Air purifiers built for UK schools and academy trusts
Medical-grade MERV-13 filtration designed for classrooms: whisper-quiet, a fraction of the running cost of HEPA, and certified. Real protection that teachers actually keep switched on.
🏫 Kitting out multiple classrooms? Save 15% on any 4+ air purifiers with code CLASSROOM15.
Shop the bundle →Built around the three reasons classroom purifiers get switched off
Cost, energy use, and noise are what stop traditional filtration working in real schools. Each unit is designed to remove all three.
A fraction of the cost of HEPA
Lower unit price and cheaper replacement filters than typical school HEPA purifiers — using standard MERV-13 media, not proprietary cartridges. Certified to UL507, FCC and CARB.
6–18 watts, not 60–120
A high clean-air delivery rate per watt means you can run a unit in every room all day for a few pounds a year — cheap enough that it's never switched off to save energy.
Whisper-quiet = actually used
Cleans the room at a low setting instead of a loud turbo mode. One setting, plug-and-play, so teachers leave it running — which is the only way clean air happens.
The science points straight at the classroom
The classroom itself — enclosed, densely occupied, 30 people sharing the same air for an hour — is repeatedly identified as the primary transmission site in a school. Two of the largest real-world school studies, in the US and Italy, measured what filtration and ventilation actually change inside that room.
Ventilation + filtration cut incidence by 48%
A CDC study of 169 Georgia elementary schools found COVID-19 incidence was 39% lower with improved ventilation — and 48% lower where ventilation was combined with HEPA filtration. Filtration on top of fresh air out-performed fresh air alone.
Up to 82.5% lower infection risk at 6 air changes/hr
A study of over 10,000 classrooms in Italy's Marche region found infection risk fell 40% at 2.4 air changes per hour, 66.8% at 4, and 82.5% at 6 — protection scaling directly with how fast the room's air is cleaned.
Why CO2 monitors went to every state school
The DfE distributed CO2 monitors across state schools in England because ventilation is uneven room to room. Where fresh-air targets are hard to hit, portable filtration is the recommended next step — the extra air changes the studies above point to.
Clean air that pays for itself in attendance
Cleaner classroom air means fewer illness-related absences. Because the units are inexpensive to buy and run, a whole-classroom rollout sits comfortably inside routine school budgets — and the attendance return builds every term.
Common funding routes: devolved formula capital, the Condition Improvement Fund (eligible academies and sixth-form colleges), trust capital budgets, and PTA or parent-led fundraising. Ask us about a trust-wide rollout →
A certified unit for every school space
From personal desktop units to high-capacity hall purifiers — certified, whisper-quiet MERV-13 filtration for every classroom, lab, library and lecture theatre. Live UK pricing is on the store; bulk and trust pricing is by quote. Buying 4+ for multiple rooms? Use code CLASSROOM15 for 15% off.
| Unit | Best for | Coverage | Occupancy | Buy |
|---|---|---|---|---|
| Exhalaron | Desktop / personal | ~13 m² | 2–4 people | Shop → |
| Triple Exhalaron | Compact rooms | ~17 m² | 3 people | Shop → |
| Brisk Pillar Kit | Medium rooms | ~30–39 m² | 5–6 people | Shop → |
| Aerating End Table | Furniture-grade | ~48 m² | 8 people | Shop → |
| Luggables | Large rooms | ~41–56 m² | 7–10 people | Shop → |
| Brisk Box Ultra | Maximum coverage | ~61 m² | 11 people | Shop → |
Students build the same purifiers their school uses
The only air-purifier brand offering certified classroom STEM kits — combining indoor-air-quality education with real electronics, engineering and maker skills.
Real air-quality skills
Students learn how indoor air quality affects health and attainment, alongside basic electronics and engineering principles.
Flat-pack, budget-friendly
Shipped unassembled to cut cost — ideal for budget-conscious departments and cross-school programmes.
Programme-ready
Used in schools and universities worldwide: a tangible, health-focused project students actually care about.
Get a tailored quote for your school
Tell us your school or trust, the number of rooms, and typical class sizes, and we'll send a tailored quote — including bulk and trust-wide pricing — within one working day.
Prefer to talk? Email us at schools@cleanair.academy
Clean air, explained for schools
Practical, evidence-based reading for heads, business managers and procurement teams.
Classroom air quality
What matters, what DfE guidance expects, and how ventilation and filtration work together.
GuideCO2 monitors in classrooms
What the readings mean, a simple classroom routine, and where filtration fits.
GuideFunding clean air
Devolved capital, the CIF, trust budgets and PTA fundraising — plus the case for governors.
GuideAir purifier vs ventilation
What each does, and what US and Italian classroom studies actually measured.
GuideCorsi-Rosenthal box for classrooms
Why its high-airflow MERV-13 design suits schools, and DIY vs certified units.
What school leaders and procurement teams ask
What are the best air purifiers for schools and classrooms in the UK?
The most practical classroom units combine high clean-air delivery with low noise and low running cost, so teachers leave them on all day. High-airflow MERV-13 units (built on the Corsi-Rosenthal principle) capture around 93% of airborne particles while using a fraction of the electricity of sealed HEPA towers — which is what makes a whole-school or trust-wide rollout affordable.
Why is indoor air quality important in schools?
Classrooms are densely occupied for long periods, so CO2 and airborne particles build up quickly. The DfE distributed CO2 monitors to state schools in England precisely because ventilation is uneven; where fresh-air rates are hard to reach, portable filtration lowers airborne particle and pathogen levels and can reduce illness-related absence.
How much do they cost to run?
Each classroom unit draws roughly 6–18 watts, versus 60–120 watts for typical HEPA towers, so annual electricity is a few pounds rather than tens of pounds per unit. Replacement MERV-13 media is inexpensive and standard — not a proprietary cartridge.
Are they quiet enough not to disrupt teaching?
Yes. The units clean a classroom at a low, whisper-quiet setting rather than a loud turbo mode, so teachers keep them running instead of switching them off. Quiet operation is the single biggest factor in whether classroom air cleaners are actually used.
Can schools get funding or grants for clean-air kits?
Schools and trusts commonly fund air cleaners through devolved formula capital, the Condition Improvement Fund (for eligible academies and sixth-form colleges), trust capital budgets, and PTA or parent-led fundraising. Because the units are low-cost and cheap to run, a whole-classroom rollout is achievable within routine budgets. We're happy to help build the business case.
What certifications should procurement look for?
Look for recognised electrical and emissions safety certification (our units carry UL507, FCC and CARB), genuine MERV-13-grade media, and clearly stated clean-air delivery and noise figures at a normal running speed — not just a headline filter grade.
Can students build them as a STEM project?
Yes — flat-pack STEM kits let students assemble the same certified clean-air units used in their school, linking air-quality science with real electronics and engineering.
Do they work for universities and colleges too?
Yes. The same range covers lecture theatres, labs, libraries and shared study spaces, with higher-capacity units for large rooms. Trust and multi-site pricing is available by quote.
Push for cleaner air in your child's school
Want to advocate for cleaner classroom air in your school, academy or trust? Change usually starts with a single conversation. Ask us for the evidence pack and a simple cost breakdown you can share with your head or governing body.
Get the advocacy packQuick facts to share
• MERV-13 captures ~93% of airborne particles.
• ≥6 air changes/hour can cut airborne risk by up to 80% (Lancet).
• 6–18 W per unit — a few pounds a year to run.
• Quiet enough to run all day, every lesson.