In the spring of 2020, in response to the demand of medical masks in Hong Kong and worldwide , HK Mask Manufactory Limited was established. With the responsibility of a social enterprise, the team actively search for suitable factory venue, building dust-free production room, purchase mask production machinery and equipments from overseas, at the same time we also sources high quality raw materials around the world.
In April of 2020, our production cleanroom is certified by SGS with ISO14644-1:2015 Class 8 certification, production management ISO 13485.
Masks are tested and certified by Nelson Labs and Intertak with ASTM Level 3 result.
Masks tested result by Nelson Labs and Intertak:
✅Fluid Resistance 160mmHG - PASS
✅Differential Pressure Average 3.6
✅Bacterial Filtration Efficiency ≥99%
✅Particle Filtration Efficiency ≥99%
✅Viral Filtration Efficiency ≥99%
✅Flammability Class 1 Test - PASS