Project Extension of a Prototype Air Purifier that Tackles PM 2.5 Pollution

The Rajaprajanugroh Foundation under Royal Patronage and GC signed a Memorandum of Understanding (MoU) to test and extend development of a prototype air purifier that aims to play a pivotal role in addressing PM 2.5 pollution. The device will serve as an affordable and uncomplicated prototype for the public to easily reproduce.

Because PM 2.5 pollution continues to be a critical issue, in part due to climate change, we remain committed to helping address this issue while standing side by side with Thais to create a better quality of life. GC and the Rajaprajanugroh Foundation under Royal Patronage signed a Memorandum of Understanding (MoU) on the Testing and Extension of the Prototype Air Purifier to Tackle PM 2.5 Pollution in February 2020.

In the first stage, a total of 13 prototype air purifiers (series 1) were produced by the foundation including eight units through GC’s financial fund, of which two are being piloted at Wat Ratchabophit Sathitmahasimaram Ratchaworawihan and Sra Pathum Palace in Bangkok’s Pathumwan District. The purifiers are equipped with a ‘Venturi Scrubber,’ a wet scrubber system that makes use of water to capture small particles in the air.

Subsequently, GC provided a team of researchers, including its proprietary knowledge and design innovations, to develop the air purifier series 2

using proven filtering techniques that significantly reduce PM 2.5 levels. Test results of the air purifier series 2 showed a 95.7% capture capacity of PM 2.5. When tested for dust purifying effectiveness, the purifier can reduce mass density of PM 2.5 from 500-700 micrograms to 20-30 micrograms per cubic meter in a closed room and from 700-2,000 micrograms to 50-60 micrograms per cubic meter in an open room.

The high-performance filters offer outstanding performance featuring three distinct filtration layers that capture different types of dust, allowing the filters to last longer resulting in lower maintenance costs. The first layer consists of a pre-filter which captures sediment, the second consists of a medium filter for bag filtering, while the third consists of a fine filter that traps ePM1 with a particle size ranging from 0.3-1 microns averaging 95% capture and responding to EN779: 2012, which is the most common standard for classifying air filters, equivalent to ISO 16890: 2016, the new standard for classifying air filters.

The series 2 device is affordable and comes in an uncomplicated design for the public to easily reproduce. GC provided the air purifier series 2 to the foundation in February 2021.

Last Update Apr 2021