Nexleaf Black Carbon Filters

Remote Sensor Tools


Los Angeles, US

Nexleaf Black Carbon Filter Analyzer measures black carbon concentration in the air. It uses a quartz fine-grade filter, on which black carbon particulates from air-pumped smoke settle on. Using a special reference card to calibrate for different lighting conditions and camera configurations, a user will snap a picture of the exposed filter using any cell phone camera and send it to the server where it's further processed to determine the concentration of black carbon in the air.

Power source
No power required. Air sampler, complimentary piece of equipment, that is sold separately runs on AC power.
Power life
Not applicable
Real time power level updates
Remote auto-calibration
Sampling Frequency Rates
Max rate (Hz)
As soon as filters get saturated with black carbon (approx. 1 day)
Typical rate (Hz)
As soon as filters get saturated with black carbon (approx. 1 day)
Detection limits
1 μg/cm2 - 25 μg/cm2
Data Submission
As frequent as photographs of filters get sent to the server
Cellular network (3G)
Cellular network (GPRS)
Data Processing Analysis
Backup data storage
Not applicable
Content: Cloud-based data processing & analysis interface