Charles McQuain
Owner and publisher of FilterWorth.
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Charles McQuain owns and publishes FilterWorth. That role covers what the site writes about, what it publishes and the commercial relationships it enters.
FilterWorth makes no claim of laboratory, engineering or public-health credentials, for its publisher or for the publication. Its guides rely on the sources they cite, so you can check the evidence yourself. Read how that works in the editorial policy.
Personally reviewed guides
Guides appear here once they've had a personal review. The current guides were drafted by an AI model and checked against their sources, and each one says so.