Air Treatment Expert | RHT Industries Limited | Hong Kong - RHT
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Innovative Technology
Makes our Life Better
RHT - Your Air Treatment Partner NCCO Product
Hope and trust
Ready to find out more? ncco product
Solving Problems with
unimaginable New Technology
12 years without replacing filter ncco product

Who is RHT?

RHT Industries Limited is a technology company that focuses on the sustainable development of innovative technologies in material sciences, headquartered in Hong Kong Science Park.

In cooperation with the member of Hong Kong University of Science and Technology Entrepreneurship Program, RHT successfully developed and patented the Nano-Confined Catalytic Oxidation (NCCO) technology. Today, NCCO technology is utilized by many companies and industries worldwide, including over 300 medical institutions, and large corporations and organizations such as HSBC, Hong Kong International Airport and MTR Corporation. RHT successfully launched household air purification products under the “RHT“ and “b-MOLA” brands, and is currently ranks among the top three brands in Hong Kong by market share.

RHT’s professional research team consists of world-class scientists and researchers from leading universities and research institutions from around the world, including the University of British Columbia, and the University of Vienna. Our team has achieved impressive results in the application of material sciences, and will continue to create innovative materials that will improve our quality of life.

The Concept of RHT

RHT is composed of three concepts, namely Regeneration, Hope, and Trust. These three also constitute the brand spirit of RHT. It is determined to bring new hope with better technology, build trust between customers and the company, and guide the market to air purification reform.

RHT – Solve your problems with new technology

Why RHT?

Filter Life Up To 12 Years

Generally, traditional adsorptive filters such as Activated Carbon filters can only work for 3 to 6 months because they will accumulate pollutants & waste, and will need to be frequently replaced. The NCCO filter can cycle and decompose such pollutants & waste in the Air Treatment System, and experiments have shown that the ultra-long lasting filter can be used for up to 12 years.

Avoid Secondary Pollution

The NCCO system has the advantage of self and consistent regeneration, decomposing gaseous pollutants into harmless amounts of water and carbon dioxide. Such sustainable regeneration avoids any ‘secondary pollution’ crisis encountered in filter saturation by pollutants in traditional air purification technologies.

Energy Saving

NCCO technology not only prolongs the life of the filter, but also has a powerful odor removal power, which reduces the demand for the number of air changes and air-conditioning consumption in indoor environments. This achieved a very effective energy cost savings and the longer filter life, by avoiding the need for frequent filter replacement and disposal of old filters. Our scientific research has enabled us to provide solutions to issues emanating from large amounts of industrial waste, resulting in elimination of related management costs.

Green & Sustainable Research

The use of NCCO technology reduces wastes from mass manufacturing and disposal of our filter, it is kind to our natural environment, conforms to green values and increases the company’s environmental protection genes.

Intelligent Scientific Research To Bring New Ideas

Our company has more than 20 years of practical research experience in environmental protection technology. We cooperate with first-class scientific research talents to continuously develop cutting-edge technology and instrumentation.

Business Footprints All Over The World

The company's service targets span the medical industry, banking industry, government departments, education sector, industrial and commercial sectors, hotels and residential industries, assisting more than 500 commercial customers around the world to improve air quality.


Kill Coronavirus (Covid-19)


Global Medical Institution Partners

20+ years

Air Purification Service Experience


Global Industrial, Commercial, and Residential Service Clients

Professional Team of RHT

Dr. Cathy Jim

PhD, HKUST, NCCO inventor, published more than 30 academic articles in the professional field

Dr. Ezra Kwok

Adjunct Professor UBC, PhD; PEng MD; CCFP; CCAMA

Dr. Yeung Kee Sin Tony

FHKCCM, MBChB (SHEFF) 1982; DAvMed RCP (Lond); AFOM RCP (Lond); FHKCCM; FHKAM (Community Medicine)

Dr Karl Lintner

PhD in Biochemistry from Vienna University (Austria)