0
$\begingroup$

In terms of very fine particle filters (pore sizes at about 0.2 micron), there seem to be some filters marketed/labeled to be for "air" (hence gases) and others for syringes (hence liquids)

To a layman as myself it is hard to see at a glance the necessary difference. What are those differencs?

One potential difference I have spoted so far is that as it was stated on http://omicronscientific.com/ the "air vent filter" is hydrophob, which I guess would make it impracticle for being used as liquid filter, when used with certain liquids.

There are filters used for gases

$\endgroup$
  • $\begingroup$ Beside wetability, being hydrophop or hydryophil, a liquid medium supposed to pass through the filter may differ quite a bit in terms of cohesion, compressibilty, and surface tension. As practical (?) example, imagine, your handkerchief wouldn't need to accomodate so much air (when honking), but -- with same velocity -- water: it had to be made of stronger material. In addition, syringe filters for liquids I know are designed either for pull, or push. $\endgroup$ – Buttonwood Feb 11 at 20:06

Your Answer

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Browse other questions tagged or ask your own question.