PuroAir 400 HEPA Air Purifier with Filter
- 2,000 sq ft cleaned in one hour, per listing
- 3-layer filtration: pre-filter, HEPA, activated carbon
- 99.9% of pollutants, particles to 0.1 micron
- 31 dB noise level, sleep mode
- Smart particle sensor raises power automatically
- 1 Replacement Filter in the bundle
- CARB, ETL, ISO, UL, Energy Star certified
- 2 year warranty
Updated 24 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A large room HEPA purifier with carbon for smoke and odors, an auto sensor and a spare filter in the box. Wattage, dimensions and weight are not listed.
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ASIN: B0DP5L77TVModel: 400Category: HEPA Air Purifiers
Overview
Running quietly around the clock is how this PuroAir purifier is meant to be used, with a particle sensor that raises fan power when the air turns dirty. Air passes a pre-filter, a HEPA layer and activated carbon for dust, pollen, smoke and VOCs.
Carbon plus HEPA in one filter stack targets wildfire smoke and cooking odors as well as allergens, and the bundled spare delays the first filter purchase. Missing size, weight and power figures make placement planning guesswork.
Who it's for
Open living areas, bedrooms and homes affected by wildfire smoke or pets suit its carbon and HEPA stack. Shoppers who want app control will find touch controls only.
Pros and cons
- Spare filter included
- Carbon layer for smoke and odors
- Auto sensor adjusts power
- Quiet sleep mode
- Touch control only, no app listed
- Dimensions and weight not listed
Performance notes
How fast a room clears depends on airflow through the three layers: the pre-filter catches hair and lint, the HEPA layer traps fine particles and the carbon adsorbs gases. The sensor raises the fan when particles rise, so continuous running in a closed room gives the most even results.
Specifications
| Brand | PuroAir |
|---|---|
| Model | 400 |
| Dimensions & fit | |
| Particle Retention Size | 0.1 micron |
| Capacity & performance | |
| Noise Level | 31 dB |
| Included components | |
| Included Components | Air purifier, 1 replacement filter |
| Warranty & support | |
| Warranty Description | 2 year warranty |
| Other details | |
| Floor Area | 2,000 square feet |
| Filter Type | HEPA |
| Filter Class | 3-layer: pre-filter, HEPA, activated carbon |
| Contaminant Filtration Capability | Cigarette smoke, dust, odors, pet dander, pollen, VOCs, wildfire smoke |
| Control Type | Touch control |
| Special Features | Auto air sensor, sleep mode |
| Specification Met | CARB, ETL, ISO, UL, Energy Star certified |
Frequently asked questions
Can the PuroAir 400 clean an open plan space?
The listing says it cleans rooms up to 2,000 sq ft in one hour, based on typical residential ventilation rates. Very open layouts with high airflow may take longer.
Does the PuroAir 400 filter smoke?
Yes. The activated carbon layer and HEPA filter target cigarette and wildfire smoke, odors and VOCs, per the specs.
Is there an app for the PuroAir 400?
No app is listed. Control is by touch panel, with an automatic sensor and sleep mode.