Air Purifiers / Shark
Shark NeverChange Air Purifier MAX (HP302)
Buys you out of filter costs for five years, at the price of never knowing its CADR.
Overall score 6.3/10
Pros
- + A 5-year filter genuinely removes the annual $60–100 tax that defines this category
- + Purely mechanical and CARB Mechanical — no ioniser, no UV, nothing to remember to switch off
- + The odour cartridge is optional and removable, so you are not forced to perfume your air
- + CleanSense IQ auto mode with no account, no app and no cloud dependency
- + 13.45 lb and 54W nominal for a 1,400 ft²-class tower
Cons
- − No CADR at all, and Shark is absent from the AHAM Verifide directory — the "1,400 sq. ft." has no published air-change basis
- − The 5-year filter claim is measured to an endpoint that permits a 50% fall in clean-air delivery, per independent analysis of Shark's own conditions
- − No decibel figures published at any speed
- − $399.99 list buys 435 verified CFM from Blueair or 253 from Winix; here it buys an unquantified airflow
- − The remote is the only controller and Shark sells it as a $16.99 replacement part — there is no app fallback
Shark NeverChange Air Purifier MAX (HP302) review: what the specs say
Buys you out of filter costs for five years, at the price of never knowing its CADR. At $399.99, Shark's 2023 model sits in the middle of the range — the air Purifiers we compare run from $49.99 to $1,014.99. It scores 6.3/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Freedom From Ozone & Air Chemistry at 9.0/10 — whether the unit adds an ioniser, plasma, UV or photocatalytic stage to the airstream, whether that stage can be switched off, and how CARB classifies the device — 'Mechanical' means filtration only, 'Electronic' means capable of generating ozone and certified only as being at or below 0.050 ppm. The weakest is Coverage-Claim Honesty at 3.0/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: no CADR at all, and Shark is absent from the AHAM Verifide directory — the "1,400 sq. ft." has no published air-change basis; and the 5-year filter claim is measured to an endpoint that permits a 50% fall in clean-air delivery, per independent analysis of Shark's own conditions. Every specification on this page comes from Shark's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| AHAM Verifide CADR (Smoke / Dust / Pollen) | Not published, and not AHAM Verifide. Shark does not appear in the AHAM Verifide directory at all in August 2026, and publishes no CADR for smoke, dust or pollen. The only performance number on the page is "trapping 99.98% of large, small, and micro-sized particles", which is a capture-efficiency claim and says nothing about airflow. CFM |
| AHAM Verifide Room Size (4.8 ACH) | Not listed in the AHAM Verifide directory (August 2026) ft² |
| Coverage Claim & Its Air-Change Basis | "Up to 1,400 sq. ft." with no air-change basis stated anywhere on Shark's own page — no ACH figure, no room-volume assumption, no CADR to derive one from. Retail listings variously quote 1,300 and 1,200–1,500 sq ft for the same model. This is the least checkable coverage claim in the file. |
| Filter Grade (True HEPA / HEPA-Type / H13) | "True HEPA Multi-Filter" — a single tall cartridge combining pre-filtration and HEPA media, sold on longevity rather than grade. Shark quotes 99.98% capture but no H-class rating and no EN 1822 or IEST reference. |
| Pre-Filter (Washable?) | Integrated into the 5-year multi-filter — nothing separate to wash, and nothing separate to buy |
| Filter Cost per Year | About $80/yr in practice, all of it optional: the Odor Neutralizer Cartridge is $19.99 on a roughly 3-month cycle, and it is a fragrance cartridge you can leave out entirely. The main filter is claimed at up to 5 years, so amortised it is small. The caveat: independent analysis of Shark's own test conditions (cleanairadviser.com, 2026) reports the 5-year figure is measured in a 300 ft² room, 12 hours a day at maximum fan speed, to an endpoint that allows clean-air delivery to fall by 50% — so the filter is "still working" at half the airflow it started with. |
| Ioniser / UV / PCO & CARB Classification | None. No ioniser, no UV, no PCO. CARB-certified and classified MECHANICAL (Shark HP302, EO G-23-167, notified 2023-06-26). The Odor Neutralizer cartridge is a fragrance emitter, not an oxidiser — but it is still adding VOCs to the air you are cleaning. |
| Noise, Lowest to Highest Setting | Not published by Shark at either end. No decibel figure appears on the product page. dB |
| Air Quality Sensor | "CleanSense IQ" air-quality monitoring driving an auto mode. Shark does not state the sensing technology or which pollutants it resolves. |
| Smart Features & Offline Operation | None. No Wi-Fi, no app, no account. Note that the infrared remote is listed as a $16.99 replacement part — losing it costs real money because there is no phone fallback. |
| Power Draw & Annual Energy | 54W nominal, 86.2W peak (Shark published) |
| Warranty Terms & Conditions | 2-year limited warranty |
| Connectivity | None — infrared remote in the box, no Wi-Fi and no app |
| Material | Not published by Shark — the spec sheet lists no housing material |
| Warranty | 24 months |
Compare Shark NeverChange Air Purifier MAX (HP302) With
Cheaper Alternative
Blueair Blue Pure 211i Max (3613111100) — $349.99
Premium Alternative
Dyson Purifier Cool Gen1 TP10 — $479.99