Testet av Intertek - Energy Star 2025 Sertifisert
Luftrensere Under Forkjølelse- og Influensasesongen: Ditt Forsvar Mot Luftbårne Virus
Forkjølelse- og influensasesongen er her. Oppdag hvordan HEPA-luftrensere kan redusere overføringen av luftbårne virus.
Read Article →
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
What Independent Experts Say
Unbiased reviews from HouseFresh — trusted air purifier testers with lab-grade equipment
Key Findings from Lab Testing
✓
2.4x More Efficient than any commercial competitor
✓
Whisper-Quiet at 39dB
✓
Cheapest Filters (£15/filter replacement)
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Energy Star 2025 Certified
Hvorfor Velge DIY Luftrensere?
Kostnadseffektivt
Spar hundrevis sammenlignet med kommersielle luftrensere
Høy Ytelse
300-600 CFM CADR sammenlignbar med premium enheter
Lett å Bygge
Montering på under 30 minutter med enkle verktøy
Vitenskapelig Bevist
Corsi-Rosenthal design validert av eksperter over hele verden
🏙️ Oslo Luftkvalitet Spesial
Oppdag hvordan DIY-luftrensere kan forbedre Oslos luftkvalitet. Med PM2.5-nivåer på ~6-8 µg/m³ er ren innendørsluft viktig for Osloborgere.
Hva Våre Europeiske Kunder Sier
Ekte erfaringer fra kunder i Storbritannia og Europa
✓ Verifisert Kjøp
"Rask levering til Norge! Enkel montering. Astmaen min er merkbart bedre. Luften føles renere. Anbefales!"
Utforsk Luftrensing Emner
Luftrenser DIY Best i Test 2025 - Astma Allergiforbundet Norge
Lag en kraftig luftrenser hjemme - Astma Allergiforbundet kvalitet til riktig pris. Populær i Norge (Oslo, Bergen, Trond...
Lær Mer →Corsi-Rosenthal Box Kit Norge - Premium Kit fra 1800 kr | Fri Frakt
Leter du etter en Corsi-Rosenthal Box? Clean Air Kits tilbyr premium CR Box varianter - profesjonelle kit inspirert av d...
Lær Mer →CR Box Kit Norge - Premium Kit fra 1800 kr | Fri Frakt
Leter du etter en CR Box? Clean Air Kits tilbyr premium CR Box varianter - profesjonelt designede kit med overlegen ytel...
Lær Mer →Box Fan Air Purifier
Convert any 20-inch box fan into an effective air purification system....
Lær Mer →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...
Lær Mer →MERV 13 Filter
MERV 13 rated filters provide excellent particle capture for residential air purification....
Lær Mer →Forstå Tekniske Termer
CADR (Clean Air Delivery Rate - Ren Luft Leveringshastighet)
CADR (Clean Air Delivery Rate) er bransjestandarden for å måle luftrenseres effektivitet. Den angir volumet av ren luft ...
Lær Mer →CFM (Kubikkfot per Minutt)
CFM (Cubic Feet per Minute) måler volumet av luft som strømmer gjennom en luftrenser eller ventilasjonssystem. Det er en...
Lær Mer →MERV-Vurdering (Minimum Efficiency Reporting Value)
MERV (Minimum Efficiency Reporting Value) er et vurderingssystem fra 1-20 som måler luftfiltereffektivitet. Høyere MERV-...
Lær Mer →Hva Eksperter Sier
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."
Les Mer →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."
Les Mer →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."
Les Mer →Latest Air Quality Insights
Expert guides and seasonal tips for cleaner indoor air
Preparing Your Home for Allergy Season
Don't wait for symptoms to start. Prepare your home now for a comfortable allergy season.
Read Article →Complete Filter Maintenance and Replacement Guide
Maximize your air purifier's performance and lifespan with proper filter maintenance and replacement timing.
Read Article →Ta Kontakt
Har du spørsmål om våre DIY luftrenser-sett? Vi er her for å hjelpe!
Typisk svartid: 24 timer
Frequently Asked Questions
What is a CR Box or Corsi-Rosenthal Box?
A CR Box (Corsi-Rosenthal Box) is a DIY air purifier design invented by professors Richard Corsi and Jim Rosenthal. Clean Air Kits offers premium CR Box variant kits with pre-cut panels and professional components that deliver superior performance - removing 99.95% of airborne particles including dust, pollen, and viruses.
How much do Clean Air Kits CR Box kits cost?
Our premium CR Box variant kits start at £144 for fanless kits (you supply your own fans) and £204 for complete kits with high-quality fans included. This is significantly cheaper than commercial air purifiers like Dyson (£300+) while providing superior HEPA H13 filtration.
What's included in your CR Box kits?
Our kits include pre-cut MDF panels, all mounting hardware, cable ties, and detailed instructions. Complete kits (£204+) also include 5-7 high-performance Sickleflow 120 fans and power supply. Everything you need - just add your choice of HEPA filters.
Why choose Clean Air Kits over building my own CR Box?
Our premium kits use precision-cut panels and professional components for superior build quality and performance. No cutting, measuring, or sourcing parts - just simple assembly in about 30 minutes. Our kits outperform traditional DIY builds with better airflow and filtration efficiency.
Do you offer free shipping to the UK?
Yes, we offer free shipping across the UK with delivery in 2-3 business days. We also ship to all EU countries including Germany, France, Netherlands, Sweden, and more with competitive shipping rates.
How often do I need to replace the filters?
HEPA filters typically last 6-12 months depending on usage and air quality. We recommend checking filters monthly and replacing when visibly dirty. Compatible replacement filters are widely available.
Kom I Gang
Bygg din egen høyytende luftrenser med våre Energy Star 2025 sertifiserte DIY-sett. Spar 60-70% vs kommersielle enheter med bevist Corsi-Rosenthal Box design.