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Kristen Learned
Reviewed in the United States on March 16, 2025
Good Filtration, just be careful not to exert too much pressure or the filter will explode/burst and spray everywhere...
Jay
Reviewed in the United States on August 30, 2024
Sterile, performs well
Sarah
Reviewed in the United States on June 10, 2024
Filtered well when I purchased as a last minute replacement.
karinaJahnke
Reviewed in Mexico on May 15, 2022
RECOMENDADO, A MI ME FUNCIONO BIEN EN EL FILTRADO.
BlackeyeX2
Reviewed in the United States on March 4, 2022
Don't seem to work very well they clog very easy who knows if they're even uniform in the size of filtering they say they do did testing with with the same uniformly turbid water and the other ones with even smaller filterings didn't clog as much as these ones did
Dave Walker
Reviewed in the United States on October 18, 2022
ignore the bad review from a ranting lunatic talking about using them over and over. these work. i tested flour in water and the water came out clear!
Mera
Reviewed in the United States on December 22, 2020
Using this product is non-negotiable. It may at first seem a bit expensive, but the cost is inconsequential next to the benefit. You MUST use these filters - and yes, THESE filters. Sterile PES 0.22 micron variety. Because these not only remove particles, they sterilize the solution.These filters screw onto the end of any standard syringe. 10ml syringes work nicely. The tip is perfect for fitting a needle onto, e.g. a 21 gauge needle fits very snug. This means you can directly filter a syringe full of your solution into another syringe, this secondary one obviously being empty and *unused / sterile!* With a fresh filter, sterile needle, and sterile 2nd syringe, the filtered solution should now be inside a totally sterile environment. The importance of this cannot be overstated.You are going to want to do a preliminary filtration before ever involving one of these filters, though. Whether that's through a cotton filter, or by simply letting all the particles settle and separate out from solution and simply drawing up the top layer of mostly clear liquid into your initial (non sterile) syringe. Either way, you only want to push solutions through with as few particles as possible, because those particles will very quickly clog up the filter and prevent any further filtration. IF THIS HAPPENS - pull back very gently on the syringe, and try again - DO NOT try to force the solution through! You will rip the filter! The filter WILL become clogged eventually, that is the very way it works. Compared to other filters, these can definitely handle a lot more particulate matter before getting completely clogged, but they still can only handle a small amount objectively speaking. Regardless, these filters are supposed to be single use only. You can stretch that to 1 day, but do so at your own risk. After the first use, the bacteria and fungi you filtered out (now stuck inside the filter) will begin to grow and multiply. This is why you do not want to use old filters. They are also more likely to develop micro tears and allow bacteria through the older they get. Again, 1 day absolute maximum - even that long should be done at your own risk. Single use only is the official manufacturer recommendation, but it can get prohibitively expensive depending on how often you need to filter something.The quality control is top knotch on these. Very high quality product that is absolutely indispensable. 11/10
J
Reviewed in the United States on December 21, 2020
Worked well. I pre filter first then use these for final step. Overall I been happy with them and plan on using again. I have used others and these are better quality than most.
Allen B
Reviewed in the United States on June 28, 2019
These filters worked perfect for what I needed. I was looking for a syringe filter to push my liquid products through so they would be contaminate free. I love the individual packaging. Each syringe filter came in a nice rigid package that made me feel comfortable with its sterility. There's nothing worse than buying something listed as sterile and getting a product that has the packaging broken open...not a worry with these. The best part was the price. These were by far the cheapest I could find online. Some places were charging more than double what I paid for these.
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