tldr; Mid-size sweet spot. 403 CADR, 990 sq ft, VeSync smart. Best value for medium rooms.
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Best praise vs top criticism for Levoit Core 400S
“It’s cheapest to just smoke outside. Aside from that, I got the levoit 400s (for non smoking reasons) and have been pleased with it. Also got two levoit 200s and those are great also. Not sure if you’re budget but they’re fairly priced. I’m sure there’s better options but that’s what I have and I’m pleased”
“Levoit 400s filters always have a sweet musky smell to them when on high. Idk it’s weird. Not terrible but weird. I leave it on setting 1 or 2. But no like “chemical smell”.”
119 Reddit opinions analyzed • Last updated 2/24/2026