CADR Value Air Purifier - Clean Air Delivery Rate Explained
Understanding CADR — Clean Air Delivery Rate — is the single most important metric when choosing an air purifier. CADR measures the volume of filtered air delivered per hour (m³/h) across three pollutants: pollen, smoke, and dust. Our Corsi-Rosenthal DIY Kit achieves independently tested CADR values of 300–500 m³/h, outperforming the Dyson Pure Cool (190 m³/h) and Philips AC1715 (190 m³/h) at a fraction of the price. Use our CADR calculator to find the right airflow for your room size.
At Clean Air Kits, we've developed premium DIY air purifier kits based on the proven Corsi-Rosenthal Box design. Our kits are Energy Star 2026 certified and independently tested to be 2.4x more efficient than commercial alternatives like Dyson.
Why Clean Air Kits Are the Best Choice
True H13 HEPA Filtration
Unlike competitors using MERV filters, our kits use genuine H13 HEPA filters that capture 99.95% of particles. Learn about EN 1822 standards →
Proven Performance
Independent lab tests by HouseFresh confirm CADR ratings of 369-550 m³/hr at only 39dB. Read expert reviews →
EU Compliant
Meets all EU safety and quality standards including CE marking. EU Air Quality Directive compliance →
- CADR 300–500 m³/h independently verified
- Outperforms Dyson Pure Cool & Philips AC1715
- CADR calculator for any room size
- Pollen, smoke & dust CADR all rated
- ACH 4–6x per hour in standard rooms
How Our DIY Air Purifier Works
Unbox Your Kit
All components pre-cut and ready. Just add your choice of HEPA filters.
30-Minute Assembly
Simple instructions. No tools required. Perfect for schools and offices.
Enjoy Clean Air
Filters 99.95% of particles including viruses, pollen, and dust.
Air Quality Across Europe
Air pollution affects millions across the EU. Our purifiers are helping families breathe cleaner air in major cities.
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