Whatman™ QM-H is a pure quartz fibre filter for use in testing acidic gases, stacks, flues and aerosols. It has low heavy metal content so it is well suited for heavy metals analysis.

• High stability up to 900 °C
• High filtration efficiency
• Binder-free
• Minimal reactivity with biological or chemical components

Pure quartz fiber filters come in 50-piece packs with five diameters: 37 mm, 47 mm, 50 mm, 90 mm, 150 mm.