Hunter HP400 Round Air Purifier with 2 Filters
- 106 square feet rated floor area
- HEPA filter, up to 99.97% of particles at 0.3 micron
- 34 dB noise level
- 2 extra filters and 3 pre-filters in the bundle
- 5 year limited warranty
- 8.2 pounds, 17 inch tall round tower
Last refreshed Sep 24, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A round HEPA tower with spare filters for one small room such as a dorm or bedroom. Airflow and clean-air delivery figures are not in the listing.
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ASIN: B0H9BKGJMHModel: HP400Category: HEPA Air Purifiers
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Overview
Placing a round tower purifier in a dorm, bedroom or home office puts an EcoSilver pre-filter and a HEPA filter to work on airborne particles. A filter replacement indicator signals when a change is due.
The reason to choose this bundle is the spare filters, which cover the first replacements without another order. The limitation is the modest rated floor area, which suits a single small room only.
Who it's for
One small room with a pet or seasonal allergens is the situation this tower handles. Owners of bigger spaces, or shoppers who compare airflow numbers, will miss those figures here.
Pros and cons
- Spare filters included in the bundle
- Quiet rated noise level
- Filter replacement indicator
- Pre-filter resists microorganism growth
- Rated for one small room only
- Clean-air delivery rating not listed
- Pre-filter count differs between specs and description
Performance notes
Air meets the pre-filter first, which catches larger particles and shields the HEPA layer behind it. The HEPA filter then captures fine particles at the stated rating. Real results depend on matching the room to the rated floor area and swapping filters when the indicator signals.
Specifications
| Brand | Hunter |
|---|---|
| Model | HP400 |
| Dimensions & fit | |
| Particle Retention Size | 0.3 micron |
| Item Dimensions D x W x H | 7.75 x 7.75 x 17 inches |
| Item weight | 8.2 pounds |
| Capacity & performance | |
| Noise Level | 34 dBhigher than 57% of 48 hepa air purifiers |
| Included components | |
| Included Components | 1 air purifier, 3 pre-filters, 2 extra filters |
| Warranty & support | |
| Warranty Description | 5 year limited |
| Other details | |
| Floor Area | 106 square feet |
| Filter Type | HEPA with EcoSilver pre-filter |
| Contaminant Filtration Capability | Dust, odors, pet dander, pollen, VOCs |
| Control Type | Touch |
Closest rivals on specs
Frequently asked questions
Is the Hunter HP400 big enough for a large living room?
The listing rates it for 106 square feet, so a larger space goes beyond that rating.
What is in the Hunter HP400 bundle?
The specs list one air purifier, three pre-filters and two extra filters. The description mentions four pre-filters, so confirm the count when it arrives.
Does it handle odors and pet dander?
The listing names dust, odors, pet dander, pollen and volatile organic compounds among the contaminants it filters.