Europas Bedste DIY Luftrenser - UK & 19 EU-lande

Energy Star 2026 Certificeret - Levering til Storbritannien, Tyskland, Frankrig, Holland, Sverige, Norge, Danmark, Polen, Spanien, Italien, Portugal, Rumænien, Finland, Estland, Ukraine, Tjekkiet, Ungarn, Litauen, Letland & Slovenien

🇩🇪 "Euer Gerät ist das Einzige, was man sinnvoll mit in den Raum stellen kann, ohne dass es jemanden stört."
🇬🇧 "Your device is the only one that can be placed in the room without disturbing anyone."

— Sebastian, Germany ✓ Verificeret kunde

Energy Star 2026 Testet af Intertek - Energy Star 2026 Certificeret

Complete Air Purifier Kit - Everything You Need

DIY Air Purifier Kit Components - CADR 369-550 m³/hr with 5-7 Sickleflow 120 fans, pre-cut MDF panels, power supply, cable ties, screws, and fan grills

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
Get Your Kit Now →

What Independent Experts Say

Unbiased reviews from HouseFresh — trusted air purifier testers with lab-grade equipment

"The World's Most EFFICIENT Air Purifier?"

HouseFresh — Danny Ashton (UK) 2025

"The QUIETEST Air Purifier I've Tested"

HouseFresh — Danny Ashton (UK) 2025

Key Findings from Lab Testing

2.4x More Efficient than any commercial competitor
Whisper-Quiet at 39dB
Cheapest Filters (£15/filter replacement)
Energy Star 2026 Certified
Shop the Luggable XL Ultra →

Hvorfor Vælge DIY Luftrensere?

Omkostningseffektivt

Spar hundreder sammenlignet med kommercielle luftrensere

Høj Ydeevne

300-600 CFM CADR sammenlignelig med premium enheder

Let at Bygge

Montering på under 30 minutter med simple værktøjer

Videnskabeligt Bevist

Corsi-Rosenthal design valideret af eksperter verden over

🏙️ København Luftkvalitet Special

Opdag hvordan DIY-luftrensere kan forbedre Københavns luftkvalitet. Med PM2.5-niveauer på ~6-9 µg/m³ er ren indendørsluft vigtig for københavnere.

Hvad Vores Europæiske Kunder Siger

Ægte oplevelser fra kunder i UK og Europa

✓ Verificeret Køb
"Hurtig levering til Danmark på kun 3 dage! Nem at samle. Min astma er meget bedre nu. Sover bedre om natten. Anbefaler stærkt!"
Lars Hansen Copenhagen, Denmark
✓ Verificeret Køb
"Fantastisk hurtig levering! Bygget på 30 minutter. Mit barn med astma har det meget bedre nu. Luften er renere. Perfekt!"
Anders Jensen Aarhus, Denmark

Forstå Tekniske Termer

CFM (Cubic Feet per Minute)

CFM (Cubic Feet per Minute) measures the volume of air that flows through an air purifier or ventilation system. It's a ...

Lær Mere →

MERV Rating (Minimum Efficiency Reporting Value)

MERV (Minimum Efficiency Reporting Value) is a rating system from 1-20 that measures air filter efficiency. Higher MERV ...

Lær Mere →

CADR (Clean Air Delivery Rate)

CADR (Clean Air Delivery Rate) is the industry-standard metric for measuring air purifier effectiveness. It indicates th...

Lær Mere →

Hvad Eksperter Siger

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."

Læs Mere →

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."

Læs Mere →

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."

Læs Mere →

Latest Air Quality Insights

Expert guides and seasonal tips for cleaner indoor air

Kom I Kontakt

Har du spørgsmål om vores DIY luftrenser-sæt? Vi er her for at hjælpe!

Vi respekterer dit privatliv. Dine oplysninger bruges kun til at svare på din forespørgsel.

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

Byg din egen højtydende luftrenser med vores Energy Star 2026 certificerede DIY-sæt. Spar 60-70% vs kommercielle enheder med bevist Corsi-Rosenthal Box design.