Model differences
Shark HP202 or HP302: room-rating basis and filter routine
The Shark HP202 and HP302 are both large cylindrical household purifiers with a front particle display and top-mounted controls, but their biggest area numbers are not directly comparable. HP202’s exact page states 1,200 square feet at one air change per hour. Shark’s HP302 page says up to 1,400 square feet in one hour but does not give that figure an exact ACH basis. The finder keeps the distinction rather than treating HP302 as a verified higher-capacity 1-ACH or 4.8-ACH model.
Start with the room-rate evidence
If you accept a slower one-change-per-hour rating, HP202’s 1,200-square-foot figure has an explicit basis. HP302’s 1,400-square-foot one-hour headline may be relevant for casual context, but it is not sufficient for a strict rate-specific minimum. Neither model has a published 4.8-ACH area or CFM CADR in the reviewed exact materials. For a bedroom, kitchen or open-plan room where repeated clean-air delivery is the goal, compare models only when the stated ACH basis matches your requirement.
Compare shell and power
| Model | Published room claim | Body (W × D × H) | Weight | Rated / peak input |
|---|---|---|---|---|
| HP202 | 1,200 sq ft at 1 ACH | 12.6 × 12.6 × 24.57 in | 10.47 lb | 36 W / 54 W |
| HP302 | Up to 1,400 sq ft in one hour; ACH unspecified | 13.27 × 13.27 × 24.72 in | 13.45 lb | 54 W / 86.2 W |
Both are floor-placement machines; the HP200 and HP300 series guides require at least three inches between the shell and surrounding objects. Measure the body plus space for airflow, not just a furniture opening. HP302 is slightly wider, taller and heavier, and its listed rated and peak wattage are higher.
Filter routine and display behavior
HP202’s page and family guide give a six-to-twelve-month filter replacement interval and a three-month rotate/flip reminder. HP302 instead has a NeverChange filter promoted for up to five years under the guide’s specific GB/T18801-2015 P.CCM test conditions (50% CADR decline, 300 sq ft and 12 hours daily at maximum). The long-life phrase does not make its mesh dust screens maintenance-free: the HP300 guide says to clean them, and if rinsed, dry them for twelve hours. HP302 also includes a fragrance cartridge; HP202 does not have the same documented included cartridge in its page list.
HP202 has four fan levels; the HP300 guide lists five. Both series guides describe local controls, particle-responsive Auto and selectable PM1/PM2.5/PM10 display values. HP302’s Eco behavior can stop the fan after five minutes at 100% Clean Air in Auto, while HP202’s series guide has different behavior; use each model’s own manual. A color ring or PM reading is a particle-sensor signal, not proof that every gas or odor is absent. App scheduling and numeric noise limits are not confirmed for either reviewed exact offer.
Choose HP202 if an explicit 1-ACH figure and a smaller body matter, and you are comfortable replacing its HEPA filter more often. Consider HP302 for the longer-life filter test claim, five-level fan control, local particle readings and optional scent cartridge when those features matter more than a rate-specific room promise. If your essential choice is 4.8 ACH or CADR, neither source set resolves it; compare a model with a published, like-for-like value. See the separate HP202 review and HP302 review for source limits and setup details.