5000 portable air cleaners are on the way for schools - but they won't land in time for the start of the school year.
Just 500 are expected to arrive by March, with the rest to be delivered three months later.
Public health experts have been campaigning for improved ventilation inside classrooms, to prevent any build-up of Covid contaminated air.
The New Zealand Principals' Federation president Cherie Taylor-Patel spoke to Māni Dunlop.