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This Honeywell HPA100 review looks at a small, simple True HEPA purifier built for bedrooms, offices and dorm rooms. In short, it is a solid pick for a room of about 155 square feet if you want plain HEPA filtration without apps or sensors. However, it has no auto mode, and Honeywell’s own store now lists it as discontinued, so check stock and price before you commit.
We did not test the HPA100 hands-on. Instead, this review is based on Honeywell’s published specs, its AHAM Verifide ratings, its ENERGY STAR status and what owners commonly report. You can read more about our approach on our how we research and rate purifiers page.
Honeywell HPA100 review: the verdict
The HPA100 does one job well. It pulls room air through a pre-filter and a True HEPA filter, and it has the certified numbers to back up its room-size claim. Honeywell rates it for 155 square feet at 4.8 air changes per hour. That is a strong standard for allergy sufferers, because the air in the room is filtered almost five times each hour.
On the other hand, it is a basic machine. You get three speeds plus Turbo, a timer and a filter reminder. There is no air quality sensor, no auto mode and no app. If you want a quiet, set-and-forget bedroom unit, that may be fine. If you want smart features, look elsewhere.
Honeywell HPA100 review: key specs
The table below lists only values published by Honeywell or verified through AHAM. Where Honeywell does not publish a figure, we say so.
| Spec | Honeywell HPA100 |
|---|---|
| CADR (smoke / dust / pollen) | 100 / 106 / 100 (AHAM Verifide) |
| Recommended room size | 155 sq ft (4.8 air changes per hour) |
| Filter type | Carbon pre-filter (A) plus True HEPA filter (R) |
| HEPA claim | Captures up to 99.97% of particles 0.3 microns and larger |
| Cleaning levels | Low, medium, high, plus Turbo |
| Timer | Auto-off at 2, 4 or 8 hours |
| Noise range | Not published by the manufacturer |
| Power draw | Not published by the manufacturer |
| Dimensions | 13.54 x 8.9 x 13.94 in |
| Weight | 7.74 lb |
| Smart features | None (no app, no air quality sensor) |
| Certifications | AHAM Verifide, ENERGY STAR |
| Filter life | Pre-filter every 3 months; HEPA filter once a year |
| Warranty | 5-year limited |
For the full listing, see the official Honeywell HPA100 product page.
Honeywell HPA100 review: strengths
- Certified performance. The CADR figures are AHAM Verifide, so the 155 square foot rating is not just a marketing claim.
- High air change rate. Sizing at 4.8 air changes per hour suits people with allergies or asthma.
- Real HEPA, no gimmicks. There is no ionizer or UV lamp, so ozone is not a concern.
- Energy efficient. It has earned the ENERGY STAR label.
- Long warranty. A 5-year limited warranty is generous for a small purifier.
- Easy to place. At under 8 pounds and about 14 inches tall, it fits on a desk, dresser or floor.
Limitations
No Honeywell HPA100 review would be complete without its trade-offs. Most of them come from its small size and basic design.
- No auto mode. Without a sensor, you must choose the speed yourself.
- Turbo is loud. Owners often say the top setting is too loud for sleep. Honeywell does not publish decibel figures.
- Small coverage. It is not meant for living rooms or open-plan spaces.
- Light carbon layer. The thin carbon pre-filter helps with mild odors, but it will not handle heavy smoke smells.
- Availability. Honeywell’s store lists the HPA100 as discontinued, so prices at other retailers can vary.
What owners commonly report
Owner feedback lines up well with the published specs. Many buyers say the unit noticeably reduces dust on furniture and eases morning allergy symptoms in a bedroom. Others like that the controls are simple enough for anyone in the house to use.
The complaints are also consistent. Some owners find Turbo too loud for sleep, so they run it on Turbo during the day and switch to low at night. A few wish it had an auto mode, and others note that filter changes add a small yearly cost. For this Honeywell HPA100 review, we weighed that feedback alongside the certified ratings rather than in place of them.
One tip comes up often. Place the purifier a little away from walls and keep the bedroom door closed while it runs. That way, the 4.8 air changes per hour apply to the room you actually sleep in. In short, the takeaway from this Honeywell HPA100 review is that the unit delivers what its label promises, as long as the room fits the rating.
Who it suits and who should skip it
The HPA100 suits a bedroom, home office, nursery or dorm room of up to about 155 square feet. It is also a good fit if you want simple buttons and nothing to connect to Wi-Fi.
Skip it if your room is larger, if you want an auto mode that reacts to air quality, or if you need very quiet operation at high speed. In those cases, a newer unit with a sensor will serve you better.
Filters, running cost and maintenance
The HPA100 uses two filter types. The carbon pre-filter (Filter A, part HRF-AP1) should be replaced every three months. The True HEPA filter (Filter R, part HRF-R1) should be replaced once a year.
Honeywell’s store lists the HRF-R1 HEPA filter at $36.95 and the HRF-AP1 pre-filter at $15.95. It also sells the HRF-ARVP100 combo pack, which holds one HEPA filter and four pre-cut pre-filters. That pack covers a full year. Honeywell has listed it at $69.95, and it is often discounted. As a result, a year of filters typically costs roughly $40 to $70.
Maintenance is simple. The filter indicator tells you when to swap filters, and you reset it after each change. Keep the intake clear of walls and furniture so air can flow freely.
For a step up in size from the same family, read our Honeywell HPA300 review and the HPA300 replacement filter guide. You can also browse all Honeywell air purifiers.
Alternatives to consider
- Honeywell HPA300: the larger sibling for living rooms and bigger spaces.
- Levoit Core 300: a compact, quieter option for small rooms.
- Coway Airmega AP-1512HH: adds an auto mode and air quality sensor.
- Germ Guardian AC4825: a budget tower for small spaces.
Honeywell HPA100 review: FAQ
How big a room can the Honeywell HPA100 clean?
Honeywell rates it for 155 square feet at 4.8 air changes per hour. That rating is based on its AHAM Verifide smoke CADR of 100.
How often should I replace the HPA100 filters?
Replace the carbon pre-filter every three months and the True HEPA filter once a year. Heavy use, pets or smoke may shorten those intervals.
Does the Honeywell HPA100 produce ozone?
No. It uses mechanical HEPA filtration and has no ionizer or UV lamp, so it does not produce ozone by design.
To sum up this Honeywell HPA100 review, it is a dependable, certified small-room purifier with low filter costs and a long warranty. Therefore, it remains worth buying for a bedroom if you can find it at a fair price and do not need smart features.
