What filter should I use for organic solvents?
The short answer: PTFE for aggressive or broad-spectrum solvent compatibility; nylon for many common alcohols and mild organics at lower cost.
Quick answer
PTFE has the broadest organic solvent compatibility of the common membrane materials, including aggressive and less common solvents. Nylon handles many alcohols and mild organic solvents at a lower cost, but has a narrower range than PTFE and can bind certain polar compounds.
Confirm compatibility for your specific solvent
"Organic solvents" covers a huge range of chemistry—what's compatible with acetone isn't necessarily compatible with a chlorinated solvent. Confirm against your exact solvent, not just the general category.
Don't forget the housing
A chemically incompatible housing can fail even with a compatible membrane inside. See our housing materials guide.
Full comparison: Nylon vs. PTFE syringe filters.
Need a more specific recommendation?
Tell us your exact sample and instrument, and we'll confirm the right spec.