The APA with a certified and properly installed filter, can assist in the filtration of breathable air and reduce the inhalation of contaminants.

APA adaptor has a non-return valve, so only fresh air passes through the filter and only filtered air enters into the mask.

The exhausted air has a different channel and it is expelled from the lower part of the mask, where another non-return valve ensures air will only exit from there.

(In the open source project is also available the design of  the Exhausted Valve Cover 22mm: an another adaptor made to filter the exhaled air).

Our snorkeling masks breathing technology is patented and certified. The airflow and the CO2 levels are tested and safe.

The converted mask is a reusable and cleanable full-face shield.


The adaptor kit allows to connect most common filters to the mask.

APA is compatible with all the filters with EN 148-1 connection.

RD40-22mm can be screwed on APA to connect HEPA filters (40mm 1/7″ threaded outlets).


All the Ocean Reef mask are compatible with our optical lens support.

Lenses are available in different graduation.


To filter exhausted air, wear a surgical mask on ARIA or install a filter with the exhaust valve cover.



SKU: M40040-SP


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