CyclopureCyclopure 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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Kenneth H.
They delivered as they said in a timely fashion. My one complaint is I never received the requested hard copy.
Response from CyclopureNov 11, 2025
Thank you for sharing your experience! We sincerely apologize that your hard copy didn’t arrive as expected. We’ve resent it via USPS and hope it reaches you promptly. We truly appreciate your patience and are glad the rest of your order was delivered on time.
customer
Prompt delivery and quick results receipt
Response from CyclopureNov 11, 2025
Thank you for your feedback! We’re happy to hear your order and results arrived quickly.
Lisa W.
I love that you offer this filter because we have PFAS’s in our water. It’s nice to get them sent automatically every 3 months. Thank you!
Response from CyclopureNov 11, 2025
Thank you for your kind words! We’re so glad our filter is helping you remove PFAS from your water and that the automatic delivery makes things convenient. We appreciate your support!
LAURAMH
Great and much-needed product. On-time delivery.
Response from CyclopureNov 11, 2025
Thank you for your feedback! We’re happy to hear your order arrived on time.
customer
Easy to perform test kit. Interesting method to test water for PFAS by using their filter media to do the capturing/concentration.
Response from CyclopureNov 7, 2025
Thanks for sharing! We’re glad you found the test easy to use and appreciated DEXSORB for PFAS detection.
Gary H.
The process was fast and easy with simple instructions!
Response from CyclopureNov 5, 2025
Thanks for the feedback, Gary! We're glad to hear the process was straightforward and quick.
Lucy
clear instructions, easy procedure, detailed, clear, and speedy results! highly recommended!
Response from CyclopureNov 4, 2025
Thanks for your feedback and recommendation! We appreciate you trusting Cyclopure for your PFAS analysis.
Carolin M.
Easy peasy. Fast turn around. The report takes a bit of work to understand but have to assume folks getting their water tested have some understanding of what to expect.
Response from CyclopureNov 4, 2025
Thanks for sharing! We're happy to hear the process was quick and straightforward, and we appreciate your note about the report.
