Syringe filter
（重定向自Wheel filter）
![A 0.2 micrometre luer lock syringe filter that is not a](/Images/godic/202502/20/Luerlock_syringefilter2108.jpg")
A syringe filter (sometimes called a wheel filter if it has a wheel-like shape) is a single-use filter cartridge. It is attached to the end of a syringe for use. Syringe filters may have Luer lock fittings, though not universally so. The use of a needle is optional; where desired it may be fitted to the end of the syringe filter.