Cleaner Temple Air System


The novel Eco-Joss Paper Furnace, developed by Hong Kong Productivity Council (HKPC), can help remove particulates caused by burning joss papers and candles to improve air quality in traditional Chinese temples.

  • Cleaner Temple Air System 0
  • Cleaner Temple Air System 1
  • Cleaner Temple Air System 2
Technical name of innovation
Eco-Joss Paper Furnace
Commercialisation opportunities
Technology licensing agreement
Problem addressed

Burning joss papers or incense is a Chinese tradition in paying tribute to the ancestors or spiritual worship. These burning activities usually create air pollution to the environment in terms of smoke emissions. This solution with high particulate removal efficiency can improve the indoor air quality by removing smoke generated from burning joss papers.

  • The solution adopts adopted advanced industrial grade air pollution control system, using electrostatic precipitation that can to remove over 90% of smoke particles from the flue gas.
Key impact
  • The solution can help maintain good air quality at traditional Chinese temples and nearby places, and allow traditional Chinese culture to be preserved in an environmentally friendly way.
  • Equipment is compact in size and requires minimal installation space, thereby faciliating deployment in historical buildings with space constraints.
  • The equipment operation is simple and user-friendly.
  • Silver Medal at the “2019 Geneva International Exhibition of Inventions”
  • Chinese Temples / Colubmaria / Cemeteries


  • Hong Kong Short-term Patent: HK1062768
Hong Kong Productivity Council (HKPC)

The Hong Kong Productivity Council (HKPC) is a multi-disciplinary organisation established by statute in 1967, to promote productivity excellence through integrated advanced technologies and innovative service offerings to support Hong Kong enterprises. HKPC is the champion and expert in facilitating Hong Kong's new industrialisation empowered by i4.0 and e4.0 - focusing on R&D, IoT, big data analytics, AI and Robotic technology development, digital manufacturing, etc., to help enterprises and industries upgrade their business performance, lower operating costs, increase productivity and enhance competitiveness. 

The Council is a trusted partner with comprehensive innovative solutions for Hong Kong industries and enterprises, enabling them to achieve resources and productivity utilisation, effectiveness and cost reduction, and enhanced competitiveness in both local and international marketplace. It offers SMEs and startups immediate and timely assistance in coping with the ever-changing business environment, accompanying them on their innovation and transformation journey.