PTFE membranes and their ability to stop aqueous aerosols. Usual pore sizes are 0.2 µm and 0.5 µm. Sterile venting of vacuum manifolds, fermentation vessels, and sterile filtrate tanks and containers utilize PTFE 0.2 µm membranes. WTP and TE membrane ranges WTP membranes
vent recovery after extractio n is a critical fa ctor for the feas i- 0.2-μ m PTFE filters (Restek 13 mm syringe filter). ... centration in th e culture medi um decreased to 0% of th e initial.
In-Line Filters. Disposable, multipurpose in-line filters are designed for the purpose of small-volume venting of solvents and for gas filtration. PTFE membrane and polypropylene housing have broad chemical compatibility. In-line filters can be used to help protect against bloodborne pathogens. They are useful for benchtop fermentors, in-line
Our filters are used for applications requiring 0.2 micron sterilization of air, gas, solvents and chemicals in life science industries. Validated PTFE Membrane Our LifeASSURE™ PFS series PTFE Filters use a hydrophobic polytetrafluoroethylene (PTFE) membrane, which helps minimize pore blockage from moisture in vent applications.
Our LifeASSURE™ PFS series PTFE Filter Cartridges use a hydrophobic polytetrafluoroethylene (PTFE) membrane, which helps minimize pore blockage from moisture in vent applications. Our filters are validated by a liquid bacterial challenge for complete retention based on the ASTM standard, which provides a high level of reliable sterilizing
Restek’s passive air sampling kit incorporates all the hardware necessary to collect air samples and is easy to assemble for field sampling.* Kit includes flow controller, critical orifice, 2 µm frit filter, vacuum gauge, and sample inlet.
Whatman PolyVENT venting filter. Draining or filling of incubators, fermentation tanks, and other vessels requires a venting filter capable of preventing bacterial contamination. With an integral PTFE filter membrane, Whatman PolyVENT acts as an industrial air filter media for sterilization* of gases entering bioreactors such as fermentation tanks.
RESTEK 25897 filter vial, 0.2um, PES, Pack of 100. Recommended for samples containing less than 10 percent solid particulates. Easy-to-use vials offer fast sample filtration and require only a squeeze of your fingers. Minimize sample loss by eliminating multiple transfers
Membrane Filters. Membrane filters serve as effective physical barriers that remove solids, viruses, bacteria, and other unwanted molecules. Specialized types are designed for softening, disinfecting, organic removal processing, and water desalination. The filters can be installed in compact, automated, or modular units.
The non-sterile vent filters feature a polypropylene housing with a 0.2 µm hydrophobic PTFE membrane—ideal for maintaining purified water storage in carboys or for sterile venting during a slow exhaust/liquid autoclave cycle of EZgrip™ carboys. They can withstand up to 10 autoclave cycles, feature a stepped hose barb, and are available in
Minisart ® PES with hydrophobic polyethersulfone (PES) is suitable for venting or filtration of gases and air. Type 1757G with a pore size of 0.2 µm can be used for sterile filtration and has a hose barb inlet and outlet. Version Q is a non-sterile bulk pack. Units can be sterilized by gamma irradiation, autoclaving or EO. Price: $955.00.
Manufacturer: Pall 4251. Disposable filters are 0.2 micron rated and contain a Pall hydrophobic PTFE membrane and are ideal for the sterile venting of small containers and as an in-line gas filter. The large effective filter area provides high flow rates and filters can be autoclaved several times ensuring low costs.
The Midisart® filter family is the clear choice for small scale sterile air/gas filtration applications. Sartorius offers two Midisart® variants that perfectly match all requirements: Midisart® 2000. The most popular. Reliable performance since decades. Hydrophobic PTFE membrane; Liquid bacteria challenge test; Autoclaving (max. 60 cycles)
The 0.5 μm pore size is normally used. Air and gas filtration use the hydrophobic characteristics of PTFE membranes and their ability to stop aqueous aerosols. Usual pore sizes are 0.2 μm and 0.5 μm. Venting of vacuum manifolds, fermentation vessels, and sterile filtrate tanks and containers utilize PTFE 0.2 μm membranes.
