1—Gas inlet.

2—Converter.

3—Gas dusting sensors.

4—Filter sample holder.

5—Master filter.

6—Differential pressure gauge 1.

7—Vacuum pump (low speed).

8—Vacuum pressure (high speed).

9—Air compressor.

10—Gas outlet.

11—Dust feed inlet.

12—Gases source.

13—flexible joint.

14—Differential pressure gauge 2.