AirDoctor, LLC v. XIAMENSHANGRENTONGMAOYIYOUXIANGONGSI et al, cacdc:2:2023cv03611

Air purifiers; air purifying apparatus; air purifying units for residential, medical, healthcare, school, hospitality, and business and office use; air filtering units;

Electronic sensors for pollutants and environmental sensors; Sensors for measuring particulates and other air pollutants, not for medical use.;