Cellulose Acetate Membrane Filters

Cellulose acetate membranes are very low protein binding with low extractables, and are recommended for applications requiring maximum protein recovery. Naturally hydrophobic, CA contains a wetting agent which may be toxic to some sensitive cell lines. CA is good for filtration of buffers, aqueous reagents and EIA/ELISA reagents and samples. CA is also good for cell culture media and serum used with non-sensitive cell lines.

Pore size quick reference chart

0.65/0.8μm 0.45μm 0.2μm 0.1μm
Analysis of mold, fungi and yeast, stabilization of fermented product, clarification and prefiltration Analysis of bacteria, sterility testing, clarification and prefiltration

Sterilization, sterility testing, “final filtration”


Reduction of mycoplasma, ultracleaning

CA membrane materials reference

Application Material properties Flow rate Throughput Extractables Autoclave Protein binding

Cell Culture media


Molecular biology solutions


(Hydrophilic with
wetting agent)

High Moderate Moderate Yes, wet, liquid cycle High

Select the best CA membrane for your application

To find the membrane you need, select one of the column categories to sort the products. You can also use the search box. The "Select" button will direct you to the product specifications.

No records were found matching your criteria
Catalog # Pore Size Volume Format  
171-0020 0.2μm ≤1mL Syringe Filter Select
722-2520 0.2μm 10mL-1000mL Syringe Filter Select
DS0210-4020 0.2μm ≤1000mL Membrane Filter Disc Select
171-0045 0.45μm ≤1mL Filter Unit Select
DS0210-4045 0.45μm ≤1000mL Filter Unit Select
723-2580 0.8μm 1mL-100mL Syringe Filter Select
724-2080 0.8μm 10mL-100mL Syringe Filter Select