{ "schema": "benchpicked_consumer_research_export.v1", "route": "/air-quality/levoit-core-400s/", "product_id": "levoit-core-400s", "revision": "2026-10-11.core400s.local.2", "page_content_hash": "429fc03e7d84f3e5c3f3032d736994c735983683d4475d556c532c8b36ce6064", "market": "US", "currency": "USD", "is_benchpicked_measurement": false, "reader_task": "Compare 300S/400S evidence; check US room/spare fit and running costs.", "freshness": "maintenance_due", "freshness_assessed_at": "2026-11-04T01:23:50.235Z", "facts": [ { "attribute": "reported_cadr", "condition": "US listing: pollutant/speed unspecified. Not smoke CADR or quiet-speed delivery.", "id": "c-cadr", "locator": "Specifications: CADR", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-listing", "state": "documented", "unit": "CFM", "value": 231, "source_url": "https://levoit.com/products/core-400s-p-smart-air-purifier", "source_type": "manufacturer", "checked_at": "2026-10-11T11:43:33.105Z", "maintenance_due": false }, { "attribute": "smoke_cadr", "condition": "Current SKU smoke value unestablished; AHAM returned a shell, not its certificate.", "id": "c-smoke", "locator": "Specifications / missing exact certificate", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-listing", "state": "extraction_pending", "unit": "CFM", "value": null, "source_url": "https://levoit.com/products/core-400s-p-smart-air-purifier", "source_type": "manufacturer", "checked_at": "2026-10-11T11:43:33.105Z", "maintenance_due": false }, { "attribute": "rated_room", "condition": "4.8 ACH claim; ceiling/layout and per-speed delivery unestablished.", "id": "c-room", "locator": "Specifications: Ideal Room Size", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-listing", "state": "documented", "unit": "sq ft", "value": 358, "source_url": "https://levoit.com/products/core-400s-p-smart-air-purifier", "source_type": "manufacturer", "checked_at": "2026-10-11T11:43:33.105Z", "maintenance_due": false }, { "attribute": "rated_room", "condition": "1 ACH claim, not equivalent to 358 sq ft at 4.8 ACH.", "id": "c-area", "locator": "Specifications: Ideal Room Size", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-listing", "state": "documented", "unit": "sq ft", "value": 1718, "source_url": "https://levoit.com/products/core-400s-p-smart-air-purifier", "source_type": "manufacturer", "checked_at": "2026-10-11T11:43:33.105Z", "maintenance_due": false }, { "attribute": "rated_power", "condition": "US AC120V/60Hz rating, also in current listing; not measured consumption.", "id": "c-rated", "locator": "PDF page 2: Specifications", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-manual", "state": "documented", "unit": "W", "value": 38, "source_url": "https://levoit.com/cdn/shop/files/HEAPAPLVSUS0162Y_0072B_0102B_0102C_Core_400S-P_Smart_Air_Purifier_manual_US_A1-241202.pdf?v=10045282693949465458", "source_type": "manufacturer_manual", "checked_at": "2026-10-11T11:45:34.104Z", "maintenance_due": false }, { "attribute": "third_party_specimen_power", "condition": "Publisher Core 400S specimen at Turbo, not current 400S-P rating or CADR.", "id": "c-turbo", "locator": "Power Usage table: Turbo Mode", "market": "US", "max_age_days": 365, "model": "levoit-core-400s", "source_id": "400-apf", "state": "documented", "unit": "W", "value": 35, "source_url": "https://www.airpurifierfirst.com/comparison/levoit-core-300s-vs-levoit-core-400s/", "source_type": "third_party_test", "checked_at": "2026-10-11T08:14:20.730Z", "maintenance_due": false }, { "attribute": "third_party_specimen_power", "condition": "Publisher Core 400S Sleep specimen; no matched CADR, not maximum airflow.", "id": "c-sleep", "locator": "Power Usage table: Sleep Mode", "market": "US", "max_age_days": 365, "model": "levoit-core-400s", "source_id": "400-apf", "state": "documented", "unit": "W", "value": 3.3, "source_url": "https://www.airpurifierfirst.com/comparison/levoit-core-300s-vs-levoit-core-400s/", "source_type": "third_party_test", "checked_at": "2026-10-11T08:14:20.730Z", "maintenance_due": false }, { "attribute": "observed_device_price", "condition": "Dated US listing, not delivered or linked-merchant price.", "id": "c-price", "locator": "8025385369751 / SKU HEAPAPLVSUS0072B", "market": "US", "max_age_days": 1, "model": "levoit-core-400s", "source_id": "400-catalogue", "state": "documented", "unit": "USD", "value": 219.99, "source_url": "https://levoit.com/products.json?limit=250", "source_type": "manufacturer", "checked_at": "2026-10-11T11:42:16.389Z", "maintenance_due": true }, { "attribute": "observed_filter_price", "condition": "Dated single spare, not delivered cost or proof of your unit's fit.", "id": "c-filter-price", "locator": "8025385304215 / SKU HEACAFLVNUS0051A", "market": "US", "max_age_days": 1, "model": "levoit-core-400s", "source_id": "400-catalogue", "state": "documented", "unit": "USD", "value": 49.99, "source_url": "https://levoit.com/products.json?limit=250", "source_type": "manufacturer", "checked_at": "2026-10-11T11:42:16.389Z", "maintenance_due": true }, { "attribute": "listed_filter_compatibility", "condition": "Listing names 400S-P, elsewhere 400S series. Older/regional fit unverified.", "id": "c-filter", "locator": "Compatible with only / replacement SKU", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-filter", "state": "documented", "unit": "", "value": "Core 400S-P only; SKU HEACAFLVNUS0051A", "source_url": "https://levoit.com/products/core-400s-p-3-stage-replacement-filter", "source_type": "manufacturer", "checked_at": "2026-10-11T11:44:34.187Z", "maintenance_due": false }, { "attribute": "matched_noise_range", "condition": "Spec 22-52 dB; summary/manual 24-52 dB. Distance/protocol and per-speed CADR unresolved.", "id": "c-noise", "locator": "Spec/summary / manual page 2", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-listing", "state": "conflicting", "unit": "dB range", "value": null, "source_url": "https://levoit.com/products/core-400s-p-smart-air-purifier", "source_type": "manufacturer", "checked_at": "2026-10-11T11:43:33.105Z", "maintenance_due": false }, { "attribute": "prefilter_cleaning", "condition": "Unplug. Outer prefilter only; do not wash main/carbon cartridge.", "id": "c-clean", "locator": "PDF pages 12-13: Cleaning the Filter", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-manual", "state": "documented", "unit": "", "value": "Dry brush or vacuum every 2-4 weeks", "source_url": "https://levoit.com/cdn/shop/files/HEAPAPLVSUS0162Y_0072B_0102B_0102C_Core_400S-P_Smart_Air_Purifier_manual_US_A1-241202.pdf?v=10045282693949465458", "source_type": "manufacturer_manual", "checked_at": "2026-10-11T11:45:34.104Z", "maintenance_due": false }, { "attribute": "replacement_interval", "condition": "Reminder, not measured life; app assumes 12h/day. Budget sets over your chosen period.", "id": "c-life", "locator": "PDF page 13: Replacement", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-manual", "state": "documented", "unit": "", "value": "Around 12 months; depends on use and pollution", "source_url": "https://levoit.com/cdn/shop/files/HEAPAPLVSUS0162Y_0072B_0102B_0102C_Core_400S-P_Smart_Air_Purifier_manual_US_A1-241202.pdf?v=10045282693949465458", "source_type": "manufacturer_manual", "checked_at": "2026-10-11T11:45:34.104Z", "maintenance_due": false }, { "attribute": "setup_network", "condition": "Local/remote controls differ; current plugins and outage behavior unverified.", "id": "c-wifi", "locator": "PDF pages 7, 17: Controls / WiFi", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-manual", "state": "documented", "unit": "", "value": "Secure 2.4GHz WiFi for VeSync setup", "source_url": "https://levoit.com/cdn/shop/files/HEAPAPLVSUS0162Y_0072B_0102B_0102C_Core_400S-P_Smart_Air_Purifier_manual_US_A1-241202.pdf?v=10045282693949465458", "source_type": "manufacturer_manual", "checked_at": "2026-10-11T11:45:34.104Z", "maintenance_due": false }, { "attribute": "placement_clearance", "condition": "Manual setup clearance on all sides; remove filter plastic before first use.", "id": "c-clearance", "locator": "PDF page 6: Getting Started", "market": "US", "max_age_days": 90, "model": "levoit-core-400s", "source_id": "400-manual", "state": "documented", "unit": "in", "value": 15, "source_url": "https://levoit.com/cdn/shop/files/HEAPAPLVSUS0162Y_0072B_0102B_0102C_Core_400S-P_Smart_Air_Purifier_manual_US_A1-241202.pdf?v=10045282693949465458", "source_type": "manufacturer_manual", "checked_at": "2026-10-11T11:45:34.104Z", "maintenance_due": false } ], "sources": [ { "checked_at": "2026-10-11T11:43:33.105Z", "id": "400-listing", "label": "Levoit US Core 400S-P listing", "status": "active", "type": "manufacturer", "url": "https://levoit.com/products/core-400s-p-smart-air-purifier", "use_scope": "bounded_editorial_summary" }, { "checked_at": "2026-10-11T11:42:16.389Z", "id": "400-catalogue", "label": "Levoit US product/filter catalogue", "status": "active", "type": "manufacturer", "url": "https://levoit.com/products.json?limit=250", "use_scope": "bounded_editorial_summary" }, { "checked_at": "2026-10-11T11:44:34.187Z", "id": "400-filter", "label": "Levoit Core 400S-P original replacement filter", "status": "active", "type": "manufacturer", "url": "https://levoit.com/products/core-400s-p-3-stage-replacement-filter", "use_scope": "bounded_editorial_summary" }, { "checked_at": "2026-10-11T11:45:34.104Z", "id": "400-manual", "label": "US 400S-P manual A1-241202", "status": "active", "type": "manufacturer_manual", "url": "https://levoit.com/cdn/shop/files/HEAPAPLVSUS0162Y_0072B_0102B_0102C_Core_400S-P_Smart_Air_Purifier_manual_US_A1-241202.pdf?v=10045282693949465458", "use_scope": "bounded_editorial_summary" }, { "checked_at": "2026-10-11T08:14:20.730Z", "id": "400-apf", "label": "Air Purifier First 300S / 400S test", "status": "active", "type": "third_party_test", "url": "https://www.airpurifierfirst.com/comparison/levoit-core-300s-vs-levoit-core-400s/", "use_scope": "bounded_editorial_summary" }, { "checked_at": "2026-10-11T11:41:05.640Z", "id": "400-method", "label": "Air Purifier First method", "status": "active", "type": "test_method", "url": "https://www.airpurifierfirst.com/testing-methodology/", "use_scope": "bounded_editorial_summary" }, { "checked_at": "2026-10-11T11:45:58.793Z", "id": "400-owner-9", "label": "400S Homebridge issue/follow-up, June 2021", "status": "active", "type": "owner_report", "url": "https://github.com/Kwintenvdb/homebridge-vesync-client/issues/9", "use_scope": "bounded_editorial_summary" }, { "checked_at": "2026-10-11T11:48:15.802Z", "id": "400-owner-4", "label": "400S mixed-device issue, October 2021", "status": "active", "type": "owner_report", "url": "https://github.com/tushardhadiwal/homebridge-levoitcore-client/issues/4", "use_scope": "bounded_editorial_summary" } ], "tools": { "power_presets": [ { "fact_id": "c-rated", "label": "US manual rating: 38 W", "note": "US AC120V/60Hz rating, also in current listing; not measured consumption.", "watts": 38 }, { "fact_id": "c-turbo", "label": "Publisher specimen, Turbo: 35 W", "note": "Publisher Core 400S specimen at Turbo, not current 400S-P rating or CADR.", "watts": 35 }, { "fact_id": "c-sleep", "label": "Publisher specimen, Sleep: 3.3 W", "note": "Publisher Core 400S Sleep specimen; no matched CADR, not maximum airflow.", "watts": 3.3 } ] }, "third_party": { "heading": "Core 300S versus 400S: the measured trade-offs", "source_ids": [ "400-apf", "400-method" ], "summary": "Air Purifier First older 300S / 400S specimens: 92% / 96% particle reduction, 320 sq ft, 60min, max speed, Temtop LKC1000S. Maximum: 23W / 65.2dBA versus 35W / 59.9dBA; Sleep: 3.8W / 41.4dBA versus 3.3W / 42.1dBA.", "interpretation": "400S: more particle reduction, lower max noise, higher max power in this test; not equal-output efficiency or CADR/gas/health proof. Starts, repeats, mic distance/background and P-variant/quiet-speed equivalence unknown.", "disagreement": "The every-speed lower-power claim conflicts with maximum 35W / 23W. Fan labels are not equal cleaning.", "method": "Closed rooms, 60min, power meter, noise by speed; affiliate links disclosed. Historical conditions incomplete; not BenchPicked testing." }, "owner_context": { "sample_count": 2, "overview": "Two 2021 Core 400S Homebridge self-reports: integration users, not a representative survey or current 400S-P test.", "method": "Exact-model use, all available replies, one count per primary author. Follow-ups are context, not votes. Purchase/identity unverified. Summaries/links only; no profiles, identifiers, logs or screenshots.", "excluded": "Ten of 146 issue hits screened; maintainers, other/modified models, prospective buyers and vague replies excluded. Noise/filter-life/hardware sample unestablished, not zero problems.", "reports": [ { "source_id": "400-owner-9", "model": "levoit-core-400s", "date": "2021-06-24", "original_key": "github:Kwintenvdb/homebridge-vesync-client:issue:9", "summary": "A 400S user reported Homebridge nonresponse, then confirmed another plugin worked.", "context": "Same-author June 29 recovery; plugin, not official-app/cleaning failure. Region/duration unknown; no current-release or 400S-P guarantee.", "locator": "June 24 issue and June 29 author follow-up", "deep_link": "https://github.com/Kwintenvdb/homebridge-vesync-client/issues/9#issuecomment-870972562", "evidence_type": "owner_self_report", "is_benchpicked_data": false }, { "source_id": "400-owner-4", "model": "levoit-core-400s", "date": "2021-10-04", "original_key": "github:tushardhadiwal/homebridge-levoitcore-client:issue:4", "summary": "A 400S user reported working control alone; adding unsupported LV-PUR131S caused a plugin error.", "context": "November 9 developer suggestion was tested only with 300S, not a confirmed 400S fix. A mixed-device plugin error is not cleaning or official-app failure.", "locator": "October 4 issue and November 9 developer reply", "deep_link": "https://github.com/tushardhadiwal/homebridge-levoitcore-client/issues/4", "evidence_type": "owner_self_report", "is_benchpicked_data": false } ], "buyer_implication": "Check Homebridge model, plugin version and all account devices. Dated recoveries do not establish native HomeKit, current hardware or official-app failure." }, "ownership": { "heading": "Filter upkeep, placement and connected controls", "sections": [ { "body": "Remove the wrapper; allow 15 inches (38cm) on all sides, not just cabinet space. A crowded intake is not the rated-room setup.", "heading": "Remove the wrapper and leave intake clearance", "source_id": "400-manual" }, { "body": "Unplug; dry-brush/vacuum prefilter every 2-4 weeks; main/carbon is not washable. Replacement varies by use/pollution. The 12-month reminder assumes 12h/day. Vacuum sensor every three months (p14).", "heading": "Clean the prefilter; budget replacements, not a washable cartridge", "source_id": "400-manual" }, { "body": "Dated catalogue: $219.99 device / $49.99 spare. Match the 400S-P-only spare; old-unit fit, tax/shipping and merchant prices need checking.", "heading": "Match the spare and obtain delivered costs", "source_id": "400-catalogue" }, { "body": "Secure 2.4GHz WiFi for VeSync setup. Buttons, official remote controls and Homebridge differ; native HomeKit and current app/outage behavior remain unknown.", "heading": "Distinguish native buttons from third-party control", "source_id": "400-manual" } ] }, "maintenance": { "changes": [ { "date": "2026-10-11", "note": "Added US records, cost scenarios and two dated reports. Preserved earlier specs/dates, media and commercial identity; no physical test." }, { "date": "2026-10-11", "note": "Corrected unknown status, buying choices and upkeep; dates/history preserved." } ], "method": "Attributed official records, publisher tests, owner reports and arithmetic; no physical test.", "owner": "BenchPicked editorial desk", "policy": "Review ages: price 1 day, specs 90, tests 365; editorial choices, not SEO rules. Preserve source dates and unresolved variants." }, "decision_support": { "fit_conditions": [ { "fact_ids": [ "c-room", "c-area", "c-cadr", "c-smoke" ], "text": "Match 358 sq ft / 4.8 ACH and speed, not 1,718 sq ft / 1 ACH or old 260 CFM." }, { "fact_ids": [ "c-filter", "c-filter-price", "c-rated", "c-turbo", "c-sleep" ], "text": "Match your spare and delivered costs; older-unit fit needs checking." }, { "fact_ids": [ "c-clearance", "c-wifi", "c-noise", "c-smoke" ], "text": "Check clearance/network and speed/version evidence for quiet/plugin use." } ] }, "content_revised_at": "2026-11-02", "historical_claim_records": [ { "record_index": 0, "claim": "Air Quality Sensor: Laser dust sensor", "attribution": "manufacturer_attributed", "boundary": "This field is attributed to the cited manufacturer documentation; BenchPicked did not independently measure it.", "source_url": "https://levoit.com/collections/air-purifiers/products/core-400s-p-smart-true-hepa-air-purifier", "recorded_at": "2026-05-16T13:02:13.651179+00:00", "locator": "editorial_contract.claim_proofs[0]", "verification_scope": "historical_site_attribution_not_current_source_verification", "archived_matched_source_locator": null }, { "record_index": 1, "claim": "Auto Mode: Yes", "attribution": "manufacturer_attributed", "boundary": "This field is attributed to the cited manufacturer documentation; BenchPicked did not independently measure it.", "source_url": "https://levoit.com/collections/air-purifiers/products/core-400s-p-smart-true-hepa-air-purifier", "recorded_at": "2026-05-16T13:02:13.651179+00:00", "locator": "editorial_contract.claim_proofs[1]", "verification_scope": "historical_site_attribution_not_current_source_verification", "archived_matched_source_locator": null }, { "record_index": 2, "claim": "Brand: Levoit", "attribution": "manufacturer_attributed", "boundary": "This field is attributed to the cited manufacturer documentation; BenchPicked did not independently measure it.", "source_url": "https://levoit.com/collections/air-purifiers/products/core-400s-p-smart-true-hepa-air-purifier", "recorded_at": "2026-05-16T13:02:13.651179+00:00", "locator": "editorial_contract.claim_proofs[2]", "verification_scope": "historical_site_attribution_not_current_source_verification", "archived_matched_source_locator": null }, { "record_index": 3, "claim": "Cadr Dust: 260 CFM", "attribution": "source_attributed", "boundary": "This field is attributed to the cited standards or certification directory and remains limited to its listed model and scope.", "source_url": "https://www.ahamdir.com/room-air-cleaners/", "recorded_at": "2026-05-16T13:02:13.651181+00:00", "locator": "editorial_contract.claim_proofs[3]", "verification_scope": "historical_site_attribution_not_current_source_verification", "archived_matched_source_locator": null }, { "record_index": 4, "claim": "Cadr Pollen: 260 CFM", "attribution": "source_attributed", "boundary": "This field is attributed to the cited standards or certification directory and remains limited to its listed model and scope.", "source_url": "https://www.ahamdir.com/room-air-cleaners/", "recorded_at": "2026-05-16T13:02:13.651181+00:00", "locator": "editorial_contract.claim_proofs[4]", "verification_scope": "historical_site_attribution_not_current_source_verification", "archived_matched_source_locator": null }, { "record_index": 5, "claim": "Cadr Smoke: 260 CFM", "attribution": "source_attributed", "boundary": "This records what the cited source publishes; it is not a BenchPicked measurement.", "source_url": "https://levoit.com/collections/air-purifiers/products/core-400s-p-smart-true-hepa-air-purifier", "recorded_at": "2026-05-16T13:02:13.651179+00:00", "locator": "editorial_contract.claim_proofs[5]", "verification_scope": "historical_site_attribution_not_current_source_verification", "archived_matched_source_locator": null }, { "record_index": 6, "claim": "Category: Air purifier", "attribution": "source_attributed", "boundary": "This records what the cited source publishes; it is not a BenchPicked measurement.", "source_url": "https://levoit.com/collections/air-purifiers/products/core-400s-p-smart-true-hepa-air-purifier", "recorded_at": "2026-05-16T13:02:13.651179+00:00", "locator": "editorial_contract.claim_proofs[6]", "verification_scope": "historical_site_attribution_not_current_source_verification", "archived_matched_source_locator": null }, { "record_index": 7, "claim": "Coverage Area Sqft: 403 sq ft", "attribution": "source_attributed", "boundary": "This records what the cited source publishes; it is not a BenchPicked measurement.", "source_url": "https://levoit.com/collections/air-purifiers/products/core-400s-p-smart-true-hepa-air-purifier", "recorded_at": "2026-05-16T13:02:13.651179+00:00", "locator": "editorial_contract.claim_proofs[7]", "verification_scope": "historical_site_attribution_not_current_source_verification", "archived_matched_source_locator": null }, { "record_index": 8, "claim": "Dimensions: 10.8 x 10.8 x 20.5 in", "attribution": "source_attributed", "boundary": "This records what the cited source publishes; it is not a BenchPicked measurement.", "source_url": "https://levoit.com/collections/air-purifiers/products/core-400s-p-smart-true-hepa-air-purifier", "recorded_at": "2026-05-16T13:02:13.651179+00:00", "locator": "editorial_contract.claim_proofs[8]", "verification_scope": "historical_site_attribution_not_current_source_verification", "archived_matched_source_locator": null }, { "record_index": 9, "claim": "Filter Type: 3-stage True HEPA-style filter", "attribution": "manufacturer_attributed", "boundary": "This field is attributed to the cited manufacturer documentation; 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