Privacy policy

What we collect

The duct calculator requires no account and no sign-in. The values you enter are processed in your browser and are never sent to us or stored on a server.

We measure aggregate usage with Plausible Analytics, which is cookieless and stores no personal data and no cross-site identifiers. It records page views and a few anonymous product events, such as which formula was used, so we can see which parts of the calculator are useful.

Cookies

We set no advertising or tracking cookies. Your chosen language is remembered in your browser's local storage on your own device, so the site opens in the right language next time. You can clear it at any time through your browser settings.

Your rights

Because we do not collect personal data through this calculator, there is normally nothing for us to look up, correct or delete. If you have contacted Gram Clean Air by other means and want to know what we hold, or want it deleted, write to us and we will respond.

Data controller

Gram Clean Air A/S, Lysbjergvej 10, Hammelev, DK-6500 Vojens, Denmark. CVR-nr. DK 36 83 18 12.