About Us

About Us

Established in 2015 by Profit Royal Pharmaceutical Limited, NASK is the pioneer of revolutionizing and commercializing the use of nanofibers. Our inventions include NASK Nanofiber, a patented and award-winning innovative material.

Under our motto “Protect with Technology”, we believe that the power of advanced nanofibers has infinite possibilities. NASK maintains a strong focus on market-driven research and development process, as we strive to make commercially viable products using our technologies to benefit our society. This includes the application of our nanofiber on various Personal Protective Equipment (PPE) and healthcare products. NASK has recently implemented our cutting-edge nanofibers technology in respirators, which have been instrumental in safeguarding our community throughout the COVID-19 pandemic. The NASK Respirator is the world’s first nanofiber respirator which has been fully certified by the US National Institute for Occupational Safety & Health (NIOSH).

Our Vision and Mission

Our Vision and Mission


We are committed to enriching the body, mind and soul of all mankind through the development of high quality medical devices and personal health care products.


We have strong belief in 3 core values which are fundamentals of our corporate policy:

  • Serve our customers and meet market demands with innovative and high quality products and services through continuous improvement;
  • Strive for excellence in our products and services so that our brand becomes the first choice of customers;
  • Ensure our products will fully comply with international safety and quality standards and contribute to the wellness of all mankind, the environment and the society.

CEO's Message

“We are committed to protecting the safety and wellbeing of our communities and beyond.”

- Sarinda Kwok
Co-founder and CEO

CEO's Message

The COVID-19 pandemic has changed all of our lives and reshaped the world. As a producer of respirators, we are committed to protecting the safety and wellbeing of our communities and beyond.

Established in 2015 by Profit Royal Pharmaceutical Limited, NASK is devoted to the development of advanced nanofiber technology and applying them on various kinds of personal protective equipment (PPE). When the world was seriously hit by the pandemic in 2019, our communities were in desperate need of PPEs to maintain safety and protect ourselves against disease. In the span of three years, we developed the NASK Nanofiber Respirator to support the healthcare profession fighting the pandemic at the frontline.

Since then, our products have been exported to 10 markets, including Southeast Asia, Europe, South Africa and Middle East, helping to protect millions of lives. The NASK Nanofiber Respirator is the first product that incorporates our patented material. Since its successful launch into the market, NASK has won numerous international awards and recognitions.

During the pandemic in 2019 and 2020, we faced great challenges in keeping up with the demand of our respirators as we worked around the clock to ensure consistent supply to frontline medical professionals who continue to make great sacrifices to protect our communities.

I would like to express my profound gratitude to our incredible team who has been working hard to ensure the supply and top quality of our respirators amidst various challenges.

Under our motto “Protect with Technology”, we will continue to foster a culture of professional excellence. Our new laboratory will strengthen our research and enable our development team to perfect our technology. In the near future, we expect to launch more products with our revolutionary nanofiber technology.

Meanwhile, we will continue to treat sustainability as one of our top priorities. With the Environmental, Social, and Governance (ESG) policy in place, NASK is committed to developing renewable materials and solutions that help us make products that are environmentally and socially friendly. Our smart manufacturing lines allow us to source lower impact materials, improve production efficiency, and empower customers to adopt a more sustainable lifestyle. We treasure our well-established long-term relationships with customers and stakeholders, as we vow to continue supplying high quality, innovative and sustainable products, and services.

I look forward to sharing a brighter future we can all create together.




Profit Royal Pharmaceutical Limited was established.


As the leader in the development of NASK products, Profit Royal Pharmaceutical commenced research and development of the advanced Nanofiber technology with Nano and Advanced Materials Institute, which is designated by the Innovation and Technology Commission of the Hong Kong Government as a Research and Development Center for nanotechnology and advanced materials.

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We won Silver Medal at the International Exhibition of Inventions of Geneva.


We won Merit Award at “Technology Start Up” Award organized by the Hong Kong Federation of Innovative Technologies and Manufacturing Industries.


We are committed to setting up a research and development base and manufacturing center in Hong Kong, NASK successfully invented the world’s first respirator with advanced bactericidal technology.


NASK Nanofiber Respirator (NIOSH N95) is the world’s first nanofiber respirator to be approved by the US National Institute for Occupational Safety & Health (NIOSH), earning a full certificate.


We won Gold Medal with Jury Commendation organized by International Exhibition of Inventions of Geneva.


We became the finalist in the annual R&D 100 Awards organized by the Office of Science, Department of Energy and Science, Unites States of America.


As the COVID-19 pandemic swept across the world, NASK supported the fight against the pandemic in Hong Kong by supplying BSI & NIOSH approved respirators to residents, public and private healthcare organizations, hospitals and government departments.


NASK nanofiber technology is patented in the United States of America, Japan, mainland China and Hong Kong.


Our management system has complied with the requirements of ISO 13485:2016/NS-EN ISO 13485:2016 in the Design, Manufacture, Sales and Distribution of surgical masks.

Company Structure