An Air Purifier Has to Fit the Room—and the Routine

We used Amazon US air-purifier search results sorted by Best Sellers only to find candidates, then screened out tiny desktop units, unrelated product types and weak or mismatched offers. Levoit Vital 200S-P White and Winix 5510 Polished Charcoal Gray are different manufacturers' purifiers with nearly equal verified smoke CADR. We checked each exact option, ASIN, new offer, stock, seller, purchase controls and Prime delivery. The Levoit listing showed 10K+ bought in the past month with 15,222 global ratings; the Winix detail page showed 5K+ and 32,254. These are listing-level transaction signals, not a market share or national popularity ranking; rating counts can pool variants. The selected offers were sold and shipped by Amazon.com.

• Confirm ASIN B0BGPF71Q6 in Vital 200S-P White or B0DJG1731C in 5510 Polished Charcoal Gray, and verify the new Amazon.com offer and local Prime promise at checkout.
• Size the purifier using 388 or 392 sq ft at 4.8 air changes per hour, not the one-hour marketing area.
• Check floor width and cabinet height near outlets, furniture and curtains; allow room for intake and filter access.
• Decide whether a U-shaped pet-hair inlet and VeSync schedules or a narrower body and automatic dark-room mode will be more useful.
• Plan genuine replacements: Levoit Vital 200S standard filter or Winix Filter Q 1712-0123-00; check current price and manufacturer interval.
• Treat global ratings and recent-purchase labels as listing signals that can change or include variants, not a direct performance test.
• Keep proof of purchase for each manufacturer's two-year warranty terms.