Whatman Quartz Air Sampling Filter, Grade QM-B, 40 mm circle, 50/pk-CYTIVA 1852-040

QMB can be used in air monitoring applications requiring increased strength or durability. Highpurity Whatman QMB quartz fiber filters from Cytiva's business are designed for use in specific air monitoring applications. QMB filters are similar to Cytiva's standard QMA quartz fiber filters, which are recommended more commonly for air testing applications. By comparison, QMB is approximately twice as heavy, twice as thick, and offers slower flow rates.