For some applications the small Rheodyne sinter filters (discs with a diameter of 6.4 mm and a thickness of 1.6mm) are a good solution. The advantages of these filters are:

• Very low dead volume
• Nearly no loss in T90 time
• Cheap

These filters can be used with any V&F analyzer equipped with a capillary gas inlet system.

You can order a heated Rheodyne filter unit with the V&F article number 800388.