London Air Quality & DIY Air Purifiers

How Clean Air Kits Help Londoners Breathe Easier

London's Air Quality Challenge

7.2 µg/m³
PM2.5 Annual Mean (2024)
Lowest on record, but still exceeds WHO guideline of 5 µg/m³
49%
NOâ‚‚ Reduction (2016-2023)
Roadside nitrogen dioxide dropped dramatically
1,121
Respiratory Admissions per 100k
London rate increased 5% year-on-year (2024)

Respiratory Health Impact in London

Asthma & Air Quality Crisis

  • 17% Surge in Asthma Admissions: Adult emergency asthma hospital admissions rose to 85 per 100,000 in England (41,367 total admissions in 2024)
  • 5.4 Million People Affected: Currently receiving asthma treatment in the UK, with 1,200+ preventable deaths annually
  • Outer London Hotspots: 24 of the 30 GP practices with highest asthma prevalence are in outer London boroughs
  • Road Proximity Risk: 70% of high-asthma GP surgeries are within 1 mile of London's busiest roads (A40, A127, A41)
  • Life Expectancy Impact: Air pollution reduces average London life expectancy by 7-8 months

PM2.5 Levels vs WHO Guidelines

WHO Guideline
5 µg/m³
London 2024
7.2 µg/m³
WHO Interim
10 µg/m³

*WHO 2021 Guidelines. London has improved but still exceeds safe levels.

How DIY Air Purifiers Help Londoners

Control Your Indoor Air

While outdoor pollution has improved 49% since 2016, indoor air can be 2-5x more polluted. Our HEPA-based DIY kits remove 99.97% of PM2.5 particles in your home.

Affordable Protection

With asthma hospital admissions costing the NHS millions, prevention is key. Build a high-performance purifier for 60-70% less than commercial units.

Proven Effectiveness

300-600 CFM CADR performance comparable to premium units. Energy Star 2025 certified components tested by Intertek.

Protect Your Family from London's Air Pollution

Build your own high-performance air purifier in under 30 minutes

Get Your DIY Kit with Promo Code →

Official Data Sources & Citations

UK Government Air Quality Statistics

PM2.5 and NOâ‚‚ data from GOV.UK Air Quality Statistics (June 2025 update)

gov.uk/air-quality-statistics →

Greater London Authority Report

Air Quality in London 2016-2024 comprehensive analysis (March 2024)

london.gov.uk/air-quality →

Respiratory Disease Profile (GOV.UK)

Hospital admissions and asthma statistics (June 2025)

gov.uk/respiratory-disease →

London Air Quality Network

Real-time monitoring from 150+ reference-grade stations (Imperial College London)

londonair.org.uk →

WHO Air Quality Guidelines

2021 Global Air Quality Guidelines for PM2.5, NOâ‚‚, and other pollutants

who.int/air-quality →

Asthma + Lung UK

Asthma prevalence and GP practice data across London boroughs

asthmaandlung.org.uk →

Understanding WHO Air Quality Guidelines (2021)

Pollutant WHO Guideline (Annual) London 2024 Status
PM2.5 5 µg/m³ 7.2 µg/m³ (exceeds)
PM10 15 µg/m³ Meeting target
NO₂ 10 µg/m³ Improving, approaching target