Onis is part of the Duomed Group. Order processing, delivery and invoicing of the protection masks is handled by our sister company Acertys, located in Aartselaar (Belgium). Orders can be placed directly through Acertys via e-mail, obviously you can enjoy the same service as offered by Onis. For more information and rates, please go to our Acertys website.
All our masks have a CE certificate and are suitable for sale in the European market. But at Duomed Group, we go one step further. We have subjected our masks to additional quality tests.
Tested and approved
The Danish Technological Institute has tested our masks for breathability, bacterial filtration efficiency and microbial purity.