BB101 caps CO₂ at 1,500 ppm during occupied hours. Most UK classrooms exceed this for 40% of the school day. Pair air-quality monitoring with Medicair or Maxvac filtration and you have continuous evidence the building meets the standard.
Building Bulletin 101 (BB101) sets the ventilation standard for new and refurbished UK schools, and the DfE's 2023 IAQ recommendations now apply to existing schools as well. Ofsted and DfE compliance evidence is expected to include:
Monitor first, then filter where the data shows you need to.
One monitor per classroom — CO₂, PM2.5, chemical VOCs, temperature and humidity. Real-time alerts and year-round trend flag any classroom over BB101 thresholds.
HEPA H13 + carbon + concealed UV-C. Low noise to run during lessons. 800 m³/h covers a 60 m² classroom of 30 pupils at ~5 ACH. Deployed only in classrooms where monitor data flags an issue.
The high-flow unit (1,300 m³/h) for the dining hall, assembly hall and library — the high-occupancy spaces where CO₂ spikes hardest. Alpaire HEPA + Steribreeze® UV-C, proven in Addenbrooke's Hospital trials.
Includes 5× MEDI 8 (deploy where data flags) and 2× MEDI 10 (hall + dining). 15× classroom air-quality monitors quoted alongside, in your currency. Free site survey and 12-month consumables. Eligible for DfE Schools Capital Funding and condition-improvement bids.
Configure for my site →Every quote ships with the policy + data templates that a Section 5 inspection or LA estates review will accept.
Multiple peer-reviewed studies (Harvard / NIH / Wargocki) link occupied-hour CO₂ above 1,500 ppm to measurable drops in reading and maths performance. The DfE's 2023 IAQ guidance cites this directly.
Run my numbers →Five air-quality monitors in your busiest classrooms for 30 days, free. We'll send the data report at the end so you can decide whether filtration is needed and where.