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feat: Add LUH-N451S-WUS to OasisMist 4.5L humidifier map - #556

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@parkerbk parkerbk commented Oct 9, 2026 •

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Feat: Add LUH-N451S-WUS to OasisMist 4.5L humidifier map

The LUH-N451S-WUS is a newer US revision of the Levoit OasisMist 4.5L humidifier. VeSync reports it with device type LUH-N451S-WUS, which is not in the device map, so get_device_config returns None and the device is skipped. This also means it does not appear in Home Assistant's VeSync integration.

It uses the same bypass API and payloads as the LUH-O451S-WUS (auto, sleep, manual and humidity modes, 9 mist levels, 3 warm mist levels). I have been running it this way in a Homebridge plugin that treats both as the same device family.

Change: add LUH-N451S-WUS to the existing OasisMist 4.5L HumidifierMap entry. No new class or API changes.

Testing: pytest src/tests/test_humidifiers.py passes (133 passed, 2 skipped). Confirmed get_device_config('LUH-N451S-WUS') now resolves to VeSyncHumid200300S / OasisMist 4.5L.

🤖 Generated with Claude Code

https://claude.ai/code/session_01K6EUpiEwavh4in3wrqEqic

The LUH-N451S-WUS is a newer US revision of the OasisMist 4.5L. It uses
the same API as the LUH-O451S-WUS, but its device type is not listed, so
the device is skipped during device list parsing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01K6EUpiEwavh4in3wrqEqic
@parkerbk parkerbk changed the title Add LUH-N451S-WUS to OasisMist 4.5L humidifier map feat: Add LUH-N451S-WUS to OasisMist 4.5L humidifier map Oct 9, 2026

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