A bright American public-school classroom where children sit at their desks facing the teacher, beside large daylight windows.

A scoping initiative from the Clean Air for Schools Fund at Renaissance Philanthropy

Clean air in every classroom.

We are designing a global competition to help cities equip their schools with high-quality air cleaning, and to make that the standard everywhere. We are gathering interest now to find out whether it can work.

Register interest

Register your city’s interest.

Registering is non-binding. It tells us there is demand, helps us design a competition worth entering, and means you hear first if it moves forward.

  • Non-binding. Registering is not a commitment.
  • You hear first if the competition moves forward.
  • It helps us shape a competition worth entering.

Not registering a city? Choose “Supporting partner organization” or “Funder or philanthropy” above, and tell us how you can help.

* Required. Short on purpose, since public-sector staff are busy.

Defaults to the United States. Year one focuses on US cities; others are welcome for future rounds.

Coalition partners you could help convene (optional)

Registering is non-binding and is not a commitment.

The opportunity

Schools are where clean air does the most good.

Children spend about half their waking hours in classrooms, and the air there shapes how well they learn, how often they show up, and how healthy they are. Poor indoor air raises the risk of airborne infection and asthma, drives absenteeism, and dulls concentration.

Schools are the right place to start. They are 10 to 15 percent of non-residential floor space in most countries and the largest category of crowded indoor space run by a small number of decision-makers. In the United States, the 200 largest districts enroll roughly a third of all students. A handful of decisions can change the air that millions of children breathe, and cut transmission in the wider community at the same time.

The obstacle is not the technology, which is mature and inexpensive. It is that no one has built the path that takes clean indoor air from a good idea to a funded line item in every major city. That path is what this program would build.

A sleek illustration of a bright classroom with daylight and gentle currents of clean air.
½
of waking hours children spend in classrooms
10–15%
of non-residential floor space is schools, in most countries
~⅓
of US students enroll in the 200 largest districts

Clean indoor air is also a frontline defense against the next outbreak. Physical air cleaning works against any airborne pathogen, needs no advance knowledge of the threat, and keeps working in the weeks before anyone knows a new one is spreading.

How it would work

Scoping now. A competition, if it launches.

Right now we are scoping: testing demand and feasibility with cities and partners. If the competition launches, it would run roughly like this.

up to $75M If it launches, the program could direct catalytic capital on this order, with awards tiered by city size and ambition and matched by a substantial local contribution.

  1. 1

    Apply as a coalition

    Cities apply as coalitions, not as single offices.

  2. 2

    Independent selection

    An independent panel selects a cohort.

  3. 3

    Capital and partnership

    Selected cities receive capital and an operating partnership, and commit a substantial local match from city, state, district, or federal sources.

  4. 4

    Funds follow results

    Funding is released against independently verified deployment milestones, so the money follows real installations and sustained performance, not promises.

What we are looking for in a city

Cities ready to lead.

We are looking for cities ready to lead: a mayor’s office or district willing to put clean classroom air on the agenda, a coalition they can bring to the table, and a willingness to match investment locally. You do not need all of that solved to register. Registering interest starts the conversation and helps us shape a competition worth entering.

Ambition

A mayor’s office or district ready to put clean classroom air on the agenda.

A coalition

Partners you can bring to the table.

A local match

A willingness to match investment locally.

Where it starts

Year one is expected to focus on cities in the United States. Cities elsewhere are welcome to register interest for future rounds.

A modern public school building with a bright glass facade and an open plaza.

Why it matters

A handful of decisions can change the air that millions of children breathe.