Tool
Compare two products
Pick any two products from our reviews and see specifications, price, buyer ratings and our scores in one table.
Recorded evidence
What separates these listings
- Price snapshot
- $55.99 price gap
- Product A has the lower captured price. This excludes delivery and ongoing costs.
- Editorial assessment
- 0.9-point score gap
- Product B has the higher research score, not a measured performance advantage.
- Specification coverage
- 14 of 16 fields shared
- Shared labels have recorded values on both sides; matching labels do not guarantee matching units or test conditions.
Product A
GermGuardian HEPA Air Purifier Tower - 22" - Gray - AC4825E
- Potential fit
- Small bedrooms and personal workspaces
- Trade-off to resolve
- Limited CADR restricts coverage to small spaces
Product B
WINIX 5510 Air Purifier (New Generation of 5500-2 with App Support)
- Potential fit
- Medium living rooms needing allergen filtration
- Trade-off to resolve
- High-speed fan noise can be intrusive in quiet spaces
Side-by-side evidence
16 of 16 recorded specification fields shown
| Side by side |  |  |
|---|---|---|
| Buyer rating | 4.6 | 4.6 |
| Price | $124.00 | $179.99 |
| Our score | 7.3/10 | 8.2/10 |
| Ratings count | 63,635 ratings | 32,621 ratings |
| Brand | GermGuardian | WINIX |
| Best for | Small bedrooms and personal workspaces | Medium living rooms needing allergen filtration |
| Filtration capability | 8.8/10 | — |
| Effective room sizing | 6.8/10 | — |
| Noise management | 7.0/10 | 8.7/10 |
| Build and controls | 7.2/10 | — |
| Operating economy | 6.5/10 | 7.4/10 |
| Filtration Standard | — | 9.0/10 |
| AHAM Room Sizing | — | 8.2/10 |
| Controls and Smart Tech | — | 7.9/10 |
| Power Source | Corded Electric | Electric |
| Particle Retention Size | 0.1 micrometer | 0.01 micrometer |
| Wattage | 55 watts | 65 watts |
| Control Method | Touch | Touch |
| Filter Type | HEPA, Carbon, UV-C | HEPA |
| Floor Area | 743 square_feet | 1881 square_feet |
| Noise Level | 55 db | 27 db |
| Controller Type | Rotary Dial | Amazon Alexa, Button Control, Google Assistant |
| Contaminant Filtration Capability | True | High |
| Special Features | H13 Grade Filter, HEPA filter 99.97%, UV-C Light Traps Bacteria, Up to 743 sq. ft. coverage | WiFi & PlasmaWave Technology |
| Software Update Supported to Date | unknown | unknown |
| Filter Class | HEPA | HEPA |
| Model Number | AC4825E | 5510 |
| Brand Name | GermGuardian | Winix |
| Manufacture Year | Not recorded | 2024 |
| Number of Packs | Not recorded | 1 |
| Our verdict | This compact tower relies on true HEPA media, making it capable of capturing 0.3-micron particles rather than relying on loose 'HEPA-type' claims. The narrow form factor fits tight corners, but the modest CADR limits its efficacy to small rooms. Factor annual replacement filter costs into the modest upfront purchase price. | The 5510 updates a popular platform with app integration while retaining True HEPA and dedicated carbon filtration for odor control. The advertised 1,881 square foot coverage assumes only one air change per hour, meaning real-world allergy mitigation requires a room roughly a third of that size. Factor ongoing True HEPA filter replacement pricing into the multi-year cost of ownership. |
| Pros and cons |
|
|
Prices and buyer ratings are captured snapshots. A dash means the detail was not recorded, not that a feature is absent. Editorial scores are research assessments, not laboratory measurements.
Sources and limits
This page summarizes our research reviews of Amazon listings, listed specifications and captured buyer ratings. It is not a hands-on test. Scores are editorial assessments, not measured performance; prices are recorded snapshots and may change. A category can include both main products and accessories, so its overall price range is not the cost of a complete setup.
Most recent product record update: October 3, 2026. Individual records may be older; this is not a verification date for every claim. Prices on this page were read from the listings Nov 8, 2026 – Nov 13, 2026.
- Amazon listing: GermGuardian HEPA Air Purifier Tower - 22" - Gray
- Amazon listing: WINIX 5510 Air Purifier (New Generation of 5500-2
Amazon links are affiliate links. We may earn a commission on qualifying purchases, at no extra cost to you.
Comparing within a category?
Our buyer's guides show the full spec ranges and price tiers for a category, which is usually the faster way to narrow a shortlist before comparing two finalists.
Browse every category guide