Commenting as the Permanent Secretary for the Department for Education indicates during questioning by the Public Accounts Committee that schools will need to fund the purchase of air purification devices where they are needed, James Bowen, director of policy for school leaders' union NAHT, said:

"Given how crucial ventilation is in the fight against the spread of Covid in classrooms, we simply cannot work on the basis that only those schools that can afford air purification devices are able to access them. The government owes all children a safe and comfortable environment in which to learn, with minimum disruption to education. If air purifiers can help with that they must be available to all."