About this site

Who runs Best Aroma Diffuser

This site is published by Scentech V.O.F., a partnership registered in the Netherlands at Buitenhaven 65, 5211 TR 's-Hertogenbosch, Chamber of Commerce number 95312048, VAT number NL867082719B01. Scentech makes and sells the Smart Aroma Diffuser, the Smart Aroma Diffuser 2 and the Smart Aroma Diffuser Pro — the two devices that come first and second in our ranking. There is no third party between us and them, because there is no third party at all.

That is an unusual arrangement for a comparison site, so it is stated at the top of every page and in the footer: this is an advertisement feature. Orders placed at getscentech.com through a link here are attributed to this site, so the ranking and the scores are not independent, and we do not describe them as such anywhere.

Why a manufacturer writes a buying guide

Because the questions people ask before buying a diffuser are answerable. How many square metres does one actually cover? How loud is it? What does a month of scent cost once the first bottle runs out? Those figures either exist on a manufacturer's specification table or they do not, and where they do not, saying so is more useful than filling the gap with an adjective.

So we write the guide we would want to read, with three self-imposed limits. Every number comes from a manufacturer's specification table, a retailer's product page or a public review platform, and carries the date it was read. Every product in the ranking, ours included, gets at least two real drawbacks. And where a figure is missing — coverage, noise, cost per hour — the entry says "not stated" instead of guessing.

How the ranking is made

Each model is scored out of ten against six weighted criteria: stated coverage, noise, the cost of scent per month, control, maintenance and the size of the public review base. The weights, the sources and the things we deliberately did not do are set out in full on How we compare. We ran no laboratory test, took no measurements of our own and had none of the competing devices in the house; where a competitor's page carries a customer review, we quote it verbatim, dated and attributed, including the critical ones.

Prices for the Scentech products are shown in pounds because the shop converts its euro prices at checkout. They move with the exchange rate, so each one carries the month it was read rather than being presented as a fixed UK price.

Getting in touch

Corrections are welcome, especially about a price or a rating that has moved since we last checked. Email support@scentech.store or use the details on the contact page. If you think something on this site is wrong or unclear, tell us and we will change it and note the change in the update log on the method page.