This policy describes how Water Filter Compass intends to prepare and maintain its research-based reviews and buying guides.
Research and sources
We prioritize product manuals, manufacturer specifications, published performance documentation, and relevant certification listings. We aim to distinguish manufacturer statements from independently verified information and link to sources readers can inspect.
Testing and experience
Unless an article explicitly describes testing we performed, it is a research-based review. We do not present generated illustrations as photographs of our own testing, invent measurements, or imply professional qualifications.
Product recommendations
We aim to explain who a product may suit, where it has limitations, and which costs or requirements need checking. Prices, availability, specifications, and replacement costs can change, so readers should confirm current details before buying.
Affiliate relationships
We may earn commissions from qualifying purchases through affiliate links. We aim to make those relationships clear and explain our reasoning for any recommendation.
Corrections and updates
When a material error is identified, our policy is to correct it and revisit recommendations affected by it. Publication or update dates should reflect actual work on the article.