Corsi-Rosenthal Box UK
Highly effective DIY design by Richard Corsi and Jim Rosenthal. Widely used across UK and Europe for superior indoor air quality.
- CADR 300-600 CFM
- Scientifically validated
- Simple construction
- Popular in UK & Europe
- Also known as CR Box
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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.