Black Carbon Filter Analysis

Nexleaf has engineered a low-cost alternative to expensive Black Carbon (BC) measuring instruments.

1. Exposed Filter + Ref Card

The loaded filter is placed on our specially designed reference card.


2. Take a photo

A picture is captured of the card, even with a simple cellphone camera.


3. Submit for Results

The picture is sent to Nexleaf through this web site or by email.

    • This method works with your own air quality-sampling pump.
    • Our analytic algorithm optically determines the concentration of BC loaded on the filter.
    • Results are available through this website and as a download.

To get started or to learn more, click on the "How-to" link above.