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Ventilation in schools

Good ventilation in schools and how to achieve it. 


This joint union guidance presents a step-by-step plan for assessing ventilation levels and bringing about any improvements needed. If management is reluctant to engage, go back to members, discuss the position and agree a plan. Members may wish to demonstrate how strongly they feel by signing a letter or raising it with the governing body.

Step 1 – Gathering evidence of poor ventilation 

Indicators of poor ventilation

Step 2 – Workplace ventilation audit 

Key questions for employers and risk assessments

Step 3 – Monitoring carbon dioxide levels 

Carbon dioxide monitors are not a solution to the problem of poor ventilation. They will indicate a problem but then something has to be done. 

Step 4 – Practical steps to ensure good ventilation

First steps to solving ventilation problems in the workplace

Step 5 – What if these measures are put in place but ventilation is still poor?

Air cleaning and filtration units are an effective means of reducing airborne transmission of aerosols where it is not possible to maintain adequate ventilation.

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