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"Air pollution, the fourth leading risk factor for early death, added 6.67 million global deaths in 2019"

PACO-Plasma Assisted Catalytic Oxidation 

is the revolutionary technology co-developed by ASA Innovation & Technology Limited and City University of Hong Kong. The technological break through is the extraordinary filtration efficiency with prolonged filter life span.


Patented Technology

Globally Exclusive

Co-developed with city university of Hong Kong

Powerful Virus elimination.

Did you know?

PACO can destroy 99.99% viruses (H3N2) which is tinier than COVID-19 ! *

* H3N2 = 0.08-0.12 microns
  COVID-19 = 0.125 microns

PACO Nanotech Working Principle

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