I personally vetted and/or use these products for myself and my family.
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Bath & Shower Filters
Note: This filter is not NSF certified. It was independently tested by the Ningbo Academy of Product and Food Quality Inspection and shown to reduce chlorine (97.5%), bacteria (99%), and heavy metals like lead, mercury, arsenic, and chromium by over 99.9%, but it has not been tested or certified for PFAS removal or NSF standards.
AquaBliss Shower Filter (SF 500)
Note: This filter is not NSF certified. It was independently tested by QFT Laboratory and shown to remove over 99% of many pesticides, VOCs, pharmaceutical residues, and PFAS chemicals (PFOA and PFOS), along with a 95% reduction in chlorine and a 99.5% reduction in E. coli—but it showed little to no reduction in fluoride, chloride, or nitrates.
Note: The Weddell Duo shower filter has been extensively third-party tested and NSF-certified to remove ≥87–99% of free chlorine (NSF 177), ≥96–100% of particulates (NSF 42), and at least 99% of PFAS (NSF 53) under challenging flow conditions.