PTFE Filter(TFH® membrane)

New construction resolves many of the problems associated with the demanding usage environment for PM sampling filters

• Combines the excellent collection ability of a PTFE filter with a breathable reinforcing layer of non-woven fabric.

• Reduces absorbency and conductivity and also prevents post- collection dispersal of samples.

• Ensures superior release performance of the PM after collection (effective in micro-chemical analysis of composition).

• Allows smaller filter unit weights than with the standard glass fiber paper used in automatic PM measurement devices (β-ray absorption method). This has improved detection sensitivity by approximately five times compared to previous HORIBA units.

• Strengthens chemical resistance to acids, alkalis, and organic solvents.

• Decreases filter weight and also allows accurate weight measurement of low-concentration samples.

• Greatly lowers the chemical background, eliminating interference and allowing chemical analysis of composition (water-soluble components, organic compounds, metal components, etc). Patent pending

• PM collection
(β-ray adsorption method automatic measurement devices, all sampling procedures)

• PM composition analysis

• Weight measurement of low-concentration powders

PTFE membrane


PE/PET backing