Air purifiers / Comparison

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The starting packages are single room purifiers with standard filters. Particle removal, gas removal and health outcomes are different claims.

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Documented specifications and exact purchase packages
Compare the details	HPA5300B — US standard package	Airmega 400S — US standard package
Community reviews	No community reviews yet. Purchase packages of the same model share one community score. Read all reviews Write a review	No community reviews yet. Purchase packages of the same model share one community score. Read all reviews Write a review
US purchase package	HPA5300B, black, MPN HPA5300BV4, UPC 328785003352; one US purifier with its initial filters, not a filter bundle, subscription or bulk quote. Product & sources The store lists one HEPA Filter R and one Odor Reducing A pre-filter as included, while its product details and the US manual require three R filters in the HPA5300; check the box contents. Enhanced Odor & VOC S filters (three for this series) are optional and sold separately. The AHAM record lists 120 V / 60 Hz. HoneywellStore.com is operated by eAccess Solutions, Inc. under licence from Honeywell International. Price, stock and shipment are not asserted. Sources · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.Kaz USA (Helen of Troy) for Honeywell: Honeywell InSight Series HEPA Air Purifier owner's manual, HPA5100 to HPA5350 (US)Checked 2026-10-21. Read the original source and its check date before relying on this value.AHAM Verifide (Association of Home Appliance Manufacturers): AHAM Verifide directory of certified room air cleaners: Honeywell HPA5300BChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	Airmega 400S, White, one US Wi-Fi model with the standard filters. Product & sources Includes two pre-filters and two Max2 filters, one set on each side. Select the 400/400S replacement set; the 300/300S filter set is a different item. The linked US model is rated for 120 V/60 Hz. Sources · 2026-09-13 Coway: Airmega 400S — US product and specificationsChecked 2026-09-13. Read the original source and its check date before relying on this value.Coway: Airmega 300, 400 and S-series US manualChecked 2026-09-13. Read the original source and its check date before relying on this value.Coway: Airmega 400 and 400S Max2 Filter SetChecked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
Where to buy	Select: HPA5300B, black, MPN HPA5300BV4, UPC 328785003352; one US purifier with its initial filters, not a filter bundle, subscription or bulk quote. View at HoneywellStore.com — HPA5300B — US standard package; opens in a new tab The link may open several packages. Check current price and availability with the seller. Opens in a new tab.	Select: Airmega 400S, White, one US Wi-Fi model with the standard filters. View at Coway US — Airmega 400S — US standard package; opens in a new tab The link may open several packages. Check current price and availability with the seller. Opens in a new tab.
External rating	Not checked yet	4.1 out of 5 from 45 ratings · Coway US store · Checked October 23, 2026.
Smoke CADR Clean-air delivery rate specifically identified for smoke particles. Compare like-for-like particle ratings; this is not a gas-removal or health-outcome rating.	323 cfmTobacco-smoke CADR in the Honeywell store table and the AHAM Verifide record. The store prints no unit; the AHAM record uses US units and EPA guidance expresses CADR in cfm. Sources · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.AHAM Verifide (Association of Home Appliance Manufacturers): AHAM Verifide directory of certified room air cleaners: Honeywell HPA5300BChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.US Environmental Protection Agency: Guide to Air Cleaners in the Home — room sizing and CADRChecked 2026-09-30. We reviewed the official page text on the check date. Checkout options were not verified.	328 cfm Sources · 2026-09-13 Coway: Airmega 400S — US product and specificationsChecked 2026-09-13. Read the original source and its check date before relying on this value.Coway: What are air filter ratings?Checked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
Dust CADR Clean-air delivery rate specifically identified for dust. Keep this separate from smoke and pollen CADR.	Sources disagree The sources give different answers, so we have not chosen one as fact. Read the attached notes and confirm the current specification before relying on it. The Honeywell store and the AHAM Verifide directory give different dust ratings for HPA5300B. No value is chosen. Sources · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.AHAM Verifide (Association of Home Appliance Manufacturers): AHAM Verifide directory of certified room air cleaners: Honeywell HPA5300BChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	328 cfm Sources · 2026-09-13 Coway: Airmega 400S — US product and specificationsChecked 2026-09-13. Read the original source and its check date before relying on this value.Coway: What are air filter ratings?Checked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
Pollen CADR Clean-air delivery rate specifically identified for pollen. Use the same particle type when comparing models.	335 cfmThe store table and the AHAM record agree. Sources · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.AHAM Verifide (Association of Home Appliance Manufacturers): AHAM Verifide directory of certified room air cleaners: Honeywell HPA5300BChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	400 cfm Sources · 2026-09-13 Coway: Airmega 400S — US product and specificationsChecked 2026-09-13. Read the original source and its check date before relying on this value.Coway: What are air filter ratings?Checked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
CADR without a named particle type A maker-listed CADR whose particle type is not specified by the cited source. This value is not substituted for a smoke, dust or pollen rating.	Not verified We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice. The cited sources give separate smoke, dust and pollen ratings and no additional unnamed CADR. Source · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	Not verified We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice. The cited specifications provide separate particle ratings and no additional unnamed CADR. Source · 2026-09-13 Coway: Airmega 400S — US product and specificationsChecked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
Advertised room area The documented room area at the air-change assumption below. Area claims at different ACH are not directly equivalent; check ceiling height and layout.	500 sq ftPaired with 4.8 ACH and based on the smoke CADR at the highest setting. Honeywell states no ceiling height; EPA sizing guidance assumes 8 ft. Sources · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.AHAM Verifide (Association of Home Appliance Manufacturers): AHAM Verifide directory of certified room air cleaners: Honeywell HPA5300BChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	1560 sq ftPaired with 2 ACH; the manual specifies an 8 ft ceiling. Sources · 2026-09-13 Coway: Airmega 400S — US product and specificationsChecked 2026-09-13. Read the original source and its check date before relying on this value.Coway: Airmega 300, 400 and S-series US manualChecked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
Room-area air changes Air changes per hour used for the displayed room-area claim. Read this together with room area. Actual airflow depends on placement and operating setting.	4.8 ACHApplies to the 500 sq ft claim. Source · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	2 ACHApplies to 1,560 sq ft. The manual also gives 780 sq ft at 4 ACH. Sources · 2026-09-13 Coway: Airmega 400S — US product and specificationsChecked 2026-09-13. Read the original source and its check date before relying on this value.Coway: Airmega 300, 400 and S-series US manualChecked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
Rated power The documented rated or maximum electrical input, as qualified by the source. Actual energy use depends on the fan setting. Read the source conditions alongside the value.	Not verified We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice. Neither the store page nor the US InSight manual states a rated input. Both call the model ENERGY STAR certified, but the current ENERGY STAR V3.0 dataset has no HPA5300 record, so no certified power figure is available. Sources · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.Kaz USA (Helen of Troy) for Honeywell: Honeywell InSight Series HEPA Air Purifier owner's manual, HPA5100 to HPA5350 (US)Checked 2026-10-21. Read the original source and its check date before relying on this value.ENERGY STAR (US EPA): ENERGY STAR Certified Room Air Cleaners V3.0 dataset, Honeywell recordsChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	66 W Sources · 2026-09-13 Coway: Airmega 400S — US product and specificationsChecked 2026-09-13. Read the original source and its check date before relying on this value.Coway: Airmega 300, 400 and S-series US manualChecked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
App control Whether the listed model supports control through the manufacturer’s app. Check phone requirements, network setup and which controls remain available on the unit.	Not verified We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice. The store page and manual describe an on-unit touch control panel, Automatic Cleaning Mode and an auto-off timer. Neither establishes app control; absence of a claim does not establish no support. Sources · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.Kaz USA (Helen of Troy) for Honeywell: Honeywell InSight Series HEPA Air Purifier owner's manual, HPA5100 to HPA5350 (US)Checked 2026-10-21. Read the original source and its check date before relying on this value.	YesThe S model supports Wi-Fi and mobile app control. Source · 2026-09-13 Coway: Airmega 400S — US product and specificationsChecked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
Standard replacement filter The named replacement for the standard included filter where verified. Match the exact purifier model and distinguish standard filters from optional specialty versions.	True HEPA Filter R, three per unit (HRF-R3 three-pack, or HRF-R1/HRF-R2), with Pre-filter A (HRF-AP1 or HRF-APP1)The manual specifies three R filters for the HPA5300 series every 12 months and one A or A+ pre-filter every 3 months; the store FAQ gives 6-12 and 1-3 months. Enhanced Odor & VOC S filters are optional. The store's included-filter bullet names only one R filter. Sources · 2026-10-21 HoneywellStore.com (eAccess Solutions, under licence from Honeywell): Honeywell Allergen Plus HEPA Air Purifier HPA5300B US store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.Kaz USA (Helen of Troy) for Honeywell: Honeywell InSight Series HEPA Air Purifier owner's manual, HPA5100 to HPA5350 (US)Checked 2026-10-21. Read the original source and its check date before relying on this value.	Airmega 400 / 400S Max2 Filter Set, SKU 3104756 — two filtersOne Max2 filter fits each side; the washable pre-filters are separate components. Source · 2026-09-13 Coway: Airmega 400 and 400S Max2 Filter SetChecked 2026-09-13. Read the original source and its check date before relying on this value. Review due. Check the current source before buying.
Questions to check before buying	Dust CADR differs: the Honeywell store lists 335 while the AHAM Verifide directory lists 339 for HPA5300B. Both observations are retained. The store page and the 2021 US manual call the model ENERGY STAR certified, but the current ENERGY STAR V3.0 dataset has no HPA5300 record and the AHAM record carries no ENERGY STAR flag. No rated power is published in the reviewed sources. The store says the unit includes one HEPA R filter, while its own details and the manual require three R filters for the HPA5300 series. Check the box contents. HoneywellStore.com is a licensed store and Kaz USA (Helen of Troy) makes the purifier under the Honeywell brand; no CompareFoundry airflow, noise or filtration test was performed.	The 1,560 sq ft area assumes 2 ACH and an 8 ft ceiling; it is not a 4.8 ACH room rating.

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