PURPLEAIR

Electric or electronic sensors for pollutants and environmental sensors; Sensors for measuring particulates, smoke, dust, ozone, voc's and other air pollutants, not for medical use

Mapping services related to display of air quality and environmental data, namely, meaning smoky, dust and other air particulates; Providing an on-line computer database in the field of air quality and environmental data, namely, measuring smoke, dust and other particulate air pollution