Measurement

Device or Sensor

Data Observations

Units of

Measurement

Particle Count

PMS, Particle Counter

Raw particle count mode of sensor. Helps determine aerosol dispersion and effectiveness of mitigations during a testa

Particle counts per sample rate

Particle Concentration

PMS, Particle Counter

Concentration mode of the sensor. Used for general air quality monitoringa

Count per ft3 or L, PM2.5, PM10

Airflow

Anemometer

Air velocity, temperature. Used to characterize the speed and directionality of airflow at various locationsb

m/s, FPM, ˚C, ˚F

Differential Pressure

Manometer

Compares the pressure between two sampling locations for HVAC balancing or healthcare negative pressure isolation roomsc

Psi, mbar, or mmH2O

Regional Air Quality

Weather/IAQ smartphone app

Gives region air quality data, pollen, and other pollutants

PM2.5, PM10, O3, NO2, SO2, CO