Compare Levoit P350-P vs IQAir Atem X

Reviewers liked the stronger carbon stage for pet and household odors, with experts pointing to extra carbon and customers linking the pet-rated filter to cleaner-smelling air. The main caveat is that odor results depend on filter upkeep.

Several reviewers were disappointed that the Atem X does not include meaningful carbon or gas filtration as standard. It can handle particles very well, but odor and gas control are not its strongest lane.

One owner liked the way the outlet pattern moved air better than a typical oscillating fan. The airflow was described as reaching the room rather than blowing directly in one spot.

Experts consistently describe the P350 as quick for its intended room size, with around five air changes per hour or a 12-minute exchange cycle. This supports small-room use more than whole-home cleaning.

Expert testing found the purifier could deliver enough air movement for frequent air changes in a large room. That supports its role as a high-capacity particle purifier rather than a small bedroom unit.

Airflow gets credit for moving and circulating a lot of air quickly, and some users enjoy the upward flow. One expert noted that the diffuse top outlet is not meant to create a strong breeze.

Owners and reviewers liked how much air the Atem X moves through a room. Comments often framed the circulation as broad, room-filling airflow instead of a direct fan blast.

Most reviewers say the P350 noticeably improves room air, especially in bedrooms, pet rooms, and small living spaces. A few users were disappointed when the unit was undersized for the room or did not relieve their symptoms.

Reviewers broadly praised the Atem X for strong air-cleaning performance, from lab-style particle tests to everyday home use. Even some critical customers still said the purifier itself worked well.

The built-in sensor received strong praise from both experts and owners. Reviewers liked that it reacted sensitively and gave them confidence that indoor air changes were being tracked.

Allergy feedback is mostly enthusiastic, with many users reporting less sneezing, congestion, itchy eyes, or pet-allergy irritation. One negative customer review said allergy symptoms became worse, so relief is not guaranteed.

Customers with allergies reported fewer symptoms, less congestion, and more comfortable homes. Several tied the purifier to seasonal allergy, pet, and family health benefits.

App control is a clear weakness. Reviewers repeatedly point out that the P350 lacks app connectivity, scheduling through an app, and air quality readouts.

The app was consistently described as useful, easy, and convenient. Reviewers liked remote control, live readings, and extra settings that are not available from the physical controls alone.

Auto mode is missing, and reviewers treat that as one of the main feature tradeoffs. Buyers have to choose fan speeds manually instead of letting the purifier respond to air quality.

Auto and smart modes were a real strength, especially because reviewers could let the purifier react to pollution or cap fan speed for comfort. Owners liked leaving it to manage air quality on its own.

Many owners describe easier breathing, fewer asthma or sinus issues, less congestion, and cleaner-feeling air after running the purifier. The strongest praise comes from pet-allergy and respiratory-irritant situations.

Several customers connected the Atem X to easier breathing, less morning congestion, and a more comfortable home environment. The strongest praise came from households buying it for health-sensitive family members.

Build quality is generally viewed as solid, with praise for durable plastic, good fit and finish, and a well-made feel. One negative review felt the unit operated more cheaply than its price suggested.

Build quality was usually viewed as premium, with reviewers calling out German manufacturing, sturdy design, and a refined feel. A few negative arrivals and noise complaints kept this from being universally perfect.

Expert reviews view the CADR and fan power as strong for a compact purifier, especially in the under-230-square-foot range. It is not framed as a large-room machine.

CADR and measured airflow were standout expert-review strengths. Reviewers repeatedly placed the Atem X among very high-output purifiers for dust, smoke, pollen, and PM removal.

The pet lock is appreciated by owners with pets or children, but it is not foolproof for every home. One cat owner said their kittens still managed to interfere with the controls.

The app can lock the device controls, which reviewers treated as part of a useful smart-control package. This is most relevant for homes with children or shared spaces.

Packaging and arrival condition receive a positive nod from a customer who felt the product was protected and arrived with care. There was no recurring complaint about damaged delivery.

A small number of customers reported serious arrival problems, including a unit that would not work and a missing roller base. Those complaints contrast sharply with the otherwise premium positioning.

Controls are usually described as clear, simple, and easy to use. Customers especially liked the touch controls and straightforward top-panel layout.

Physical controls are cleanly tucked away and often easy enough to reach, but placement can be awkward because the circular body can rotate. This is a design tradeoff more than a dealbreaker.

The one expert comment on support was favorable, describing negative service feedback as rare and highlighting easy registration for extended warranty coverage.

Customer support was the most serious recurring owner complaint. Multiple customers described slow responses, poor follow-through, or frustrating return and warranty communication.

The P350’s gray cylindrical look is broadly liked, with reviewers calling it clean, modern, attractive, and easy to place visually. It avoids the bulky look some users disliked in other purifiers.

Design is one of the Atem X's biggest wins. Experts and customers repeatedly described it as beautiful, modern, sculptural, and easier to live with visually than boxy high-output purifiers.

Indicator-ring expectations are mixed because this model lacks the richer display features found on other Levoit units. The comments point more to missing readouts than poor readability.

Setup documentation is mostly seen as clear enough, with customers saying instructions were easy to understand. The main caution is that the internal filter plastic can still be missed during setup.

Durability comments are positive but sparse, including one short customer review that grouped durability with ease of use and fit. Longer-term reliability is better represented under reliability.

Dust control is one of the strongest customer themes, with many owners reporting less surface dust, cleaner filters, and even cleaner HVAC filters. One negative review said it seemed to push dust and hair around instead of filtering it.

Dust control was praised in both expert CADR discussion and customer use. Owners running it continuously mentioned using it for dust and dander control.

Owners find the purifier easy to set up, operate, clean, and live with. The simple buttons and quick unboxing process come up repeatedly in positive reviews.

Ease of use was a clear positive. Reviewers liked the quick setup, simple controls, app control, and the sense that the purifier could be used without much fuss.

Expert testing describes the P350 as energy efficient for its class, especially compared with the Core 300. Power use is not a major customer complaint.

Energy feedback was generally favorable for such a powerful purifier. One owner barely noticed an electric-bill change, while experts still noted that full-speed use adds real annual cost.

The three manual speeds plus sleep mode give users enough control for everyday use. Reviewers like using higher speeds for quick cleaning and lower speeds for quieter background operation.

The eight fan speeds were repeatedly praised because they make it easier to balance cleaning power and noise. Reviewers especially liked having more control than the usual three or four speeds.

Replacement filter availability is a plus for some buyers, especially because filters are easy to find on Amazon and arrive quickly. Availability was not a repeated problem.

Filter buying created frustration for at least one customer who could not get clear help from support. Availability did not appear as a broad performance issue, but the support experience around filters was poor.

Filter life is mixed: many users get about six months, but dusty or pet-heavy homes may need earlier changes. One reviewer said their filter did not make it a month, while another got years from HEPA filters with added carbon foam.

Filter life was generally acceptable, with several reviewers expecting around a year or more depending on use. Owners also reported decent remaining capacity after months of use.

Filter cost is the most common ownership-cost complaint. Some owners call filters pricey or say to budget for replacements, though others find them affordable or worth the odor reduction.

Replacement filters were a repeated cost concern. Experts consistently noted that the filter pack is expensive, even when they liked the purifier overall.

Experts describe a competent three-stage system built around a pre-filter, particle/HEPA stage, and carbon layer. The filtration stack is treated as the core reason the unit works well for pets.

Handle design is a real drawback for people who move the unit often. Several comments say it is awkward to carry because there is no handle or grip.

The rear leather handle was appreciated as a practical mobility aid. It helps with short moves, though the purifier's weight means wheels still matter for frequent repositioning.

HEPA filtration is generally treated as a strength, especially for pet allergens and fine particles. One customer felt the included filter was not enough and recommended upgraded HEPA filters.

HEPA filtration was treated as a serious strength, especially in expert discussions of HyperHEPA performance. Reviewers credited the filtration system for excellent particle results.

Indicator and display features are useful but imperfect. Users like being able to turn off lights at night, while others complain the filter reminder acts more like a timer than a true condition sensor.

The color-coded air quality lighting gives a quick read on conditions without a conventional screen. Reviewers liked the clean look, though the display style is intentionally minimal.

Most owners do not report chemical or strange smells, and a few specifically praise the lack of odor from the unit. A small number had the opposite experience, including a foul smell after a few months.

Reviewers who mention ionization treat its absence as a plus, especially around pets and ozone concerns. Experts also describe the filtration system as ozone-free without ionizer or UV-C stages.

Listing accuracy is a mixed spot. Some customers say the purifier matched the description, while others were frustrated by missing placement guidance or felt the pet version was too similar to cheaper Core 300 models.

Maintenance is generally considered simple: wipe the grilles, vacuum the filter exterior, and replace filters when needed. Several customers describe filter cleaning or replacement as easy.

Maintenance was mostly described as manageable, with simple filter care and clear indicators. One expert did note that the filter-removal process is more involved than on some competitors.

For mold-related concerns, the Atem X was viewed as useful because it can trap mold while moving more air over a larger area. It may appeal to health-sensitive households that want broader room coverage.

Noise feedback is mostly positive at low and sleep settings, often described as quiet white noise. Complaints cluster around higher speeds, squeaks, or aging units that became louder over time.

Noise feedback depended heavily on speed and expectations. Many owners found it very quiet, while expert testing and a few customers said high speed or defective units could be loud.

Odor reduction is the standout strength, especially for litter boxes, dog smell, musty rooms, cooking odors, smoke drift, and RV smells. Many customers describe a dramatic before-and-after change.

Odor performance was split. One long-term expert said it cleared cooking and smoke odors well, while another owner found it weak for odors because of limited charcoal filtration.

Overall satisfaction is very high, with many customers buying additional units or saying they love the purifier. The few unhappy owners cite noise, weak allergy results, or poor value after a defect.

Overall satisfaction leaned positive, with many customers calling it a great purchase or a best investment. Negative ratings were driven mostly by support, arrival failures, or noise problems rather than weak purification.

Ozone-free operation is viewed positively by pet owners and headache-sensitive users. Reviewers liked that it avoids ozone or ionizer features while still improving air quality.

Ozone-free operation was a clean positive in expert testing. The tested unit did not create measurable ozone while running.

Particle removal performs well in expert testing and customer filter checks. Reviews mention 94% particulate reduction, dirty used filters, and visible debris captured over time.

Particle removal was the product's core strength. Expert tests and customer comments repeatedly described fast, powerful reduction of particulates and visibly better air quality.

Pet dander and fur reduction are major reasons people buy this model, and most pet owners report cleaner air, fewer symptoms, and less visible hair or dander. One negative review said it pushed dog hair and dust around.

Pet-related feedback was favorable, especially from owners using the purifier for pet dander or homes with animals. The comments tied pet comfort and allergy relief to cleaner indoor air.

PM2.5 results are strong in expert testing, with one review measuring a 94% PM2.5 improvement. The limitation is that the purifier itself does not provide PM2.5 readouts.

Owners liked being able to see PM2.5 information in the app. That made pollution events easier to notice and respond to remotely.

Pollen comments are fewer than pet and dust comments, but they are positive. Customers mention relief on pollen days and less pollen settling in a nursery.

Expert CADR discussion included very strong pollen performance. Customer allergy-season comments also suggest the purifier is well suited to pollen-sensitive households.

Portability is mostly good because the unit is compact and light enough to move between rooms. The lack of a handle keeps it from being effortless for everyone.

Portability is helped by the wheel base and handle, but the purifier is still heavy. Reviewers liked the mobility aids, while a few customers found it cumbersome without the wheelbase.

Experts measured modest power draw and described the unit as inexpensive to run. It is built for long operating hours without major energy complaints.

Expert testing found full-speed power draw higher than many high-CADR competitors. It is not wildly inefficient for its output, but maximum-speed use is not especially low-power.

The pre-filter gets positive marks for catching larger contaminants such as dust, hair, fur, and dander. Experts describe it as improved, though it still needs regular vacuuming.

Real-time monitoring is absent, and reviewers clearly miss it. Buyers wanting live air-quality readings or automatic response should choose a smarter model.

Real-time monitoring was a major everyday benefit. Reviewers liked seeing indoor readings quickly, checking them remotely, and using the data to react to cooking, smoke, or other air events.

Reliability is mostly favorable, with several owners reporting years of trouble-free use. The negative side includes a foul odor within three months and an older unit developing bearing-like noise.

Reliability feedback was mixed. Most users reported strong performance, but a handful of customers had early failures, burning-smell concerns, or noisy operation from the start.

Remote control is not included, and one expert said the purifier would be more convenient with it. The lack of remote control reinforces the basic-controls tradeoff.

Remote control through the app was well liked. Owners used it to start purification away from home, adjust fan speed, and check indoor conditions.

Filter replacement is easy once the user understands the bottom-access design, but setup mistakes are possible if the filter remains wrapped or is inserted incorrectly. Customers praised easy swaps after the initial learning curve.

Return and replacement experiences were a sore spot in negative reviews. Customers complained about shipping costs, wrong packaging, and refund delays after defective or problematic units.

Room coverage works best in bedrooms, offices, nurseries, and other small to medium spaces. Negative comments usually come from using it beyond its intended square footage.

Room coverage is a major strength, with expert and owner comments supporting use in large rooms, apartments, and open living areas. The Atem X is consistently treated as a large-space purifier.

A couple of users noticed a cooling or air-mixing effect from the upward airflow. This is a side benefit rather than a dedicated temperature feature.

Timer controls are appreciated, but scheduling is limited. Users who want automatic daily on/off schedules or app-based routines see this as a clear miss.

Scheduling was useful for owners who wanted the purifier to run around daily routines. The app made timed operation feel practical rather than buried.

The size is a major selling point for bedrooms and smaller rooms, with many owners calling it compact, nightstand-friendly, and easy to place. It is not tiny, and larger rooms need a bigger model.

Size is a tradeoff: reviewers liked the slim wall-friendly footprint, but the unit is still large and heavy. It suits open rooms better than people expecting a small purifier.

Sleep mode is praised for quiet nighttime operation and dimmer lights. Several owners use it in bedrooms or move the unit there for sleep.

Sleep benefits are a repeated customer theme, mostly from cleaner breathing and gentle white noise. Several owners said they woke with less congestion or slept noticeably better.

Sleep-related comments were very positive from customers who noticed deeper rest, less snoring, or better nighttime comfort. The benefit appears tied to cleaner air and tolerable noise.

Smart features are minimal, and experts repeatedly call that out. There is no app, Wi-Fi, auto mode, or real-time air-quality feedback.

Smart features were considered genuinely useful, not just decorative. Reviewers liked customized smart modes, dashboard access, and settings that matched noise tolerance to air quality.

Smoke removal is supported by expert testing and a few customer experiences with wildfire or smoke drift. Cigarette smoke expectations should stay realistic, especially in active smoking spaces.

Smoke performance was a highlight for reviewers dealing with wildfire smoke, neighbor smoke, or smoke-related CADR testing. The strongest comments described quick clearing when the fan was turned up.

True HEPA messaging is mixed. One expert says Levoit no longer claims True HEPA on newer materials, while another still describes the filter as True HEPA and effective.

Value is mostly praised because the P350 delivers strong pet-odor and small-room performance at a reasonable price. The value case weakens for buyers comparing it with cheaper Core 300 options or paying frequent filter costs.

Value depends on budget and priorities. Many buyers felt the health, design, and performance justified the cost, while experts and some customers stressed that both purchase price and filters are expensive.

Virus confidence is limited. One customer bought it with virus concerns in mind, while another wished it handled smaller virus-sized particles better.

VOC and gas reduction appears mainly through expert discussion of the carbon layer and one customer’s perfume/asthma experience. It is promising for smells and gases but not heavily tested by customers.

VOC and gas-related capability is a weak point in the U.S. configuration. Reviewers repeatedly noted the lack of gas or carbon filtration for people focused on gases, odors, or VOCs.

Voice assistant support is a clear miss for hands-free smart-home users. One expert specifically noted that the app is useful but voice control is absent.

Wall placement and mounting improve the Atem X's livability. Reviewers liked that it can sit flush or be wall-mounted for a cleaner look.

Warranty coverage is basic but can improve with registration. Reviewers mention the one-year warranty and a second year available after registering.

The 10-year warranty impressed reviewers and helped support the premium positioning. Customer experiences with support and registration, however, made the warranty feel less reassuring for some owners.

Washability is a minor frustration, with one customer wishing the filters could be washable. No review presents a washable pre-filter as a product strength.