One unit, 2 brandsMAX500
Intellipure MAX500 = HealthWay MAX500 · Air purifier filed by HealthWay and 1 other brand
- HealthWay
- Intellipure
DOE certified smoke CADR, every brand
426cfmDOE test
Dust 449 · PM2.5 438 cfm
426 cfm under every nameChoose on price, warranty and what's in stock.
DOE data as of 2026-11-03DOE record
MAX500 (HealthWay and Intellipure): all filed with DOE under one basic model, MAX500, certified at 426 cfm. DOE data as of 2026-11-03.
Sold as
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MAX500
426 cfm
No Amazon listing matched as of 2026-11-03.
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MAX500
426 cfm
No Amazon listing matched as of 2026-11-03.
The filings
DOE lists one individual model number, MAX500, under basic model MAX500, filed under 2 brand names. Every filing lists the same figures: smoke CADR 426 cfm, PM2.5 CADR 438 cfm and a 660 sq ft room size.
| Brand | Model numbers | Smoke CADR | CADR/W | Room size, sq ft | Listing |
|---|---|---|---|---|---|
| HealthWay | MAX500 | 426 | 5.4 | 660 | None matched |
| Intellipure | MAX500 | 426 | 5.4 | 660 | None matched |
How we know it's one unit
Every brand here filed its model numbers under the same DOE basic model, MAX500. DOE's definition of a basic model (10 CFR 430.2) covers "all units of a given type of covered product (or class thereof) manufactured by one manufacturer" with "the same primary energy source" and nearly identical "electrical, physical, and functional (or hydraulic) characteristics that affect energy consumption, energy efficiency, water consumption, or water efficiency." So one set of DOE figures covers every name on the list. Both brands file MAX500 itself as their model number, so the number alone doesn't say which of them builds it.
Brands may still differ in color, controls, accessories, warranty and support. Full record and every model number: HealthWay MAX500.
How much does the MAX500 cost to run?
DOE's record lists 430 kWh a year, the annual energy figure from DOE's test. That's about $78.09 a year.
At 18.16¢ per kWh, the US average residential price for August 2026 (EIA Electric Power Monthly, table 5.6.A). Worked out from the certified figures.
Among 140 air purifiers, PM2.5 CADR 150+ cfm
Smoke CADR (cfm)426
Higher than 128 of 140.
143591 cfm
Efficiency (CADR/W)5.4
Higher than 66 of 140. 2 others share 5.4.
313.5
Who makes the MAX500, and is it the same under every brand?
- Who makes the Intellipure MAX500?
- DOE's records don't say. The Intellipure MAX500 is filed under basic model MAX500 along with the HealthWay MAX500. Both brands file that same number as their model, and DOE's database has no manufacturer field.
- Is the Intellipure MAX500 the same as the HealthWay MAX500?
- Yes, by DOE's records. Both are filed under basic model MAX500 and list the same certified figures: smoke CADR 426 cfm, PM2.5 CADR 438 cfm and a 660 sq ft room size.
- Which brand of MAX500 is cheapest to run?
- They tie: every brand files smoke CADR 426 cfm, PM2.5 CADR 438 cfm and a 660 sq ft room size, so each costs about $78.09 a year to run.
Related units, shared brands
More: all units sold under several brands · all air purifiers