Compare LG PuriCare 360 vs Alen BreatheSmart 35i

Odor-focused filtration gets good marks, especially around kitchen smells and harmful gases. Buyers liked that the deodorizing layer works alongside the main particle filter rather than feeling like an afterthought.

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

The movable top outlet is useful when it oscillates and pushes air across the room. Expert feedback treats the 70-degree swing as one of the more distinctive airflow controls.

Air change frequency drew direct praise from a customer who felt the unit refreshed the room at a satisfying pace. This was not a heavily discussed metric, but the available feedback is positive.

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

Reviewers liked the way the 360 design and booster fan move clean air around the room. Several comments describe air reaching corners, flowing broadly, or improving the feel of the whole space.

Dry-air comfort is a limitation rather than a strength. One expert preferred a Dyson humidifying model for dry months, making the LG better suited to purification than humidity support.

Most reviewers say the LG noticeably improves indoor air and performs strongly in everyday rooms. A few use cases, such as 3D printing fumes or lingering dust in a large home, were less convincing.

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

The sensor usually impressed reviewers by reacting to cleaning products, cooking, odors, and changing air quality. One smoke-related review found detection slow, so it is not flawless.

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

Allergy-related comments are very favorable, with buyers describing less sneezing, cleaner-feeling air, and even major relief at home. This is one of the clearest practical benefits in the reviews.

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

The app is polarizing: happy users found remote control and monitoring convenient, while others struggled with setup, QR pairing, or repeated connection failures. Smart-control value depends heavily on Wi-Fi setup success.

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

Auto mode is a major convenience win when it reacts to cooking, dust, or changing air quality and then settles back down. Reviewers repeatedly describe it as a set-and-forget feature.

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

Several users connect the purifier with easier breathing, asthma support, or sinus relief. A chemical-smell complaint cuts the other direction, showing that filter odor can ruin the experience for sensitive users.

Build impressions are generally strong, with buyers calling it a quality LG product and praising good construction. One review disliked the manufacturing origin, but that was an outlier.

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

CADR feedback is lukewarm in the expert review that discussed it directly. The purifier may feel premium, but those numbers were described as merely average for the price.

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

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

Arrival condition is mixed. One buyer praised the packaging, while another received a faulty device and never got a working unit after repair.

Controls are serviceable but not universally loved. Some buyers liked the soft-touch keypad, while experts and customers found certain controls unintuitive or hard to see.

Customer support feedback is split sharply. One customer called it responsive, but several negative reviews describe unanswered requests or unresolved service problems.

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

The design is a strength for many buyers, with praise for the modern white look and how it fits into living spaces. Its attractive shape helps offset the appliance-like size.

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

Indicator readability is mixed. Color-coded air quality is easy to understand, but one customer and one expert complained about dim or incomplete light controls.

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

Documentation drew criticism from a buyer trying to connect Wi-Fi. The manual did not clearly explain the setup path, forcing them to search elsewhere.

Longer-term reliability looks good in a few brief owner comments, including a one-year positive report. The main counterweight is the faulty-device repair case.

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

Dust removal is usually praised, especially by allergy sufferers and users monitoring dirty air. One buyer expected dog hair and lint pickup and was disappointed, and another still had dust in a large home.

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

Basic setup and daily operation are usually easy, especially when users plug it in, start auto mode, and leave it alone. App setup is the main thing that complicates the experience.

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

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

Fan settings are appreciated by buyers who like having optional modes and speed control. Turbo can be loud, but high and auto settings often remain usable.

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

Replacement-filter availability is a recurring weak spot. Buyers complained that LG did not offer filters directly or that replacements were hard to find.

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

Filter life earns both praise and frustration. Some owners say the filter lasts longer than expected, while another saw the remaining-life indicator drop quickly after only a few months.

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

Replacement filters are considered expensive and sometimes hard to buy. This is one of the most practical ownership-cost complaints.

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

Filtration quality is widely praised, especially the multi-stage setup with pre-filter, HEPA, and deodorizing layers. Reviewers describe it as a serious system rather than a simple fan with a filter.

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

Formaldehyde reduction appears in one reviewed Safe Plus/deodorization filter discussion. It is presented as part of harmful-gas removal rather than a frequently tested buyer experience.

The missing built-in handle is a notable ergonomic complaint. A buyer liked the cleaning power but said moving the unit would be much easier with a handle.

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

HEPA-related feedback is mostly positive, tied to clean, fresh air and strong filtration. One negative owner review blamed the HEPA filter for a strong chemical smell.

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

Many buyers like the color light because it makes air quality easy to understand at a glance. The main drawback is that some top-panel controls or lights are hard to see or fully turn off.

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

Initial or filter-related smell is a real split. One user appreciated the lack of plastic odor, while others reported strong chemical or moldy smells that made the purifier unusable.

Ionization is treated as a health-oriented extra in video and article reviews. Reviewers present it as useful for reducing airborne germs and viruses, though it is discussed less than core filtration.

Listing accuracy is mixed. One buyer said the unit was exactly as advertised, while another said it was not as described and did not connect to Wi-Fi.

Maintenance is usually described as easy, especially filter access, cleaning, and replacement. Even brief customer reviews highlight simple filter handling.

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

Quiet operation is one of the strongest points across the review set. Most owners find it whisper-quiet or barely noticeable, though turbo or Clean Booster mode can get loud.

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

Odor reduction is usually excellent for cooking, pets, smoke smells, and household odors. A handful of negative reviews say it failed on odor problems or created an unpleasant smell itself.

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

Overall satisfaction is high among most customers, with many saying they love it, would buy again, or bought another. Dissatisfied owners tend to focus on smart-feature failures, odor, service, or value.

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

Particle removal is supported by expert testing and customer comments about fewer particulates indoors. The strongest praise is tied to the 360-degree filter design and high-efficiency particle capture.

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

Pet-related particle pickup is mixed. One user liked seeing pet dander pulled from the air, while another said purifier videos overpromise dog-hair and lint removal.

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

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

Pollen feedback is positive but limited. A buyer noticed the purifier respond in real time when windows were open on a high-pollen day.

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

Portability depends on the model and user. One buyer found it lightweight enough to move between rooms, while others found the larger unit awkward and heavy.

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

Power use gets limited but mixed comments. One buyer worried high speed would use a lot of electricity, while another liked that app control avoids running it all day.

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

Real-time monitoring is a standout smart feature when it works. Reviewers like seeing color changes, history, alerts, and live air-quality responses to cooking or dusty conditions.

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

Reliability is mixed. Some buyers trust LG and call the product dependable, while the failed repair case is a serious negative signal.

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

The physical remote is a useful fallback when app control fails. An expert said it replicates most functions, though light control was incomplete.

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

The repair/replacement experience can be poor when something goes wrong. One owner waited through repair only to receive a product that still did not function properly.

Room coverage is generally praised for large, open rooms and whole-apartment use. One expert review pushed back, saying its rated coverage looked small for such a big premium purifier.

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

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

Scheduling is a useful app feature for owners who want cleaner air at specific times. Reviewers liked setting it off at night or scheduling operation from the ThinQ app.

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

Size is the major physical tradeoff. Some buyers say it fits fine or looks good, but many call it big, bulky, or larger than expected.

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

Sleep mode and nighttime use are praised because the unit can run very quietly and turn off distracting lights. This makes it workable in bedrooms for many users.

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

Sleep-related comfort is positive in the few reviews that mention it. Quiet operation and light control made it easy to use overnight or near light sleepers.

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

Smart features are useful when stable, offering history, scheduling, remote control, and monitoring. The same feature set becomes a liability for buyers who hit app or Wi-Fi glitches.

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

Smoke handling is mixed. One customer cleared smoke odor quickly on turbo, while an expert noted only average smoke CADR and one user saw slow smoke detection.

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

True HEPA filtration is a key reason experts like the purifier’s cleaning ability. Praise centers on the large 360-degree HEPA filters and high-efficiency particle capture.

Value is highly context-dependent. Sale-price buyers often feel it is worth it, while experts and unhappy owners question the premium price and ongoing filter costs.

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

Virus-reduction confidence comes mainly from Safe Plus and ionizer discussions. Reviewers mention H1N1, bacteria, and virus-reduction claims as reassurance rather than everyday user testing.

VOC and gas reduction is discussed as part of the carbon/deodorization filtration system. One owner using 3D printers found it insufficient for that specialized fume-heavy use.

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

Voice-assistant support worked well with Google Assistant in expert testing. Alexa was less smooth because it confused the purifier with another appliance name.

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

Washable or cleanable filter handling is mixed. Some users liked easy cleaning, while one buyer wished the filters were cleanable instead of replaceable.

Wi-Fi reliability is the weakest smart-home trait. Multiple buyers and one expert report failed setup, offline status, flaky modules, or repeated disconnects.