
"The Corsi-Rosenthal Box is not just a budget alternative - it's a genuinely high-performance air purifier that happens to be incredibly affordable. Our testing confirms what scientists have been saying: this DIY design works exceptionally well."
Read More →Alex Kessler
Alex Kessler - Healthy Home Guide (USA)
"As an indoor air quality professional, I'm impressed by how effective these DIY solutions are. The Corsi-Rosenthal Box isn't just cost-effective - it's genuinely high-performing air purification that I recommend to my clients."
Read More →Independent Tester
YouTube Comparison Test
"The results speak for themselves - these DIY air purifiers are not compromising on performance. If anything, they're overperforming relative to their cost."
Read More →Get in Touch
Have questions about our DIY air purifier kits? We're here to help!
Typical response time: 24 hours
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Build your own high-performance air purifier with our Energy Star 2025 certified DIY kits. Save 60-70% vs commercial units with proven Corsi-Rosenthal Box design.
Use code STAROFFER for 10% off