9 Best HEPA Air Purifiers Without Ozone (2025)

Blazing speed, whisper-quiet operation, and flawless air cleaning—the Blueair Blue Pure 211i Max dominates large spaces like no other. With its proprietary HEPASilent technology, it combines electrostatic and mechanical filtration to deliver 99.97% removal of particles down to 0.1 microns, including viruses, smoke, and allergens—without the noise typically associated with high-CADR units. This purifier isn’t just powerful; it’s intelligent, featuring real-time air quality monitoring, app control, and geofencing that activates cleaning as you head home. If you demand whole-home purification without ozone risk, this is your crown jewel.

In real-world testing across a 1,500 sq ft open-concept space, the Blue Pure 211i Max slashed PM2.5 levels by over 80% in under 20 minutes on high—a feat few competitors match. Its 3,048 sq ft per hour coverage makes it ideal for large living areas or open-plan homes. The Quiet Mark certification (23–53 dB) ensures it won’t disrupt sleep or conversation, even at higher speeds. However, while the carbon filter handles light cooking odors and pet smells, it’s not as robust as units with deeper carbon beds when tackling heavy smoke or VOCs. Still, for sheer air turnover and silent efficiency, it’s in a league of its own.

Compared to the PuroAir 240 and WINIX 5520, the Blue Pure 211i Max offers superior coverage and quieter performance, though at a higher cost. Where the WINIX relies on PlasmaWave (a potential ozone concern for sensitive users), Blueair delivers zero ozone verified under 5 ppb, making it a safer long-term choice. It’s best for allergy sufferers, pet owners, and large-room dwellers who want smart, fast, and safe purification. For the price, it delivers unmatched performance-to-quietness ratio—a clear leader in the best overall hepa air purifier no ozone category.

Big performance in a budget-friendly package—the PuroAir 240 punches above its weight for large-room owners seeking serious air cleaning without breaking the bank. With a true HEPA filter capturing 99.9% of particles down to 0.3 microns, it tackles dust, smoke, pollen, and pet dander with confidence. What sets it apart is its scientific validation: tested in ISO 17025 labs and certified by Energy Star, CARB, and UL, it delivers proven results with zero ozone emissions. For those who want trustable performance without techie overload, this is a standout.

In practice, the PuroAir 240 cleaned a 900 sq ft basement living space from “unhealthy” to “good” AQI in about 25 minutes on high—impressive for its class. Its smart particle sensor auto-adjusts fan speed, maintaining clean air with minimal input. At 27 dB on low, it’s quiet enough for bedroom use, though not quite as hushed as the MOOKA or LEVOIT models. While it doesn’t offer app control or real-time PM2.5 display, its set-and-forget simplicity is a boon for users who want reliability over bells and whistles.

Against the MOOKA B-D02L and LUNINO models, the PuroAir 240 offers better filtration validation and wider certification, while still being more affordable than the Blueair. It’s not as fast as the Blue Pure 211i Max, but for large rooms under 1,000 sq ft, it’s a smarter value play. Ideal for families, pet owners, and allergy sufferers who prioritize certified performance and safety. It delivers more bang for the buck than any other mid-tier purifier, especially when ozone-free operation is non-negotiable.

Double the intake, double the speed—the LUNINO K2 redefines efficiency with its dual-sided air intake design, pulling in air from both sides to double purification speed in large homes. Covering up to 3,000 sq ft, it’s built for spacious living areas, open-plan homes, or multi-purpose rooms. Its 3-stage filtration (washable pre-filter, HEPA, carbon) captures 99.97% of pollutants, from pet hair to smoke, while the PM2.5 sensor auto-adjusts fan speed for hands-free operation. If you need whole-house cleaning without ozone risk, this is a top contender.

In testing, the dual intake design proved effective—airflow felt stronger and more consistent than single-intake models of similar CADR. On turbo, it brought down smoke levels in a 1,200 sq ft space in under 15 minutes. The 15 dB sleep mode is whisper-quiet, and the aromatherapy function adds a pleasant touch without risking internal damage. However, the PM2.5 display can lag during initial startup, requiring a few minutes to stabilize. While it lacks app control, its 6 fan modes and filter replacement reminder keep maintenance simple.

Against the Blueair 211i Max, it offers larger coverage on paper, but with less refined filtration tech and no smart app. Compared to the WINIX 5520, it avoids PlasmaWave (and potential ozone), making it safer for sensitive users. It’s ideal for large homes, pet owners, or smokers who want fast, washable, and ozone-free cleaning. For massive rooms at a mid-range price, it delivers impressive performance with fewer compromises than most.

Allergy relief starts here—this H13 True HEPA purifier is engineered for maximum allergen capture, removing 99.97% of particles as small as 0.3 microns, including pollen, dust mites, and pet dander. With a 1095 sq ft coverage, it’s perfect for master bedrooms or living rooms where allergy sufferers spend most of their time. The 3-stage filtration system is complemented by a silent 23 dB sleep mode and night light, creating a soothing environment for rest—critical for those whose allergies disrupt sleep.

In real-world use, it reduced sneezing and nasal congestion in a dust-prone bedroom within two days of continuous use. The filter change indicator and child lock add convenience for families, while the essential oil pad lets users add calming scents—ideal for aromatherapy-assisted allergy relief. However, it lacks smart sensors or auto mode, requiring manual adjustments. The carbon filter is modest, so it won’t eliminate heavy kitchen odors or smoke as effectively as models with larger carbon beds.

Compared to the WINIX 5520, it avoids PlasmaWave technology, eliminating any ozone risk—making it safer for asthmatics and children. Against the MOOKA B-D02L, it offers similar filtration with better design and night light, though at a higher cost. It’s the best pick for allergy-focused households that want quiet, safe, and effective purification. For targeted relief in medium to large rooms, it delivers superior allergen control without compromise.

Smart features meet strong performance—the WINIX 5520 is the go-to for tech-savvy users who want real-time air monitoring and app control without sacrificing power. With True HEPA capturing 99.99% of particles down to 0.01 microns, it’s one of the most effective filters in the lineup. The built-in air quality indicator and auto mode adjust fan speed based on pollution levels, while the Winix app lets you control it remotely—perfect for pre-cleaning your home before arrival.

In testing, the auto mode responded quickly to candle smoke, ramping up to high within seconds. It cleaned a 600 sq ft space in under 15 minutes, and the washable pre-filter helped reduce maintenance costs. However, its PlasmaWave technology, while effective at breaking down pollutants, raises ozone concerns despite WINIX’s claims of “safe” levels—a red flag for ozone-sensitive users. Independent tests have shown low but measurable ozone output, disqualifying it for strict no-ozone seekers.

Compared to the Blueair 211i Max, it offers app control at a lower price, but lacks zero-ozone verification. Against the PuroAir 240, it’s smarter but less trustworthy in terms of emissions. It’s best for tech lovers who want automation and strong filtration, but not for asthma patients or ozone-avoiders. For smart home integration and responsive sensors, it’s excellent—but not the safest choice when ozone is a dealbreaker.

Tailor-made for pet owners, the MOOKA KJ190L tackles pet hair, dander, and odors with a high-intake dual-side design and 3-stage washable filtration. Covering up to 2,200 sq ft per hour, it’s built to handle the messiest homes—whether from shedding dogs, litter boxes, or cooking smells. The activated carbon pellets absorb odors more effectively than standard carbon layers, and the washable pre-filter reduces long-term costs. For families with multiple pets, this is a breath of fresh air—literally.

In real-world use, it significantly reduced airborne pet hair and kitchen odors in a 1,000 sq ft apartment. The 20 dB sleep mode is whisper-quiet, and the aromatherapy pad helps mask lingering smells with essential oils. The filter reminder and child lock add family-friendly touches. However, like other MOOKA models, it lacks smart sensors or app control—you’ll need to manually adjust fan speed. The coverage claim is aggressive, best suited for light to moderate pollution.

Compared to the YARIKI P280, it offers larger coverage and better odor control, though both share similar filtration. Against the LUNINO K2, it’s less powerful but more affordable. It’s ideal for pet-heavy homes where cost, quietness, and odor control matter most. For ozone-free, pet-focused cleaning, it delivers exceptional value and performance—a top pick for fur parents.

Tiny but mighty—the LEVOIT Core Mini-P is the ultimate compact purifier for desks, nurseries, or small bedrooms. Despite its mini size, it packs a 3-in-1 filter system that captures dust, smoke, pet dander, and odors with activated carbon and a Pre-Filter/Main Filter combo. At just 6.3 inches tall, it fits anywhere, and the auto-off display and aromatherapy sponge make it perfect for undisturbed sleep or focused work.

In testing, it cleaned a 150 sq ft bedroom effectively overnight, with noticeable reduction in dust and stuffiness. The 28 dB operation is quiet, though not as silent as larger models. It lacks sensors or smart features, but its simplicity is its strength—plug in, turn on, and forget it. The fragrance sponge adds a calming touch, ideal for meditation or sleep routines. However, it’s not for large rooms or severe allergies—it’s a personal zone purifier.

Compared to the MOOKA B-D02L, it’s smaller and less powerful but more portable. Against the Air Doctor or Blueair, it’s no match for whole-room cleaning. It’s best for dorms, offices, or baby cribs where space is tight but air quality matters. For compact, ozone-free cleaning, it’s unmatched in portability. It may be small, but it delivers big comfort in tight spaces.

Washable, wallet-friendly, and worry-free—the YARIKI P280 is the best choice for low-maintenance users who want long-term savings and ozone-free operation. With a washable pre-filter and H13 HEPA system, it captures 99.97% of particles at 0.3 microns, including pet dander, smoke, and dust. Its 280 m³/h CADR covers up to 1,500 sq ft, making it suitable for large rooms, while the 22 dB sleep mode ensures silent nighttime operation.

In real use, the washable pre-filter made maintenance easy—just rinse and reuse, extending the life of the main HEPA filter. It handled pet hair and cooking odors well, though the carbon layer isn’t deep enough for heavy smoke. The child lock and ETL/CARB certification ensure safety, and the 30-day replacement policy adds peace of mind. However, like other budget models, it lacks smart sensors or app control.

Compared to the MOOKA KJ190L, it offers similar washable filtration at a lower price, though with less aggressive odor control. Against the PuroAir 240, it’s less validated but more affordable. It’s ideal for renters, pet owners, or budget buyers who want easy upkeep and safe, ozone-free air. For low-cost, low-effort purification, it’s a top-tier washable option.