Xiaomi S40 vs H40: Noise levels are nearly identical
Both run at 55-60 dB on standard mode, like a conversation hum. The S40 gets slightly louder at max suction, but the difference is negligible for your buying decision.
Both run at 55-60 dB on standard mode, like a conversation hum. The S40 gets slightly louder at max suction, but the difference is negligible for your buying decision.