PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter

Last updated: January 2026 | Reading time: 5 min | Verified by experts

PM2.5 fine particulate matter is one of the most dangerous air pollutants, penetrating deep into lungs and bloodstream. The CR Box with HEPA H13 filtration captures 99.95% of PM2.5 particles, protecting your family from harmful pollution. London averages 10-15 µg/m³ PM2.5 - above WHO guidelines.

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 →

HEPA H13 captures 99.95% PM2.5 particles
From £144 vs £300+ Dyson Pure Cool
550 m³/h CADR vs 180 m³/h Dyson
London PM2.5 10-15 µg/m³ - above WHO limit
Free UK shipping - use code STAROFFER 10% off

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.

How We Compare to Commercial Brands

Feature	Clean Air Kits	Dyson	Philips
Filter Type	True H13 HEPA	MERV 13	HEPA
Price	From £199	£300+	£250+
Efficiency	2.4x better	Baseline	1.2x
Filter Cost	£15/filter	£65+	£40+

See more comparisons: vs Xiaomi | vs Blueair | vs Levoit

Air Quality Across Europe

Air pollution affects millions across the EU. Our purifiers are helping families breathe cleaner air in major cities.

🇬🇧

London

Berlin

Paris

Madrid

Rome

Amsterdam

View all EU pollution hotspots →

Air Purifiers for Health Conditions

Hay Fever & Allergies

Relief from pollen and allergens

Asthma Support

Remove asthma triggers

Baby & Nursery

Safe air for little ones

Elderly Care

Protect vulnerable adults

Explore More Air Quality Topics

Product

Technical

Filter

Room

Health

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Latest Air Quality Insights

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Cold and flu season is here. Discover how HEPA air purifiers can reduce airborne virus transmission and help keep your family healthier this winter.

2025-10-01

Preparing Your Home for Allergy Season

Don't wait for symptoms to start. Prepare your home now for a comfortable allergy season.

Understand the Science

All Technical Terms →

Free Interactive Tools

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Real-time pollution data

Room Calculator

Find your ideal CADR

Cost Comparison

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Frequently Asked Questions

What is a PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter? +

What are the main benefits of a PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter? +

The key benefits of a PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter include: HEPA H13 captures 99.95% PM2.5 particles; From £144 vs £300+ Dyson Pure Cool; 550 m³/h CADR vs 180 m³/h Dyson; London PM2.5 10-15 µg/m³ - above WHO limit. Each kit is EU-certified and independently tested by HouseFresh.

What makes a PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter different from standard air purifiers? +

The PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter uses the Corsi-Rosenthal Box design — a research-backed configuration proven in university studies to deliver 2–4× the clean air delivery rate of similarly-priced commercial units. It is CE certified, Energy Star 2026 compliant, and independently tested by HouseFresh.

How does a PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter compare to commercial air purifiers like Dyson or Philips? +

A PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter from Clean Air Kits has been independently tested by HouseFresh to be 2.4× more efficient than commercial alternatives costing 3–4× as much. At £144.00 (fanless kit) vs £399+ for Dyson, a PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter saves up to £885 over 5 years including filter costs.

Where can I buy a PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter? +

The PM2.5 Filter Guide UK - How CR Box Removes Fine Particulate Matter is available at https://cleanairkits.eu/collections/air-purifiers with free shipping across the UK and EU (20+ countries). Use promo code STAROFFER for 10% off your first order. Orders typically arrive in 3–5 working days.

Почати

CR Box Україна: Зберіть за 30 хвилин менш ніж за 4000 грн. Безкоштовна доставка. Та сама фільтрація HEPA 99.95%, що і у брендів за 12000+ грн. Сертифікація Energy Star 2026. Замовте комплект DIY повітроочисника сьогодні.

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