Press Release – Ministry of Health A quality assurance check showing some face masks used in the health sector dont fully meet specifications wont have any impact on national supply, the Ministry of Health said. The Ministry of Health has today advised DHBs to put on hold their … A quality assurance check showing some face masks used in the health sector don’t fully meet specifications won’t have any impact on national supply, the Ministry of Health said. The Ministry of Health has today advised DHBs to put on hold their stocks of one type of face mask, as they do not fully meet the agreed standards for use in New Zealand healthcare settings.