SwitzerlandIQAir is a Swiss air quality company known for its high-end air purifiers and the AirVisual line of air quality monitors. Its monitors track PM2.5, CO2 and other metrics and feed a global air quality network and app. IQAir appeals to users who want professional-grade air purification and monitoring data.
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Winix is a South Korean appliance manufacturer founded in 1973 and headquartered in Siheung, best known outside Korea for its air purifiers. Its range pairs a washable pre-filter, an activated carbon layer and a True HEPA filter with the brand's own PlasmaWave ionization stage, which can be switched off. The connected models add Wi-Fi with the Winix Smart app, air quality and light sensors driving Auto and Sleep modes, and support for Amazon Alexa and Google Home.
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