If you notice a strange smell when using F1 with the air purifier.
It's most likely caused by a faulty cartridge or incorrect installation.
Long-term use or leaving the cartridge in a humid environment can cause it to fail.
If the cartridge is faulty, it needs to be replaced.
The air inlet of the purifier is supposed to be connected to the air outlet of F1.
If else, it may cause the smoke to go back into F1. Please make sure the connection is correct.
At one edge of the top cover, there is a sticker indicating the direction.
Make sure the sicker faces the back side of the purifier where the inlets and outlets are located.
We hope this guide is helpful. And we'd love to hear what you think.
If you have any questions, please contact us at: support@xtool.com
Copyright © 2025 xTool All Rights Reserved.