Established in 2009, Clean Air Network is the only dedicated air-issue focused NGO in Hong Kong. We believe that clean air, indoors and outdoors, is vital to the health, safety, and overall well-being of our communities.
During the past decade, CAN has made significant contributions—through a combination of education, media, research, and community engagement—to raising public awareness and building support for major government policy changes that improved Hong Kong’s roadside air quality by 36% to 88% between 2004 and 2024, resulting in over a 50% reduction in long-term health risks[1].
We are committed to raising awareness about the importance of both indoor and outdoor clean air and inspiring action among individuals and institutions to adopt effective practices that advance our vision and mission: “Clean Air for All”.
[1] Hong Kong Special Administrative Region Government, “Hong Kong’s air quality continues to improve, bringing over 50 per cent reduction in long-term health risks”, press release, March 21, 2025. https://www.info.gov.hk/gia/general/202503/21/P2025032100243.htm

Since 2009, being the only dedicated air-issue focused NGO in Hong Kong, CAN has been playing a pivotal role in shaping the Government clean air related policies through constructive dialogue and integrating various resources to drive effective and impactful development.
CAN has achieved multiple milestones over the years which led to the following key achievements:
Substantially enhanced public awareness of air pollution’s health impact through strong partnership with education, private, social welfare and other sectors.
Catalyzed significant government policy changes that improved HK’s air quality by 40%-60% from 2012-2022 through a combination of media, research and engagement works.
Initiated coalition with academia, industries and NGOs to address air quality issues holistically. Co-found the Zero Emission Mobility Consortium which helped shape Government’s policy on new energy vehicles.
Facilitated cross-disciplinary dialogues among experts of various fields to build knowledge. Organised forum to consolidate findings by various experts and build foundation for addressing IAQ issue in the future.
CAN was formed. Founding Board included Christine Loh, Anthony Ng, Marcus Shaw
Initiated city-wide Public Education Campaign
Co-hosted “Chief Executive Election Environmental Policy Forum”
Organised “Clean Air Drive” to promote new energy vehicles
Achieved key policy change that the Air Pollution Control Ordinance (Cap. 311) is updated to require a review of the Air Quality Objectives (AQOs) at least once every five years to continuously improve air quality and safeguard public health.
Achieved key policy change to phase out old and polluting Pre-Euro to Euro IV diesel commercial vehicles (DCVs) and set the service life limit of newly registered DCVs at 15 years
Achieved key policy change for Hong Kong to become the first port in Asia to mandate fuel switch at berth which reduced significantly the level of sulphur dioxide
Co-organised “Very DVRC” on walkability issue as a parallel for Walk21 Conference Hong Kong
HKSAR Government set out walkability policy “Walk in HK” with a view to creating a pedestrian friendly environment
Appointed as member of working group of Air Quality Objectives Review
Published “Citizen Clean Air Plan”
Co-initiated the “Zero Emission Mobility” Consortium
Achieved key policy change for HKSAR Government to commit 700 electric franchised buses and 3,000 electric taxis by 2027
Organised HK’s first “Clean Air Day” campaign
Organised the Indoor Air Quality (“IAQ”) Forum which was attended by 10 expert speakers and 100 guests with strong and diverse representations across sectors.