ThailandAirGradient builds open-source indoor and outdoor air quality monitors that track PM2.5, CO2, temperature, humidity and other pollutants. The company is known for its open hardware and firmware, letting users build, repair and integrate the monitors with platforms like Home Assistant and its own dashboard. AirGradient appeals to people who want transparent, data-driven air quality monitoring rather than a closed black box.
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ChinaNarwal is a Chinese robotics company that specialises in floor cleaning, best known for pioneering robot vacuums that wash and dry their own mop pads at the base station. Its catalog spans the Freo and Flow series of robot vacuum and mop combos plus cordless wet dry vacuums, all set up and controlled through the Narwal Freo app. The company says its products are sold in more than 30 countries and are backed by over 800 patents, and its robots work with Amazon Alexa and Google Home voice control.
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