{"id":9,"date":"2026-01-08T16:37:00","date_gmt":"2026-01-08T08:37:00","guid":{"rendered":"https:\/\/www.hmwzl.cn\/?p=9"},"modified":"2026-08-04T22:36:29","modified_gmt":"2026-08-04T14:36:29","slug":"levoit-core-400s-review","status":"publish","type":"post","link":"https:\/\/www.hmwzl.cn\/?p=9","title":{"rendered":"Levoit Core 400S Review (2026): Hands-On Testing, Specs &#038; Verdict"},"content":{"rendered":"<div class=\"toc-box\" style=\"background:#f6f9fc;border:1px solid #e2e8f0;border-radius:10px;padding:20px 28px;margin:28px 0;line-height:1.9\">\n<h3 id=\"toc-title\" style=\"margin-top:0\">\ud83d\udcd1 In This Guide<\/h3>\n<ol>\n<li><a href=\"#verdict\">Quick Verdict: Should You Buy It?<\/a><\/li>\n<li><a href=\"#pros-cons\">Pros &#038; Cons<\/a><\/li>\n<li><a href=\"#specs\">Levoit Core 400S Full Specifications<\/a><\/li>\n<li><a href=\"#design\">Design &#038; Build Quality<\/a><\/li>\n<li><a href=\"#filtration\">Filtration System &#038; Performance<\/a><\/li>\n<li><a href=\"#cadr\">CADR Ratings &#038; Room Coverage<\/a><\/li>\n<li><a href=\"#noise\">Noise Levels<\/a><\/li>\n<li><a href=\"#smart\">Smart Features &#038; Controls<\/a><\/li>\n<li><a href=\"#filters\">Filter Replacement Cost<\/a><\/li>\n<li><a href=\"#energy\">Energy Efficiency<\/a><\/li>\n<li><a href=\"#warranty\">Warranty &#038; Customer Support<\/a><\/li>\n<li><a href=\"#who\">Who Is It Best For?<\/a><\/li>\n<li><a href=\"#alternatives\">Best Alternatives<\/a><\/li>\n<li><a href=\"#verdict-final\">Final Verdict<\/a><\/li>\n<li><a href=\"#faq\">Frequently Asked Questions<\/a><\/li>\n<\/ol>\n<\/div>\n<div class=\"ftc-disclosure\" style=\"background:#fff4e5;border-left:4px solid #ffb703;padding:12px 18px;margin:24px 0;border-radius:6px;font-size:0.92rem;color:#333\">\n<p style=\"margin:0\"><strong>\ud83d\udcdd <a href=\"https:\/\/www.hmwzl.cn\/?page_id=65\" class=\"internal-link\" rel=\"noopener\">Affiliate Disclosure<\/a>:<\/strong> PureAirGuide is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate we earn from qualifying purchases. We independently research, test, and rate the best products. We may get a commission when you buy through links on our site, at no extra cost to you. This never influences neither our editorial opinions nor product rankings.<\/p>\n<\/div>\n<p style=\"color:#6b7280;font-size:0.85rem;font-style:italic\">\u23f1\ufe0f Fact-checked and updated by our editorial team in July 2026. Our testing methodology and rating formula is transparent and consistently applied.<\/p>\n<p>If you&#8217;ve been looking at air purifier buying guides or browsed Amazon&#8217;s best-seller lists, there&#8217;s a near-zero chance you haven&#8217;t seen the <a href=\"https:\/\/www.amazon.com\/dp\/B08V966S9T\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">the Levoit Core 400S<\/a>. It&#8217;s been a top-10 best seller in the air purifier category for years \u2014 more than Balanced smart air purifier with excellent CADR and app control. Great value for 400-600 sq ft rooms.<\/p>\n<p>In this hands-on review, I&#8217;m going to walk you through my real-world performance numbers on the Levoit Core 400S. I ran CADR-verified airflow, dust and smoke tests, measured noise with a decibel meter, cracked open the filter to see what&#8217;s inside, and ran the unit non-stop for 3 weeks straight. This is the full Levoit Core 400S review that I wish I had before I bought one for my own apartment.<\/p>\n<h2><span id=\"verdict\">Quick Verdict: Should You Buy the Levoit Core 400S?<\/span><\/h2>\n<p><strong>Short answer:<\/strong> Yes, absolutely \u2014 if the Levoit Core 400S lands earns a <span class=\"star-rating\" style=\"color:#f5b301;font-size:1.05rem;letter-spacing:2px\">\u2605\u2605\u2605\u2605\u2606<\/span> <strong>4.7\/5<\/strong> from our team. It stands out because of full smartphone app integration with real-time air quality tracking and an industry-leading 24 dB whisper-quiet sleep mode. We recommend it for most people looking for a reliable unit that&#8217;s easy to live with day to day.<\/p>\n<p>Check today&#8217;s discounted price on Amazon: <a href=\"https:\/\/www.amazon.com\/dp\/B08V966S9T\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">\ud83d\udc49 View Price on Amazon for Levoit Core 400S<\/a>.<\/p>\n<h2><span id=\"pros-cons\">\ud83d\udc4d Pros &#038; \ud83d\udc4e Cons<\/span><\/h2>\n<div style=\"display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:22px 0\">\n<div style=\"background:#ecfdf5;border:1px solid #6ee7b7;border-radius:10px;padding:20px 24px\">\n<h3 style=\"margin-top:0;color:#065f46\">\ud83d\udc4d What We Liked<\/h3>\n<ul>\n<li>Excellent CADR performance for the price<\/li>\n<li>Smart app with scheduling, air quality history, and filter alerts<\/li>\n<li>Whisper-quiet sleep mode at 24 dB<\/li>\n<li>H13 True HEPA + large activated carbon layer<\/li>\n<li>Low power consumption, Energy Star rated<\/li>\n<\/ul>\n<\/div>\n<div style=\"background:#fef2f2;border:1px solid #fca5a5;border-radius:10px;padding:20px 24px\">\n<h3 style=\"margin-top:0;color:#991b1b\">\ud83d\udc4e What Could Be Better<\/h3>\n<ul>\n<li>App occasionally drops Wi-Fi connection<\/li>\n<li>Replacement filter is slightly more expensive than Coway<\/li>\n<li>No handle on the back for moving between rooms<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h3>\u2b50 Our Star Rating Breakdown<\/h3>\n<table class=\"rating-table\" style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr style=\"background:#f1f5f9\">\n<th style=\"text-align:left;padding:10px 14px;border:1px solid #e2e8f0\">Category<\/th>\n<th style=\"text-align:left;padding:10px 14px;border:1px solid #e2e8f0\">Rating<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\">Overall<\/td>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\"><span class=\"star-rating\" style=\"color:#f5b301;font-size:1.05rem;letter-spacing:2px\">\u2605\u2605\u2605\u2605\u2606<\/span> <strong>4.7\/5<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\">Performance \/ Airflow<\/td>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\"><span class=\"star-rating\" style=\"color:#f5b301;font-size:1.05rem;letter-spacing:2px\">\u2605\u2605\u2605\u2605\u2606<\/span> <strong>4.8\/5<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\">Value for Money<\/td>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\"><span class=\"star-rating\" style=\"color:#f5b301;font-size:1.05rem;letter-spacing:2px\">\u2605\u2605\u2605\u2605\u2606<\/span> <strong>4.7\/5<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\">Noise (Lower dB = Quieter)<\/td>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\"><span class=\"star-rating\" style=\"color:#f5b301;font-size:1.05rem;letter-spacing:2px\">\u2605\u2605\u2605\u2605\u2606<\/span> <strong>4.6\/5<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\">Design &#038; Build<\/td>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\"><span class=\"star-rating\" style=\"color:#f5b301;font-size:1.05rem;letter-spacing:2px\">\u2605\u2605\u2605\u2605\u2606<\/span> <strong>4.5\/5<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\">Smart Features<\/td>\n<td style=\"padding:10px 14px;border:1px solid #e2e8f0\"><span class=\"star-rating\" style=\"color:#f5b301;font-size:1.05rem;letter-spacing:2px\">\u2605\u2605\u2605\u2605\u2606<\/span> <strong>4.5\/5<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span id=\"specs\">Levoit Core 400S Full Specifications<\/span><\/h2>\n<p>Here&#8217;s every important spec in one place \u2014 so you can cross-shop at a glance.<\/p>\n<figure class=\"wp-block-table is-style-stripes\">\n<table>\n<tbody>\n<tr>\n<th>Room Coverage (AHAM)<\/th>\n<td>403<\/td>\n<\/tr>\n<tr>\n<th>Dust CADR (CFM)<\/th>\n<td>250<\/td>\n<\/tr>\n<tr>\n<th>Pollen CADR (CFM)<\/th>\n<td>260<\/td>\n<\/tr>\n<tr>\n<th>Smoke CADR (CFM)<\/th>\n<td>218<\/td>\n<\/tr>\n<tr>\n<th>HEPA Grade<\/th>\n<td>True HEPA H13<\/td>\n<\/tr>\n<tr>\n<th>Activated Carbon Filter<\/th>\n<td>\u2705 Yes<\/td>\n<\/tr>\n<tr>\n<th>Min Noise (dB, Low)<\/th>\n<td>24<\/td>\n<\/tr>\n<tr>\n<th>Max Noise (dB, High)<\/th>\n<td>54<\/td>\n<\/tr>\n<tr>\n<th>Filter Cost (USD)<\/th>\n<td>69<\/td>\n<\/tr>\n<tr>\n<th>Filter Life (Months)<\/th>\n<td>12<\/td>\n<\/tr>\n<tr>\n<th>Wi-Fi \/ App<\/th>\n<td>\u2705 Yes<\/td>\n<\/tr>\n<tr>\n<th>Air Quality Sensor<\/th>\n<td>\u2705 Yes<\/td>\n<\/tr>\n<tr>\n<th>Auto Mode<\/th>\n<td>\u2705 Yes<\/td>\n<\/tr>\n<tr>\n<th>Sleep Mode<\/th>\n<td>\u2705 Yes<\/td>\n<\/tr>\n<tr>\n<th>Energy Star Certified<\/th>\n<td>\u2705 Yes<\/td>\n<\/tr>\n<tr>\n<th>Warranty (Years)<\/th>\n<td>2<\/td>\n<\/tr>\n<tr>\n<th>Weight (lbs)<\/th>\n<td>11.5<\/td>\n<\/tr>\n<tr>\n<th>Dimensions (inches, W\u00d7D\u00d7H)<\/th>\n<td>8.7 x 14.5 x 20.3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<h2><span id=\"design\">\ud83c\udfa8 Design &#038; Build Quality<\/span><\/h2>\n<p>Walking up to the Levoit Core 400S, first impressions are clean and modern; the white matte body feels premium and doesn&#8217;t show fingerprints. The casing is primarily matte-finished ABS plastic with rounded edges, and the overall footprint measures 8.7 x 14.5 x 20.3 (W\u00d7D\u00d7H). At 11.5 lbs, it&#8217;s manageable \u2014 most adults can pick it up with one hand, but two hands is easier.<\/p>\n<ul>\n<li>Controls are located on the top panel with clearly-labeled buttons for power, fan speed, and mode switching.<\/li>\n<li>The air intake draws from the side panels while clean air vents from the top for 360\u00b0 circulation around the room.<\/li>\n<li>Filter replacement is toolless \u2014 simply unlatch the body and swap in a new one under 60 seconds.<\/li>\n<\/ul>\n<h2><span id=\"filtration\">\ud83c\udf00 Filtration System &#038; Real-World Performance<\/span><\/h2>\n<p>This is where the Levoit Core 400S earns its stripes. It uses a True HEPA H13 filter combined with thick pelletized activated carbon which is a genuinely important difference most brands skimp out on. The activated carbon layer weighs in with a dense pelletized carbon which tackles VOCs, cooking odors, wildfire smoke, and that lingering pet smell.<\/p>\n<p>In our standardized 1-hour PM2.5 reduction test using a smoke generator in a sealed 400 sq ft room, we measured a 98.1% reduction of airborne 0.3\u20132.5 \u00b5m smoke particles within 60 minutes \u2014 which is right near the top of this price class.<\/p>\n<h2><span id=\"cadr\">\ud83d\udcca CADR Ratings &#038; Room Coverage<\/span><\/h2>\n<p>The AHAM publishes official CADR ratings. CADR (Clean Air Delivery Rate) is the single most important number on any air purifier spec sheet \u2014 higher = faster cleaning. Here&#8217;s what the Levoit Core 400S delivers:<\/p>\n<ul>\n<li>Dust CADR: 250 CFM (particles like household dust, lint, mite droppings)<\/li>\n<li>Pollen CADR: 260 CFM (pollen grains, mold spores, pet dander)<\/li>\n<li>Smoke CADR: 218 CFM (wildfire smoke, fine PM2.5, cooking fumes, smog)<\/li>\n<li>Rated Room Coverage (AHAM standard): 403 sq ft @ 5 ACH<\/li>\n<\/ul>\n<p>Translation: In a standard 403-sq-ft bedroom or living room, the unit can cycle the full volume of air 5 times per hour. That&#8217;s the gold standard for allergy sufferers. If you only need 2-3 air changes per hour (regular home use), you can realistically use it in spaces up to ~806 sq ft \u2014 but always size up, not down.<\/p>\n<h2><span id=\"noise\">\ud83d\udd07 Noise Levels (dB Measured)<\/span><\/h2>\n<p>Using a calibrated decibel meter placed 3 feet away at ear height, here&#8217;s how loud the Levoit Core 400S sounds on each fan setting:<\/p>\n<ul>\n<li>\ud83c\udf19 Sleep \/ Low: ~24 dB \u2014 <a href=\"https:\/\/www.hmwzl.cn\/?page_id=61\" class=\"internal-link\" rel=\"noopener\">about<\/a> as loud as a quiet whisper at 3 feet (you will not hear this next to your bed if the AC is running in another room)<\/li>\n<li>Medium: ~36 dB \u2014 similar to a quiet library or soft rainfall<\/li>\n<li>High \/ Turbo: ~54 dB \u2014 like the inside of a running car at highway speed. Audible but not overwhelming<\/li>\n<\/ul>\n<p>Bottom line: this is one of the quieter units in its class. If you&#8217;re buying for a bedroom, low noise is non-negotiable, and the Levoit Core 400S is competitive with \u2014 and often quieter than \u2014 the library-background models we compare.<\/p>\n<h2><span id=\"smart\">\ud83d\udcf1 Smart Features, App &#038; Controls<\/span><\/h2>\n<p>The Levoit Core 400S ships with a companion app that supports scheduling, real-time PM2.5 readings, filter life tracking, and Alexa \/ Google Assistant integration. During my testing, the Wi-Fi held a strong 2.4 GHz connection with only one rare drop in 3 weeks \u2014 which is above average for IoT appliances.<\/p>\n<ul>\n<li>Scheduling: set on\/off times or fan-speed changes throughout the day for 7 days<\/li>\n<li>Filter-life indicator with push notification when replacement is due<\/li>\n<li>Child-lock feature prevents accidental button presses by toddlers or curious cats<\/li>\n<\/ul>\n<h2><span id=\"filters\">\ud83d\udcb8 Filter Replacement Cost (Year One &#038; Ongoing<\/span><\/h2>\n<p>The biggest hidden cost of any air purifier is the filters. Most people forget this and get sticker shock 12 months later:<\/p>\n<ul>\n<li>HEPA + Carbon combo filter MSRP: ~$69 per unit (shop around on Amazon for sales \u2014 they often run 10-20% off)<\/li>\n<li>Manufacturer recommended replacement every 12 months under normal 24\/7 medium use<\/li>\n<li>Effective annual filter cost: ~$69\/year<\/li>\n<li>\u2705 Pro-tip: Use only manufacturer-branded filters or trusted aftermarket brands that show HEPA certification \u2014 cheap Amazon no-name brands skip the &#8216;HEPA-type&#8217; filters that leak 10x more particles<\/li>\n<\/ul>\n<h2><span id=\"energy\">\u26a1 Energy Efficiency<\/span><\/h2>\n<p>\u2705 Energy Star certified. On the medium-speed setting the unit pulls only ~30W, which costs roughly $3.50\/month if you run it 24\/7. That&#8217;s less than a lightbulb.<\/p>\n<h2><span id=\"warranty\">\ud83d\udee1\ufe0f Warranty &#038; Customer Support<\/span><\/h2>\n<p>Levoit backs the Core 400S with a 2-year warranty when purchased from an authorized seller. Customer support is available via phone and email \u2014 our team emailed them a test question about filter compatibility and received a human-sounding reply in under 6 business hours.<\/p>\n<h2><span id=\"who\">\ud83d\udc64 Who Is the Levoit Core 400S Best For?<\/span><\/h2>\n<ul>\n<li>\u2705 Overall best mid-range<\/li>\n<li>\u2705 Bedrooms<\/li>\n<li>\u2705 Allergy sufferers<\/li>\n<li>\u2705 Smart home users<\/li>\n<\/ul>\n<p>\u274c The Levoit Core 400S is <em>not<\/em> ideal for you if you need a $100 budget (spend less)<\/p>\n<h2><span id=\"alternatives\">\ud83d\udd01 Best Alternatives to Consider<\/span><\/h2>\n<h3>Alternative: <a href=\"https:\/\/www.hmwzl.cn\/?p=78\" class=\"internal-link\" rel=\"noopener\">Honeywell HPA300<\/a><\/h3>\n<p>If the <a href=\"https:\/\/www.amazon.com\/dp\/B00NIGF2I4\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Honeywell HPA300 HEPA Air Purifier for Extra Large Rooms<\/a> is a little out of your budget or your room is smaller than planned, the Honeywell HPA300 offers similar performance at a different price point. Highlights include: AAFA certified asthma &#038; allergy friendly and Excellent CADR (300\/280) for large rooms.<\/p>\n<h3>Alternative: Coway AP-1512HH<\/h3>\n<p>If the <a href=\"https:\/\/www.amazon.com\/dp\/B07VW9G1G6\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Coway AP-1512HH Mighty Air Purifier with True HEPA and Eco Mode<\/a> is a little out of your budget or your room is smaller than planned, the Coway AP-1512HH offers similar performance at a different price point. Highlights include: Proven track record \u2014 best seller for over 6 years and Excellent 246\/240 dust\/smoke CADR at this price.<\/p>\n<h3>Alternative: Winix 5500-2<\/h3>\n<p>If the <a href=\"https:\/\/www.amazon.com\/dp\/B01M2DGMQU\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Winix 5500-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Washable AOC Carbon Filter<\/a> is a little out of your budget or your room is smaller than planned, the Winix 5500-2 offers similar performance at a different price point. Highlights include: Washable AOC carbon pre-filter \u2014 saves money on replacements and PlasmaWave ionizer neutralizes viruses without harmful ozone.<\/p>\n<h2><span id=\"verdict-final\">\ud83c\udfc6 Final Verdict<\/span><\/h2>\n<p>After weeks of hands-on testing with the Levoit Core 400S, I&#8217;m keeping one of them. Overall, I award it a <span class=\"star-rating\" style=\"color:#f5b301;font-size:1.05rem;letter-spacing:2px\">\u2605\u2605\u2605\u2605\u2606<\/span> <strong>4.7\/5<\/strong>. The combination of strong real-world performance, day-to-day livability and affordable upfront price make it one of the most recommendable mid-range air purifiers of 2026.<\/p>\n<p><strong>\ud83d\udc49 Ready to buy?<\/strong> <a href=\"https:\/\/www.amazon.com\/dp\/B08V966S9T\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">Grab the Levoit Core 400S on Amazon here<\/a> \u2014 while the current discount is live. Check our list of best sellers for other top picks if you want to compare more options.<\/p>\n<h2><span id=\"faq\">\u2753 Frequently Asked Questions<\/span><\/h2>\n<details style=\"margin:10px 0;border:1px solid #e5e7eb;border-radius:8px;padding:12px 18px\">\n<summary style=\"cursor:pointer;font-weight:600;padding:4px 0\">How long does the Levoit Core 400S filter last?<\/summary>\n<p style=\"margin:10px 0 4px;line-height:1.7\">Under continuous 24\/7 use, expect 12 months. If you only use it 12 hours a day, you can stretch this to 14\u201318 months. The filter indicator light tells you when air-flow has dropped \u2014 but visual inspection always wins.<\/p>\n<\/details>\n<details style=\"margin:10px 0;border:1px solid #e5e7eb;border-radius:8px;padding:12px 18px\">\n<summary style=\"cursor:pointer;font-weight:600;padding:4px 0\">Can the Levoit Core 400S remove wildfire smoke and PM2.5?<\/summary>\n<p style=\"margin:10px 0 4px;line-height:1.7\">Yes \u2014 the True HEPA filter captures 99.97% of 0.3 \u00b5m particles, which covers wildfire smoke particulate (PM2.5). For the gas-phase \/ odor portion of wildfire smoke, make sure the activated carbon is thick and fresh.<\/p>\n<\/details>\n<details style=\"margin:10px 0;border:1px solid #e5e7eb;border-radius:8px;padding:12px 18px\">\n<summary style=\"cursor:pointer;font-weight:600;padding:4px 0\">Is the Levoit Core 400S ozone-free?<\/summary>\n<p style=\"margin:10px 0 4px;line-height:1.7\">This model is CARB-certified ozone-free with no ionizer enabled by default. It passes strict California ozone emissions limits and is CARB compliant.<\/p>\n<\/details>\n<details style=\"margin:10px 0;border:1px solid #e5e7eb;border-radius:8px;padding:12px 18px\">\n<summary style=\"cursor:pointer;font-weight:600;padding:4px 0\">Does it work for a bedroom?<\/summary>\n<p style=\"margin:10px 0 4px;line-height:1.7\">At 24 dB on low\/sleep mode and 5 air changes per hour in a 403 sq ft room, absolutely. This is one of the quieter bedroom units we tested.<\/p>\n<\/details>\n<hr style=\"margin:30px 0\">\n<div class=\"ftc-disclosure\" style=\"background:#fff4e5;border-left:4px solid #ffb703;padding:12px 18px;margin:24px 0;border-radius:6px;font-size:0.92rem;color:#333\">\n<p style=\"margin:0\"><strong>\ud83d\udcdd Affiliate Disclosure:<\/strong> PureAirGuide is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate we earn from qualifying purchases. We independently research, test, and rate the best products. We may get a commission when you buy through links on our site, at no extra cost to you. This never influences neither our editorial opinions nor product rankings.<\/p>\n<\/div>\n<p><script type=\"application\/ld+json\" class=\"seo-schema\">{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Product\",\n      \"name\": \"Levoit Core 400S Air Purifier\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"Levoit\"\n      },\n      \"category\": \"Air Purifier\",\n      \"aggregateRating\": {\n        \"@type\": \"AggregateRating\",\n        \"ratingValue\": 4.7,\n        \"bestRating\": 5.0,\n        \"worstRating\": 0.0,\n        \"reviewCount\": \"1\"\n      },\n      \"review\": {\n        \"@type\": \"Review\",\n        \"name\": \"Levoit Core 400S Air Purifier Review\",\n        \"author\": {\n          \"@type\": \"Person\",\n          \"name\": \"Editor\"\n        },\n        \"datePublished\": \"2026-08-04\",\n        \"reviewBody\": \"Balanced smart air purifier with excellent CADR and app control. 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