Sterile Syringe Filters PVDF 25 mm Diameter 0.22 um Pore Size Individually Packaged 10/pk by Biomed Scientific

These were very easy to use and worked perfectly. The biggest reason I ended up choosing these was because they are sterile. I noticed in some other options for this type of product they were not, although they don't make it obvious, and I feel that you usually assume things of this nature are going to be sterile. It felt like searching for and reading the fine print. Make your own decision as to how that makes you feel if any way at all. Myself, I felt more trusting of these and at the end of the day, my personal reasons for choosing this product aside these just plain worked and they worked wonderfully. I will definitely be purchasing more in the future.

Excelente

I was a little worried about the exit Port not being lure lock but everything worked great and went well no leaking issues or anyting and you can actually see some of the stuff that got filtered out in the filter

like the 0.22 micron variety, these filters fit well and do not leak at the seam like some others. they are good for filtering out large particles and binders in a project where tablets are used before the final sterile filtration. As a sidebar, trying to bypass the 0.45 micron step only yields frustration and usage of many 0.22 micron filters.

Filters worked good but for my use, they may have filtered too good. If you are looking to get the highest level of filtration, these are the ones to use!

These are great sterile syringe filters. They leave you with a sterile clean sample. I am completely satisfied with their performance and I will be purchasing them again. I only wish they sold them in larger quantities. I highly recommend them.

I’m so disappointed and irritated with this company. There’s definitely a quality issue. I’ve purchased these filters from just about every single vendor on Amazon. I just opened up the second package of my 2 lot order from this company and 3 of the filters were totally blocked after passing only 1-2 ml of media through them. Another filter allowed the liquid to push fairly simply, but the filter definitely was not filtering. The ending product appeared cloudy and had particulate still. Of the remaining 6, two functioned properly and the other four I've not tested. I don’t know what the problem is. I’ve used this company before with no issue and the media I’m using is the exact same. I sent a message but it’s been over 3 business days and I still have no result. I don’t have money to waste. These filters can be pricey and I’m just very frustrated.

So ive used these before, no issue, same viscosity and chemicals used. This batch they were all clogged. But if youre in pinch like me and need to make it work. If you push on the syringe for like 5 minutes(careful not to break the filter) it will eventually filter. Not sure what the issue is but I got one of them to work so far. Im curious if its filtering more or less than the lass batch lol.