Laboratory filters for precise separation and purification

Laboratory filters are essential for sample preparation, sterilisation, air and liquid purification, and analytical workflows. This category includes membrane filters, syringe filters, vacuum filters and air filtration media suited to research and industrial labs.

Applications and filter types

Choose filter media and pore size according to the application: microbiological sterility, particulate removal, solvent compatibility or gas filtration. Materials such as PTFE, nylon, cellulose acetate and glass fibre have differing chemical and thermal resistances. Filters are specified by porosity, flow rate and retention efficiency.

What to consider when selecting filters

• Pore size: Typical ranges from 0.1 µm for sterilisation to several microns for coarse particulates.
• Material compatibility: Ensure solvent and pH resistance for your samples.
• Format: Syringe, disc, cartridge or depth filters for different workflows.
• Throughput and pressure: Match to your equipment and desired flow rates.
• Quality and traceability: Choose filters with appropriate manufacturing documentation for regulated work.

Maintaining a stock of suitable filters prevents downtime in critical procedures. For labs on a budget, surplus or clearance items can sometimes supply high-quality filters at lower cost, but always verify lot numbers and expiry dates to preserve experiment integrity.