Solutions That Work

Practical approaches for improving classroom air quality

The Path Forward

Moving the needle on student achievement is notoriously difficult. Most educational interventions show modest effects despite substantial costs. Clean air represents a rare exception—a simple, affordable intervention with large, measurable benefits for learning, health, and equity.

The evidence supporting classroom air quality improvements is robust and growing. What's needed now is implementation at scale:

School Leaders

Can pilot air purifiers in high-need classrooms and expand based on results

Policymakers

Can establish indoor air quality standards and funding mechanisms

Communities

Can advocate for healthy learning environments as a basic educational right

Solutions That Work

Many schools think you need to do expensive HVAC upgrades. What people don't realize is that adding air purifiers to classrooms, especially in old schools with poor ventilation, is one of the most effective interventions available. You generally can't get enough equivalent air changes per hour (eACH) without them. And it's extremely affordable.

Portable Air Purifiers

Portable air purifiers represent the most cost-effective solution. At $500-1,000 per classroom with <$100 annual operating costs, they deliver cognitive and health benefits that would cost thousands through other educational interventions. Installation requires no special training—plug in, turn on, change filters annually.

$500-1,000 Initial cost per classroom
$100-200 Annual operating costs

The Case for Your District

  • Minimal burden: Just plug in and change filters annually
  • Maximum impact: Benefits all students, especially those near pollution sources
  • Proven results: Growing evidence base across multiple countries
  • Cost-effective: Few dollars per student yearly vs. expensive HVAC upgrades

Ventilation Improvements

Ventilation improvements provide additional longer-term solutions. Studies show direct correlations between ventilation rates and academic achievement, with measurable progress in math and reading when schools improve air exchange rates. However, they don't replace adding air purifiers.

Air Quality Monitoring

Air quality monitoring makes the invisible visible. Real-time CO₂ and particulate matter sensors help schools identify problems and verify solutions are working.

1. Choose Appropriate Air Cleaners

Learn How to Size Air Cleaners

2. Installation & Operation

3. Maintenance & Filter Replacement

Ready to improve air quality in your school?

Get in touch to learn more about implementation guidance and support.