Levoit Core 600S

The Levoit Core 600S is a top-tier value performer for large rooms up to 635 sq ft. It uses a comprehensive 3-stage filtration system with a True HEPA filter and high-efficiency activated carbon. Its smart features are robust, including VeSync app control, compatibility with Alexa and Google Assistant, an auto mode linked to a built-in laser dust sensor, and a quiet sleep mode with a display-off option. Targeted at budget-conscious buyers needing large-space coverage, it's a mid-priced workhorse.

It scores well for offering premium smart features and high CADR at a competitive price point, backed by strong user satisfaction.