The Defence Force says it is confident it has the right equipment and procedures in place to keep its personnel working in managed isolation facilities safe.
A military worker at the quarantine facility in Auckland has contracted Covid-19 and passed to a second Defence staffer who then flew to Wellington.
A PPE expert has called the protective gear worn by managed isolation workers some of the worst in the developed world.
Air Vice Marshal Tony Davies told the Moring Report he believes staff are sufficiently protected.
But he says if health officials advise that staff should start using the more protective N95 masks it will provide them.