Convert Obscuration to dB Attenuation with our Smoke Density Conversion Table

Obscuration Table 01

Occasionally we are asked about converting between various smoke density measurement systems. This information is very hard to find.

However, it is available from this website. Our downloadable conversion table provides Optical Density, % Obscuration, and dB Attenuation for light transmission values from zero to 100%.

Click Here to Download the Obscuration Table