Air quality sensors sold as an integral component of an HVAC system; Air filtering technology for use in HVAC systems, being bipolar cold plasma ionizers; air filtering installations, namely, pathogen eradicators, and Dedicated Outdoor Air Systems (DOAS); light installations, namely, UV-C lights for destroying pathogens and bacteria

'air':1,13,26,35 'bacteria':49 'bipolar':22 'c':43 'cold':23 'compon':8 'dedic':33 'destroy':46 'doa':37 'erad':31 'filter':14,27 'hvac':11,19 'instal':28,39 'integr':7 'ioniz':25 'light':38,44 'name':29,40 'outdoor':34 'pathogen':30,47 'plasma':24 'qualiti':2 'sensor':3 'sold':4 'system':12,20,36 'technolog':15 'use':17 'uv':42 'uv-c':41

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