What the tools themselves collect
Nothing. The water eject, dust cleaner, speaker test, and tone generator sounds are synthesized on your device with the Web Audio API. No audio is recorded, no microphone permission is requested, and your use of the tools sends no tool data to any server.
Analytics and advertising
The site may use standard analytics to count visits and understand which pages help people, and may show ads or affiliate links to fund itself. If analytics or advertising services are active, they may process standard technical data such as IP address, browser type, and pages visited under their own policies, and consent controls will be shown where the law requires them.
Affiliate links, where present, are labeled. Clicking one may set a cookie from the merchant so the referral is attributed; it never changes the price you pay.
Your choices
The tools work with ad blockers and script blockers enabled, and using them that way is fine. For questions about this policy or data requests, use the contact page and the request will be handled directly.