ResourceGeneral Lab

The Use of Colorimetric Tubes to Determine Filter Saturation

2 Jul 2017

Carbon filter monitoring is essential to maintain the safety of personnel using fume hoods on a daily basis. Testing filtered air with colorimetric tubes is an inexpensive and effective method for laboratory personnel to monitor the level of filter saturation in real time. This application note presents Purair advanced fume hoods, with an inter-filter test port specifically designed for sampling tubes.

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FiltrationFiltration and microfiltration are used to separate solids, particulates or large molecules from fluids (liquid or gases) in order to purify the filtrate. Explore a range of filter formats, including filter paper, plates and membranes for your separation needs. While larger particulates may be separated by gravity filtration, smaller particulates may require additional force for timely separation. Microfiltration equipment includes vacuum filters, as well as positive pressure, crossflow and centrifugal filtration devices. Find the best filtration products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Fumehoods and Biological Safety CabinetsFume hoods and biological safety cabinets are used to provide personnel, sample and environmental protection by limiting exposure to hazardous materials either by venting or enclosing hazardous sample space. Fume hoods include filtered and ductless fume hoods, general ducted fume hoods, laminar flow cabinets and cabinets for powder weighing. There are three classes of biological safety cabinet, dependent on the level of protection provided. Class I provide personnel and environmental protection, class II provide product, personnel and environmental protection. Class III provide the highest level of protection and are designed for use with high-risk biological agents. Other ventilated workspaces for the laboratory include glove boxes, glove bags, anaerobic and hypoxic workstations. Find the best fume hoods and biological safety cabinets in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Laboratory SafetyLaboratory safety is essential to the effective operation of all laboratories and is required to minimize the risk of harm during experiments. Guidelines, regulations, and equipment should be available in all laboratories to ensure that the working environment is safe and secure.Carbon Filtration