All in all, the Huawei scored worse than the Egg, Node, and Dylos. However, the correlation with official PM2.5 was high, and it’s certainly good enough to tell you if the air you’re breathing is toxic or safe. The Huawei is sufficiently accurate to:
1. Test whether a purifier is making your room air cleaner.
2. Tell whether your air is in the good range or unhealthy range.
Click here to read more on the original test: https://smartairfilters.com/en/blog/huawei-air-quality-monitor-test/