A comparison is only as trustworthy as its model matching and source discipline. Retail listings can merge colors, generations, bundles, and reviews, while manufacturer pages can change without notice.
Water Flosser Field Guide uses a documented verification process before a specification or evidence statement appears in a public guide.
1. Start with the exact product identity
We record the brand, full model number, product-family name, region, power requirements, and official manufacturer URL. A claim attached to the WP-660 is not automatically applied to every Aquarius variant, and an HX3711/20 package is not assumed to match another Philips configuration.
If a retailer combines products or the model number is unclear, we do not use that listing as the specification source.
2. Separate facts, manufacturer claims, and interpretation
Published dimensions, settings, capacity, included accessories, power, and warranty are recorded as manufacturer specifications. Marketing or efficacy language remains attributed to its publisher and keeps any study qualification beside it.
Our statements about fit are labeled as editorial interpretation. For example, a smaller tank may create refill friction, but we do not claim that every user will need a refill.
- Specification: a value printed on the exact official product page.
- Evidence claim: a statement tied to a study, acceptance record, or evidence review.
- Editorial inference: a practical consequence explained without pretending it was laboratory-tested.
3. Apply health-claim safeguards
We use ADA guidance for general oral-health context and exact ADA records for product-specific Seal statements. We do not turn a product claim into a diagnosis, treatment recommendation, cure, or guarantee.
The ADA's category-wide evidence summary describes oral-irrigator evidence as limited and inconsistent. We keep that uncertainty visible even when an exact product has an acceptance record.
4. Recheck before release and after changes
Every article is checked against an approved claim register, known offer list, publication queue, and allowed primary-source domains. Broken or changed sources pause the affected statement until it is verified.
We publish the verification date, preserve commercial disclosures, and do not let a future commission rate decide whether a product is included. If hands-on testing is absent, the guide says so plainly.
- Exact model and source match.
- Qualification stays next to the claim.
- Links, dates, disclosures, and article records agree.
- No unsupported medical or testimonial language.
SOURCES & SCOPE
Trace every factual edge.
Product specifications are manufacturer statements unless explicitly labeled otherwise. General oral-health context comes from the ADA. This page provides general information, not individualized dental advice.
- American Dental Association — Dental Floss/Interdental Cleaners evidence summary
- Waterpik — Waterpik water flosser catalog
- Philips Sonicare — Philips Power Flosser range
Registered claims used on this page
ada-evidence-limits— Do not imply that all water flossers, techniques, or users will have the same outcome.wp660-core-specs— Attribute these specifications to Waterpik and recheck the official model page before publication.wp580-core-specs— Attribute these specifications to Waterpik and recheck the official model page before publication.philips-core-specs— Attribute these specifications to Philips and recheck the official US model page before publication.