Mr. Anusorn Tonmueanwai, Deputy Director, Dr. Charun Yafa, Assistant Director and 2 NIMT Metrologists attended the 2023 AIRLAB Microsensors Challenge. This event was a part of France-Thailand Year of Innovation 2023. It was honored by H.E. Mr. Jean-Claude Poimboeuf, the Ambassador of France to Thailand and Dr. Chadchart Sittipunt, the Governor of Bangkok to give opening remarks. The program included lectures, a panel discussion and the challenge results and awards ceremony. For the awards ceremony, Mr. Anusorn Tonmueanwai presented the award for the Best accuracy – PM2.5 – Indoor (under €500) and Most accurate multi-pollutant sensor – Indoor (under €500) to the winner – AirGradient ONE from Thailand. Dr. Charun Yafa presented the award for the Outdoor Air – Awareness to the winner – AirGradient Outdoor from Thailand. It was held both onsite at the Alliance Française in Bangkok and online at Airparif headquarter in Paris on 23 November 2023.