Worksafe has recently released an advisory relating to P2 disposable masks.
Due to the increased demand of these masks resulting from COVID-19 many non-compliant masks have/are entering NZ to meet the supply issues. While these are likely sufficient to limit the effects of people coughing and sneezing to help contain the virus they are not suitable for managing the risks around breathing chemicals and dusts like silica and asbestos.
If you are struggling to source masks from your usual mask suppliers make sure that any you find for chemical/dust risk management are compliant with AS/NZS 1716:2012.
There are also international standards for respirators that we consider to be equivalent to AS/NZS 1716:2012:
N95 masks that are rated compliant by the US National Institute for Occupational Safety and Health (NIOSH)
European ‘FFP2’ masks that are compliant under EN149:2001
Chinese ‘KN95’ masks that are compliant under GB2626:2006 (2019)