Gary P.
Test results are extensive and…
Test results are extensive and comforting if good. If bad, the information is invaluable. Thank you

Cyclopure is a materials science and environmental engineering firm headquartered in Evanston, Illinois. The company has developed a novel adsorbent (tradename DEXSORB®) with high selectivity for diverse PFAS structures, regardless of chain length, structure, or functional group. DEXSORB is commercialized for multiple PFAS related uses, including (i) environmental monitoring, (ii) household filtration products, and (iii) municipal + industrial treatment systems.
Cyclopure (cyclopure.com) has 527 customer reviews on Five Star Index, with an average rating of 4.7 out of 5.
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Gary P.
Test results are extensive and comforting if good. If bad, the information is invaluable. Thank you
Judy M.
The people at Cyclopure are very helpful, polite and efficient.
iysewing
good turnaround time.
Richard
PFAS testing is new to all of us. Cyclopure customer service answers the phone and gives timely answer to questions. Excellent! Test kits were provided quickly after ordering. After sending back the samples results were provided quickly, faster than they said, in a simple, understandable format. Definitely will test again with Cyclopure.
customer
Fast and reliable
Scott M.
So far so good! I am new to Cyclopure. My local water showed 2 or so ppt of PFAS. I ordered and installed a whole house system as a finishing to my existing whole house system. The system was easy to install and based on the minimal amount of PFAS the system should last longer than the average replacement time of on year based on conversation with the lead engineer. After installing the new system I noticed little or no decrease in whole house water pressure, taste or feel. I am presently performing another test to make sure the system works as expected for PFAS removal. The customer services thus far has been exceptional!
Response from CyclopureNov 3, 2024
Thanks for your review of the Purefast Home 80 Scott! The 80 is a terrific way for homeowners to remove PFAS from their drinking water at point-of-entry. We'd love to see a photo of your install! [email protected]
Catherine
I have to trust that it removes PFAS from my water. So apart from that unknown, I like the program. It is convenient to be subscribed, & all shipments have arrived. My only complaint is that the interval seems just a bit long--my replace filter light goes off before I receive the next filter. I "recondition" it & put it back in, but find I worry a bit about it. And I'm a 1-person household.
Response from CyclopureNov 3, 2024
Hi Catherine, Thank you for your review! Our filters are NSF certified to remove PFAS to non-detect for 65+ gallons and have been rigorously tested. The "replace filter" light on your pitcher is counting the number of times you "tip" the pitcher. Based on generalized CDC analysis, an individual drinks 65 gallons of water in about 2.5 to 3 months. That's probably the best way to know when to change your filter. But your Purefast is working! Thanks for your support of Cyclopure!
Minerva
I love the product and would give it 5 stars. BUT The website does not function properly: I used it to cancel my subscription and then received TWO replacement cartridges! I was charged for both! On Monday I will try to rectify this by phoning the company. Wish me luck!
Response from CyclopureOct 27, 2024
Hi Minerva - Please write to us at [email protected] with your order number and we will most definitely issue a refund. Subscription will be cancelled. We have no record of your request so clearly something is off with the website backend. Will check. Thanks for letting us know and apologies for the headache.