Compare Honeywell Air Genius 5, HFD320 vs Alen BreatheSmart 35i

P1 Honeywell Air Genius 5, HFD320
P2 Alen BreatheSmart 35i

Comparison Takeaways

Honeywell Air Genius 5, HFD320

Where It Has the Edge

  • durability is 4.1 vs 1.5. Durability ranges from excellent long-term use to early rattles and motor failures. The best reports span years, but...
  • filter replacement cost is 4.6 vs 3.0. Washable filters are a major reason people buy this model. Owners repeatedly praise the savings, though some still...
  • dust removal is 4.1 vs 2.9. Dust control is one of the strongest customer themes. Filters often come out dirty and rooms need less...
  • air changes per hour is 5.0 vs 3.9. One expert praises the high air-change claim, saying it can cycle a room quickly at the rated size.

Alen BreatheSmart 35i

Where It Has the Edge

  • filter availability is 5.0 vs 1.0. Filter availability is supported by long-term brand availability and subscription mentions.
  • real-time air quality monitoring is 5.0 vs 1.0. Real-time monitoring is a major strength, with repeated praise for alerts, app graphs, and color feedback.
  • smart features is 5.0 vs 1.3. Smart features are a major strength, especially app control, sensors, and auto behavior.
  • display readability is 4.8 vs 1.2. Light and display feedback is positive, especially color-coded air quality and auto-dimming for bedrooms.
Average score
Product 1: Honeywell Air Genius 5, HFD320
3.1
Product 2: Alen BreatheSmart 35i
4.2
activated carbon filter
Product 1: Honeywell Air Genius 5, HFD320
3.0

The included carbon option can help some owners with pet or room smells, but expert reviewers criticize it as too thin for serious gas and odor removal.

Product 2: Alen BreatheSmart 35i
3.5

Optional carbon filtration is appreciated for odor and gas coverage, but expert evidence says the carbon amount is limited for serious VOC problems.

air changes per hour
Product 1: Honeywell Air Genius 5, HFD320
5.0

One expert praises the high air-change claim, saying it can cycle a room quickly at the rated size.

Product 2: Alen BreatheSmart 35i
3.9

Expert testing supports useful air changes only in smaller rooms, with quiet-speed coverage falling below average bedroom sizing.

air circulation
Product 1: Honeywell Air Genius 5, HFD320
4.3

Air movement is a quiet strength. Owners like the fan-like airflow, circulation, and ability to move a noticeable amount of air through a room.

Product 2: Alen BreatheSmart 35i
No score yet
air purification performance
Product 1: Honeywell Air Genius 5, HFD320
4.0

Most owners say the Air Genius 5 makes rooms feel fresher and cleaner, with several allergy and smoke users noticing quick improvement. Expert testing is split, with one lab calling its pollutant-clearing speed weak for the price.

Product 2: Alen BreatheSmart 35i
4.6

Most reviewers say the purifier improves air quality or works well, though one customer reported poor cleaning performance.

air quality sensor accuracy
Product 1: Honeywell Air Genius 5, HFD320
No score yet
Product 2: Alen BreatheSmart 35i
5.0

Experts and customers consistently praise the sensor as responsive, precise, and aligned with external measurements.

allergen reduction
Product 1: Honeywell Air Genius 5, HFD320
4.9

Allergy relief is the biggest customer win: many users mention less congestion, sneezing, eye irritation, or better comfort around pollen, dust, cats, and dogs.

Product 2: Alen BreatheSmart 35i
5.0

Allergy-related feedback is strongly positive, including customer relief and third-party asthma/allergy suitability evidence.

app connectivity
Product 1: Honeywell Air Genius 5, HFD320
1.0

App control is absent, which reviewers mark as a drawback compared with similarly priced smart purifiers.

Product 2: Alen BreatheSmart 35i
4.3

The app is usually praised for control and monitoring, but one expert/customer thread flags setup or registration friction.

auto mode performance
Product 1: Honeywell Air Genius 5, HFD320
1.0

Auto mode is a clear miss. Reviewers who expect sensors and automatic speed adjustment call its absence a drawback.

Product 2: Alen BreatheSmart 35i
4.1

Auto mode is praised when the laser sensor responds quickly, but one customer reported a defective unit that did not ramp up.

breathing relief
Product 1: Honeywell Air Genius 5, HFD320
5.0

Breathing relief is a frequent customer benefit, especially for allergies, smoke, dust, pets, asthma, and COPD-adjacent household needs.

Product 2: Alen BreatheSmart 35i
No score yet
build quality
Product 1: Honeywell Air Genius 5, HFD320
3.5

Build quality is polarizing: some reviewers call it robust or well made, while detractors describe cheap internals and disappointing construction.

Product 2: Alen BreatheSmart 35i
3.3

Build quality is split: HouseFresh praises it, while Live Science and customers cite plastic, cheap feel, or rattling.

CADR rating
Product 1: Honeywell Air Genius 5, HFD320
3.0

CADR is respectable on paper for a roughly 250 sq. ft. unit, but one expert found real-world clearing much slower than expected from the rating.

Product 2: Alen BreatheSmart 35i
4.2

CADR evidence supports capable small-room performance, not large-space strength.

child lock
Product 1: Honeywell Air Genius 5, HFD320
No score yet
Product 2: Alen BreatheSmart 35i
4.8

Child lock is liked by reviewers who want to prevent accidental control changes.

customer support
Product 1: Honeywell Air Genius 5, HFD320
1.8

Support experiences skew negative in customer reviews, with slow, unhelpful responses and return-shipping frustration offset by one successful replacement story.

Product 2: Alen BreatheSmart 35i
2.5

Customer support evidence is mixed, with one defective-unit response but another customer calling AI support useless.

design and appearance
Product 1: Honeywell Air Genius 5, HFD320
4.3

Design reactions are mostly positive from owners who like the sleek black tower, while experts think the styling is familiar and somewhat dated.

Product 2: Alen BreatheSmart 35i
4.7

Design feedback is mostly positive for compact, unobtrusive looks, with one expert less impressed by the plastic body.

display readability
Product 1: Honeywell Air Genius 5, HFD320
1.2

Display brightness is the most repeated design complaint. The blue control lights often stay on, making the unit frustrating in dark bedrooms.

Product 2: Alen BreatheSmart 35i
4.8

Light and display feedback is positive, especially color-coded air quality and auto-dimming for bedrooms.

documentation quality
Product 1: Honeywell Air Genius 5, HFD320
4.0

Documentation gets a small positive note for the quick access guide and reset instructions, though customer reset confusion suggests it is not flawless.

Product 2: Alen BreatheSmart 35i
No score yet
durability
Product 1: Honeywell Air Genius 5, HFD320
4.1

Durability ranges from excellent long-term use to early rattles and motor failures. The best reports span years, but the bad reports are sharp.

Product 2: Alen BreatheSmart 35i
1.5

Durability concerns center on rattling after months and flimsier plastic housing.

dust removal
Product 1: Honeywell Air Genius 5, HFD320
4.1

Dust control is one of the strongest customer themes. Filters often come out dirty and rooms need less dusting, though a few owners doubt the inner filter is catching enough.

Product 2: Alen BreatheSmart 35i
2.9

Dust evidence is mixed: experts measured dust-related removal, while one customer said dust buildup did not improve.

ease of use
Product 1: Honeywell Air Genius 5, HFD320
4.8

Setup and daily operation are repeatedly called simple, with out-of-box use and clear controls earning praise.

Product 2: Alen BreatheSmart 35i
4.9

Setup and controls are repeatedly described as easy, intuitive, or plug-and-use.

energy efficiency
Product 1: Honeywell Air Genius 5, HFD320
3.8

Energy use is generally viewed as favorable, especially compared with filter-heavy alternatives. Expert testing is more nuanced, noting good max-speed efficiency but weaker low-speed efficiency.

Product 2: Alen BreatheSmart 35i
4.3

Efficiency evidence is moderate: experts place energy cost mid-pack, while one customer calls it quiet and efficient.

fan speed options
Product 1: Honeywell Air Genius 5, HFD320
3.0

Reviewers mention fan speed options in connection with day-to-day use, with sentiment depending on whether the feature helps comfort or creates extra hassle.

Product 2: Alen BreatheSmart 35i
4.0

Fan-speed evidence is factual but positive enough in expert context because four speeds support usable control.

filter availability
Product 1: Honeywell Air Genius 5, HFD320
1.0

Replacement availability is a pain point for the permanent filter, with customers saying factory replacements are hard or impossible to buy.

Product 2: Alen BreatheSmart 35i
5.0

Filter availability is supported by long-term brand availability and subscription mentions.

filter life
Product 1: Honeywell Air Genius 5, HFD320
1.5

The permanent filter lowers replacement costs, but long-term efficiency is questioned after repeated washing or years of use.

Product 2: Alen BreatheSmart 35i
3.6

Filter life is polarized: experts cite 6-12 months, some customers like long life, and others saw dirty filters in four months.

filter replacement alarm
Product 1: Honeywell Air Genius 5, HFD320
2.2

The filter indicator is useful in theory, yet reset problems appear repeatedly in customer complaints.

Product 2: Alen BreatheSmart 35i
No score yet
filter replacement cost
Product 1: Honeywell Air Genius 5, HFD320
4.6

Washable filters are a major reason people buy this model. Owners repeatedly praise the savings, though some still dislike replacing carbon pre-filters or finding parts later.

Product 2: Alen BreatheSmart 35i
3.0

Filter replacement cost is one of the clearest concerns, though a few customers accept it because replacements are less frequent.

filter stages
Product 1: Honeywell Air Genius 5, HFD320
No score yet
Product 2: Alen BreatheSmart 35i
4.7

Filter customization and multiple filter types are praised by expert reviewers.

handle design
Product 1: Honeywell Air Genius 5, HFD320
2.0

Portability is helped by the tower shape, but one owner thought the hand grip needed better texture to prevent slipping.

Product 2: Alen BreatheSmart 35i
5.0

Handle design is praised because it helps make the unit easy to move.

HEPA filtration
Product 1: Honeywell Air Genius 5, HFD320
2.7

Reviewers like the washable filter idea but repeatedly note it is not traditional HEPA. Expert comparisons generally prefer true HEPA for long-term fine-particle filtration.

Product 2: Alen BreatheSmart 35i
4.5

HEPA filtration is evaluated positively in expert discussion of particle and allergy coverage.

indicator lights
Product 1: Honeywell Air Genius 5, HFD320
No score yet
Product 2: Alen BreatheSmart 35i
4.5

The filter indicator is praised because it reduces guessing about replacement timing.

initial chemical smell
Product 1: Honeywell Air Genius 5, HFD320
2.0

Initial smell is a real complaint. Some units give off strong plastic, chemical, ozone-like, or pre-filter odors that can last days or longer.

Product 2: Alen BreatheSmart 35i
No score yet
ionization feature
Product 1: Honeywell Air Genius 5, HFD320
2.0

The ionization/electrostatic design worries some users because of shocks, ozone questions, and lack of clarity about how the feature works.

Product 2: Alen BreatheSmart 35i
No score yet
listing accuracy
Product 1: Honeywell Air Genius 5, HFD320
1.0

Listing accuracy comes up negatively when buyers feel the advertised dimensions, warranty branding, or touch controls do not match expectations.

Product 2: Alen BreatheSmart 35i
No score yet
maintenance ease
Product 1: Honeywell Air Genius 5, HFD320
4.0

Maintenance is usually described as easy to understand, but not always pleasant. Some owners say washing and drying is simple, while others report filters that never seem fully clean.

Product 2: Alen BreatheSmart 35i
5.0

Maintenance is praised for easy filter access, low-maintenance use, and a strong filter-lock design.

noise level
Product 1: Honeywell Air Genius 5, HFD320
3.7

Noise opinions split by speed and longevity. Many owners call it quiet or sleep-friendly, while others report high-speed loudness, rattles, hums, clicks, or bearing noise.

Product 2: Alen BreatheSmart 35i
4.1

Noise feedback is strongly positive overall, but a few customers report weird sounds or rattling.

odor reduction
Product 1: Honeywell Air Genius 5, HFD320
4.5

Odor reduction is highly context-dependent. Many owners like it for bedrooms, kitchens, pets, smoke, or ammonia, while expert reviews say the thin carbon option struggles with tougher odors.

Product 2: Alen BreatheSmart 35i
5.0

Odor reduction is one of the strongest customer-backed benefits, especially for pets, smoke odor, cooking, and basement smells.

oscillation
Product 1: Honeywell Air Genius 5, HFD320
3.9

Oscillation is usually liked for circulating air and doubling as a fan, but it also creates one more part that can fail or start making noise.

Product 2: Alen BreatheSmart 35i
No score yet
overall satisfaction
Product 1: Honeywell Air Genius 5, HFD320
4.7

Overall satisfaction is high among many owners who want fresher air and low filter costs, but serious durability complaints keep the consensus from being cleanly positive.

Product 2: Alen BreatheSmart 35i
4.1

Overall satisfaction is high across experts and most customers, offset by a few sharp negative experiences.

ozone-free operation
Product 1: Honeywell Air Genius 5, HFD320
4.0

Ozone-free confidence is limited by the ifD/ionization discussion. One source treats certification as reassuring, while others remain concerned about ozone or shocks.

Product 2: Alen BreatheSmart 35i
No score yet
particle removal effectiveness
Product 1: Honeywell Air Genius 5, HFD320
4.0

Particle results are mixed: some testers and owners saw visible PM or dust reductions, while HEPA-focused reviewers questioned how low it can drive fine particle levels over time.

Product 2: Alen BreatheSmart 35i
4.7

Particle removal is strongly supported by expert test results, including near-complete removal in timed tests.

pet dander removal
Product 1: Honeywell Air Genius 5, HFD320
5.0

Pet allergy and dander comments are positive where owners use it around cats or dogs, though the benefit is usually described through allergy relief rather than lab measurement.

Product 2: Alen BreatheSmart 35i
4.9

Pet dander and animal-related feedback is positive, especially in homes with dogs and cats.

pet hair capture
Product 1: Honeywell Air Genius 5, HFD320
4.8

Pet hair capture gets strong owner support, especially from dog owners who find the pre-filter filling with hair quickly.

Product 2: Alen BreatheSmart 35i
No score yet
PM2.5 detection
Product 1: Honeywell Air Genius 5, HFD320
No score yet
Product 2: Alen BreatheSmart 35i
5.0

PM2.5 monitoring is praised through app data and sensor feature evidence.

pollen removal
Product 1: Honeywell Air Genius 5, HFD320
4.5

Pollen sufferers often describe meaningful relief indoors, including fewer spring symptoms and cleaner upstairs or bedroom air.

Product 2: Alen BreatheSmart 35i
3.6

Pollen evidence is mixed, with expert/customer positives but one customer saying spring pollen did not improve.

portability
Product 1: Honeywell Air Genius 5, HFD320
5.0

Reviewers mention portability in connection with day-to-day use, with sentiment depending on whether the feature helps comfort or creates extra hassle.

Product 2: Alen BreatheSmart 35i
5.0

Portability is repeatedly praised because the unit is light and easy to move.

power consumption
Product 1: Honeywell Air Genius 5, HFD320
3.8

Measured power draw is low to moderate, with reviewers citing roughly light-bulb-level consumption or a modest monthly bill.

Product 2: Alen BreatheSmart 35i
3.0

Power consumption is acceptable in expert testing but one customer complains it raises the bill.

pre-filter quality
Product 1: Honeywell Air Genius 5, HFD320
2.0

The pre-filter is useful for larger dust and hair, but reviewers dislike that the washable pre-filter and carbon filter cannot be used together.

Product 2: Alen BreatheSmart 35i
No score yet
real-time air quality monitoring
Product 1: Honeywell Air Genius 5, HFD320
1.0

Real-time air quality monitoring is absent, and expert reviewers treat that as part of the product’s dated feature set.

Product 2: Alen BreatheSmart 35i
5.0

Real-time monitoring is a major strength, with repeated praise for alerts, app graphs, and color feedback.

reliability
Product 1: Honeywell Air Genius 5, HFD320
1.2

Reliability is the biggest long-term concern. Multiple owners report rattles, fan motors, bearings, oscillation failures, or declining performance within months to a year or two.

Product 2: Alen BreatheSmart 35i
1.8

Reliability evidence is negative where customers report odd noises, defects, or quitting use.

remote control
Product 1: Honeywell Air Genius 5, HFD320
1.0

Remote-control shoppers should look elsewhere; reviewers note this model does not include one.

Product 2: Alen BreatheSmart 35i
4.5

Remote control is viewed positively through app and Wi-Fi control evidence.

room coverage
Product 1: Honeywell Air Genius 5, HFD320
3.2

Most room-size guidance clusters around bedrooms, offices, and smaller to mid-size rooms. Several reviewers caution against expecting it to handle larger open areas.

Product 2: Alen BreatheSmart 35i
3.3

Room coverage is best for small rooms; reviewers repeatedly caution against expecting large-room performance.

room temperature mixing
Product 1: Honeywell Air Genius 5, HFD320
2.0

A few users notice a cooling sensation from the airflow. It is comfort from moving room-temperature air, not actual cooling performance.

Product 2: Alen BreatheSmart 35i
No score yet
safety certifications
Product 1: Honeywell Air Genius 5, HFD320
4.0

Safety certifications are a positive expert note, especially CARB and Energy Star status.

Product 2: Alen BreatheSmart 35i
4.0

Safety certification evidence is positive but limited to one expert discussion.

safety concerns
Product 1: Honeywell Air Genius 5, HFD320
1.6

Safety concerns center on static shocks and ionization. A few users report startling shocks when handling filters or sitting in the airflow.

Product 2: Alen BreatheSmart 35i
No score yet
scheduling options
Product 1: Honeywell Air Genius 5, HFD320
4.0

The timer is useful for simple shutoff scheduling, but one customer wanted recurring overnight scheduling and called the current behavior limited.

Product 2: Alen BreatheSmart 35i
4.5

Scheduling is praised in app-focused expert/video reviews.

settings retention
Product 1: Honeywell Air Genius 5, HFD320
1.0

A few owners describe control or reset behavior that feels glitchy, including settings or indicators behaving unpredictably.

Product 2: Alen BreatheSmart 35i
No score yet
size and footprint
Product 1: Honeywell Air Genius 5, HFD320
4.0

The tower footprint is compact for many rooms, though some shoppers found the unit shorter or heavier than expected.

Product 2: Alen BreatheSmart 35i
5.0

Customers and experts like the compact footprint, especially for bedrooms, studios, and unobtrusive placement.

sleep mode
Product 1: Honeywell Air Genius 5, HFD320
4.1

Sleep use is strong when the fan is behaving and the lights are covered. The quiet setting gets praise, but bright top controls undermine bedroom use for many owners.

Product 2: Alen BreatheSmart 35i
4.7

Sleep mode and bedroom use are reviewed positively because the unit is quiet and can dim lights.

sleep quality benefit
Product 1: Honeywell Air Genius 5, HFD320
4.6

Several allergy sufferers link the purifier to better sleep, less congestion, and quieter overnight use, but bright lights can spoil the bedroom experience.

Product 2: Alen BreatheSmart 35i
5.0

Sleep benefits are strongly positive in the few reviews that mention better sleep or breathing at night.

smart features
Product 1: Honeywell Air Genius 5, HFD320
1.3

Smart features are thin for the price. Expert reviewers repeatedly mention no app, remote, sensors, or Wi-Fi-style controls.

Product 2: Alen BreatheSmart 35i
5.0

Smart features are a major strength, especially app control, sensors, and auto behavior.

smoke removal
Product 1: Honeywell Air Genius 5, HFD320
4.4

Smoke performance earns praise from many wildfire and cigarette-smoke users, but experts warn that odor/VOC treatment is not as strong as particle movement.

Product 2: Alen BreatheSmart 35i
4.3

Smoke evidence is strong in expert testing and a customer fire-smoke odor account, but one defective-unit review is negative.

touch control responsiveness
Product 1: Honeywell Air Genius 5, HFD320
2.0

Touch controls divide users. Some like the modern panel, while others prefer physical buttons or say the advertised touch experience is not worth paying extra for.

Product 2: Alen BreatheSmart 35i
No score yet
true HEPA filter
Product 1: Honeywell Air Genius 5, HFD320
1.3

The lack of a true HEPA filter is a repeated caveat, especially from expert reviewers and customers who are skeptical of the electrostatic design.

Product 2: Alen BreatheSmart 35i
No score yet
value for money
Product 1: Honeywell Air Genius 5, HFD320
2.9

Value depends on priorities. Buyers who prize washable filters see strong long-term savings, while experts and dissatisfied owners think the price is too high for the filtration and durability tradeoffs.

Product 2: Alen BreatheSmart 35i
3.4

Value is mixed: many think it is worth buying, while experts and one customer stress high upfront and ownership costs.

VOC reduction
Product 1: Honeywell Air Genius 5, HFD320
1.8

VOC and gas removal are weak points in expert coverage because the carbon material is thin and optional. It may help lightly, but reviewers do not treat it as a strong VOC purifier.

Product 2: Alen BreatheSmart 35i
3.6

VOC evidence is mixed: monitoring and some detection are praised, while experts warn carbon is limited for serious VOC issues.

warranty coverage
Product 1: Honeywell Air Genius 5, HFD320
3.2

The five-year warranty sounds attractive, but owner confidence depends heavily on who handles the claim and whether shipping or one-time replacement limits apply.

Product 2: Alen BreatheSmart 35i
5.0

Warranty coverage is praised, especially the lifetime warranty tied to OEM filter use.

washable pre-filter
Product 1: Honeywell Air Genius 5, HFD320
4.5

The washable filter system is widely liked for saving money and reducing disposable filter purchases, even when cleaning it is less convenient than replacing HEPA media.

Product 2: Alen BreatheSmart 35i
No score yet