Rotorua Lakes High School has closed its science laboratories amid nationwide fears gauze mats used with Bunsen burners at schools may be contaminated with a rare form of asbestos.
More than 113 schools across the country that have been supplied the mats since April 2016 have been asked to dispose of them and the product, originally from China, is being recalled.
But Rotorua Lakes High School principal Bruce Walker said his school didn't think that action was going far enough and it has instead closed the labs and got the mats tested itself.
The school is waiting for the results to confirm if asbestos is present.
Walker said the school felt testing the mats and air within the labs was the right thing to do - so staff and students could be assured it was safe to go back inside.