Editorial policy

Why we publish guides

CEAROX sells a ceiling-integrated air purification system. That gives us an obvious commercial interest — and it is exactly why our guides are written so that any claim, ours included, can be checked. Each guide explains the underlying principle, gives the formula or the standard behind it, and states the conditions under which a number holds. Where the honest answer is "it depends on your room", we say so instead of implying a universal result.

How a guide is produced

1. Question first. Each guide answers a question a buyer or specifier actually asks, and begins with a short answer at the top so nobody has to read 1,500 words to get the point.
2. Sources. Technical statements are based on published standards (for example EN 1822, ISO 29463, ANSI/AHAM AC-1) and guidance from public bodies such as the U.S. EPA, the World Health Organization and the California Air Resources Board. Sources are listed at the end of each guide.
3. Numbers are shown, not asserted. Where we present a calculation, we give the formula and the inputs so readers can reproduce it.
4. Review. Drafts are reviewed by the CEAROX engineering team for technical accuracy, and checked against current product documentation where a guide mentions our own system.
5. Tools. Software tools, including AI writing assistants, may be used while drafting. They do not replace the review step above; no guide is published without a human check of its technical statements.

Separating education from marketing

Guides are written to be useful to someone who buys a competitor's product. Where our own system is relevant we say so in a clearly marked section, usually titled "How this applies to CEAROX", and we keep product claims to what our documentation supports. We do not publish comparisons designed to make other manufacturers look bad, and we do not use guides to claim performance figures that the product documentation does not contain.

Advertising

This website carries third-party advertising through Google AdSense. Advertisers do not influence what we write, and no guide is created in exchange for payment. Advertising is placed so that it is visually distinguishable from editorial content and does not interrupt a guide in a way that could be mistaken for our own recommendation. Pages whose purpose is navigation, contact, error handling or legal information are not treated as content inventory for advertising.

Health and safety boundaries

Our content is educational. It does not replace medical advice, occupational-health assessment, building engineering or professional remediation. We do not make health claims for air purification, and we describe the evidence for symptom improvement as the cited sources describe it — including where results are mixed. See our disclaimer.

Dates, updates and corrections

Each guide shows its publication date and, where it has been revised, the date of the last update. We revise content when a standard changes, when guidance from a public body is updated, or when a reader points out an error. Material corrections — anything that changes the meaning of a recommendation or a technical statement — are made promptly and the update date is changed. Minor copy edits do not change the update date.

To report an error, email office@cearox.com with the page address and the statement in question. We check every report and reply.

Use of our content

Our guides, diagrams and calculators are original work produced for this website. We do not copy text from other publishers. If you would like to quote or reference a guide, a short quotation with a link to the source page is welcome; republishing whole guides is not permitted — see our terms of use.