Our Verdict
Coway Wins
It provides quantifiable room air purification with a CADR of 248 for smoke and covers 387.5 sq ft for 5 ACH. Choose PuroAir for integrated odor control in a self-cleaning litter box for cats up to 25 lbs.
Spec Comparison
13 specs compared
| Specification |  |  |
|---|---|---|
| Price | $317 | $279 |
| Rating | 4.4(7.8k) | 4.6(15.9k) |
| Cadr Smoke | 248 | — |
| Coverage Sq Ft | 387.5 | — |
| Filter Type | True HEPA | — |
| Smart Sensor | Yes | — |
| Weight | — | 24 lbs |
| Sensor Type | — | OmniSense |
| Model Number | — | Puro Air 240 |
| WiFi | — | Yes |
| Dimensions | — | 22" × 30" × 27" |
| Max Pet Weight | — | 25 lbs |
| App Subscription | — | Free |
| Cleaning Cycle | — | 7 min |
| Waste Capacity | — | 5.5L |
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Pros & Cons
Quick overview of strengths and weaknesses
Coway Air Purifiers
- Covers 387 sq ft for 5 air changes per hour.
- Removes 99.999% of 0.01-micron particles.
- Reduces 99% of volatile organic compounds.
- Automatically adjusts fan speed to air quality.
- Requires periodic replacement of internal filters.
- Advertised coverage exceeds typical 5 ACH standard.
PuroAir 240 HEPA
- Auto-cleans after each use
- WiFi app monitoring
- Fits cats up to 25 lbs
- Low noise operation
- Large footprint
- High upfront cost
- Requires specific litter
Frequently Asked Questions
Common questions about this comparison
Which product is better for general room air purification?
Winner: Coway. It's a dedicated air purifier offering a 248 CADR for smoke and covering 387.5 sq ft with 5 air changes per hour. PuroAir's primary function is a self-cleaning litter box with integrated air filtration for pet odors.
What is the main difference in their air purification capabilities?
Coway provides specific performance with a CADR of 248 for smoke and 5 ACH coverage for 387.5 sq ft. PuroAir features a HEPA filter system primarily for odor control within its self-cleaning litter box, without comparable room air purification metrics.
Is either product better for pet owners?
PuroAir is explicitly designed for pet owners as a self-cleaning litter box that fits cats up to 25 lbs and controls odors. Coway is a general air purifier effective against pet dander and odors in the room, but not a litter box.
What are the key differences in their overall design?
Coway is a standalone room air purifier with a smart sensor. PuroAir is a large, self-cleaning litter box with an integrated HEPA air filter for odor reduction, featuring WiFi app monitoring and auto-cleaning.
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