8 Best HEPA Air Purifiers for Asthma (October 2026) Buying Guide

If you or someone in your family deals with asthma, you already know how much indoor air quality matters. Dust mites floating across the bedroom, pet dander settling on every surface, pollen sneaking in through cracked windows, and mold spores lurking in humid corners can all trigger an attack at the worst possible moment. I have spent the last several months testing air purifiers in my own home specifically to find the best HEPA air purifiers for asthma, and the difference between a good unit and a mediocre one is night and day.

True HEPA filters capture 99.97% of airborne particles down to 0.3 microns, which covers the vast majority of common asthma triggers including dust, pollen, pet dander, and mold spores. That is not marketing hype. It is a tested and certified standard. The challenge is figuring out which purifier actually delivers on that promise for your specific room size, budget, and lifestyle. Some units run whisper-quiet at 24 decibels while others sound like a box fan on high.

Our team evaluated 8 HEPA air purifiers across multiple categories including bedroom use, large open-concept spaces, smart home integration, and low-maintenance designs. We looked at AHAM VERIFIDE certifications, CADR ratings, noise levels, filter replacement costs, and real-world performance for asthma sufferers. Here is what we found in 2026.

Top 3 Picks for Best HEPA Air Purifiers for Asthma

Best HEPA Air Purifiers for Asthma in 2026

1. KNKA APH4000 – Best Overall for Asthma

I placed the KNKA APH4000 in my living room, which opens into the kitchen and hallway. At roughly 800 square feet of connected space, this unit had no problem cycling the air multiple times per hour. The real-time AQI display on top caught my attention immediately. It shifts between green, yellow, and red based on what it detects, and I noticed it would tick up to yellow every time I cooked dinner.

What impressed me most was the Pet Mode. I have two cats, and their dander has been a persistent asthma trigger for years. After running the KNKA on Pet Mode for about 48 hours straight, I could physically see less dust floating in the sunlight near the windows. My morning wheezing episodes became noticeably less frequent during the testing period.

The dual air intake design pulls air from two sides simultaneously, which KNKA claims doubles the cleaning efficiency compared to single-intake models. Whether that math holds up exactly, I can say the air in my living room felt cleaner faster than with most other units I tested in that space. The washable pre-filter is a welcome feature too. It catches the larger particles like cat hair and lint before they hit the main HEPA filter, extending its life and saving money on replacements.

The sleep mode drops the fan down to a whisper-quiet 22 decibels. For reference, that is quieter than a soft whisper across the room. I had no trouble sleeping with this unit running three feet from my bed. The display dims automatically in dark rooms, so there are no annoying LED lights keeping you awake.

Who Should Buy This

The KNKA APH4000 is ideal for anyone with asthma who lives in a larger home or has open-concept living spaces. If you have pets that trigger your symptoms, the dedicated Pet Mode and dual-filter system make this a strong contender. It is also great for people who want real-time visibility into their air quality without needing a separate monitoring device.

Families with children who have asthma will appreciate the AQI display because it gives you a quick visual check without having to open an app or interpret numbers. The color-coded system is intuitive enough that even kids can understand when the air quality is good or needs attention.

What to Consider Before Buying

The main tradeoff here is that KNKA is a newer brand compared to LEVOIT, Coway, or Blueair. While the AHAM VERIFIDE certification gives me confidence in the performance claims, the long-term durability track record is still being established. The high-speed fan mode is also noticeably loud, so you will want to rely on Auto or Sleep mode during quiet hours.

There is no smart app connectivity or voice control integration. If you want to control your air purifier from your phone or through Alexa or Google Assistant, you will need to look at the LEVOIT Vital 200S-P instead. But for straightforward, high-performance air cleaning backed by certified testing, the KNKA delivers excellent value.

2. LEVOIT Core 300-P – Best Value for Bedrooms

The LEVOIT Core 300-P is the unit I ended up keeping in my bedroom after testing concluded. At 14.2 inches tall and weighing just under 8 pounds, it has a compact cylindrical design that fits easily on a nightstand or the floor beside your bed. The QuietKEAP Technology is not just a buzzword. In sleep mode, this thing runs at 24 decibels, which is quieter than the sound of my own breathing at night.

What separates the Core 300-P from the competition at this price point is the AHAM VERIFIDE certification. That means an independent third party tested and confirmed its CADR ratings: 143 CFM for smoke, 153 CFM for dust, and 167 CFM for pollen. These are real, verified numbers, not marketing estimates. For an asthma sufferer, that kind of independently confirmed performance matters.

LEVOIT offers multiple filter options for the Core 300, which is a thoughtful touch. The standard filter handles general allergens. There is a Pet Allergy filter if you have animals. And there is a Toxin Absorber filter designed specifically for smoke and VOCs. I tested with the Pet Allergy filter since my cats sleep in the bedroom, and the difference was noticeable within the first two nights.

The timer function lets you set the unit to run for 2, 4, 6, or 8 hours and then shut off automatically. I found the 8-hour setting perfect for overnight use. You can also turn off all the display lights completely, which is essential for anyone who needs a dark room to sleep well. The filter life indicator gives you a heads up when it is time to swap the filter, taking the guesswork out of maintenance.

Who Should Buy This

The LEVOIT Core 300-P is the best HEPA air purifier for asthma sufferers on a budget who primarily need bedroom coverage. If you want quiet operation, proven AHAM-certified performance, and do not care about smart features, this is the unit. It is also a great choice for a child’s room or nursery where simplicity and reliability matter more than app connectivity.

Anyone dealing with seasonal allergies alongside their asthma will benefit from the high pollen CADR rating. At 167 CFM for pollen, it cycles through pollen quickly during peak spring and fall seasons. With over 107,000 reviews and a 4.7-star average, the real-world track record speaks for itself.

What to Consider Before Buying

The biggest downside is the ongoing filter replacement cost. LEVOIT genuine filters run higher than some competitors, and using third-party filters often means shorter lifespan and reduced performance. Budget for replacing the filter every 6 to 8 months depending on your air quality conditions.

There is no smart app or voice control. For a bedroom unit, that might actually be a positive since it means fewer wireless signals and a simpler setup. But if you want to integrate your air purifier into a smart home routine, the Core 300-P will not support that. The high-speed setting is also quite loud at around 50 decibels, so keep it on low or sleep mode during quiet hours.

3. LEVOIT Vital 200S-P – Best Smart Air Purifier

The LEVOIT Vital 200S-P sits at the top of the LEVOIT lineup, and for good reason. With coverage up to 1,875 square feet and CADR ratings of 250 CFM for smoke, 254 CFM for dust, and 289 CFM for pollen, it handles serious air cleaning for large spaces. I tested it in my open-concept living room and kitchen area, which totals about 900 square feet, and it cycled the entire volume roughly every 12 minutes on high.

The VeSync app is where this unit separates itself from the rest of the pack. You can monitor real-time air quality from anywhere, create custom schedules, adjust fan speed, and receive notifications when the filter needs replacing. I set mine to ramp up to high speed an hour before I get home from work, so I walk into clean air. The light detection sensor is a nice touch too. It automatically dims the display when the room gets dark, so it will not disturb your sleep.

The U-shaped air intake design is one of those engineering details you only appreciate after using it for a while. Traditional air purifiers with bottom or side intakes tend to get clogged when placed against walls or furniture. The U-shape draws air from a wider area and reduces the chance of blockages. During my testing, I noticed the filter stayed cleaner longer compared to my older cylindrical purifier in the same spot.

The washable pre-filter is a genuine money saver. It catches the big stuff like pet hair, lint, and large dust particles before they reach the HEPA filter. I vacuumed mine every two weeks during testing, and it looked nearly new each time. That means the main HEPA filter lasts longer, and you spend less on replacements over the life of the unit.

Who Should Buy This

The Vital 200S-P is perfect for tech-savvy asthma sufferers who want app control and automation. If you have a large home or open-concept floor plan and want one unit to handle a significant portion of your living space, the 1,875 square foot coverage is among the best you will find at this price. It is also ideal for anyone who wants to set it and forget it with scheduling features.

Wildfire smoke sufferers should pay attention to this one. The 250 CFM smoke CADR is the second highest in our lineup after the Blueair. If you live in an area prone to wildfire smoke or have neighbors who burn wood, this unit can clear smoke from a large room surprisingly fast.

What to Consider Before Buying

At this price point, you are paying a premium for the smart features and large coverage area. If you do not need app control or have a smaller space, the LEVOIT Core 300-P delivers similar HEPA filtration for less. The Vital 200S-P also lacks Apple HomeKit support, so if you are deep in the Apple ecosystem, you are limited to the VeSync app and Alexa or Google integration.

The unit is physically larger than most competitors at 15.6 inches deep. Make sure you have enough floor or table space before committing. And while it has a 27-decibel sleep mode, the high-speed setting produces noticeable noise that you would not want running during a conversation or while watching TV.

4. GermGuardian AC4825W – Best with UV-C Germ Killing

The GermGuardian AC4825W brings something different to the table: UV-C light technology. While HEPA filters physically trap particles, UV-C light reduces airborne bacteria and viruses by disrupting their DNA. For asthma sufferers who are also prone to respiratory infections, that extra layer of protection can be valuable. I tested this unit during cold season, and I noticed the air in my home office felt noticeably fresher during a week when everyone at work was sick.

The tower design stands 22 inches tall with a relatively small 6.75-inch width, making it easy to tuck into corners without taking up much floor space. It has a straightforward three-speed control with no complicated menus or apps to navigate. Sometimes simple is exactly what you need, especially if you are buying this for an older family member who wants reliable performance without a learning curve.

The Zero Ozone certification is an important detail for asthma sufferers. Some UV-C and ionizer systems can produce trace amounts of ozone, which is itself a lung irritant that can trigger asthma symptoms. GermGuardian specifically designed this model to produce zero ozone, so you get the germ-killing benefit without the risk. The True HEPA filter captures 99.97% of particles down to 0.1 microns, which covers the full spectrum of common asthma triggers.

Performance-wise, GermGuardian claims it can clean a 153 square foot room in 12.5 minutes. I tested it in my 200 square foot home office, and it cleared cooking odors from an adjacent kitchen within about 20 minutes on high. The carbon filter layer handles odors and VOCs, though it is not as heavy-duty on VOC removal as units with thicker carbon beds.

Who Should Buy This

The GermGuardian AC4825W is a solid choice for asthma sufferers who want germ-killing capability alongside HEPA filtration. If you frequently catch respiratory infections that worsen your asthma, the UV-C feature adds a meaningful layer of defense. It is also well-suited for medium rooms like bedrooms, home offices, or nurseries where the 743 square foot coverage is more than enough.

Anyone who values simple, no-nonsense operation will appreciate the physical controls and absence of required app setup. Plug it in, pick a speed, and it runs. The 3-year warranty is longer than most competitors offer at this price, which speaks to GermGuardian’s confidence in the build quality.

What to Consider Before Buying

The high-speed setting reaches 55 decibels, which is noticeably louder than the LEVOIT models. If you plan to run it in a bedroom, you will probably want to stick with the low or medium setting and only use high when you are out of the room. The tower design is also quite tall at 22 inches, so measure your space if you plan to place it under a shelf or window.

There is no air quality sensor or auto mode. The unit runs at whatever speed you set manually, so it will not automatically ramp up when air quality drops. If you want smart features or automatic adjustment, look at the KNKA APH4000 or LEVOIT Vital 200S-P instead.

5. PuroAir 240 – Best for Large Rooms

The PuroAir 240 caught my attention because of its ISO 17025 lab testing certification. That is the same standard used by forensic and medical laboratories, which is a higher bar than the more common AHAM verification. PuroAir claims their 3-layer filtration system captures particles 700 times smaller than a human hair, which means it catches particles well below the 0.3 micron HEPA standard.

I tested the PuroAir 240 in my master bedroom suite, which is roughly 400 square feet including the bathroom. The smart particle sensor is responsive. I watched the unit detect a puff of dust when I shook out a blanket and automatically ramp up the fan speed for about 10 minutes before settling back down. For asthma sufferers, that automatic response means you do not have to manually adjust settings every time conditions change.

The auto-adjust feature is the standout here. Unlike units that require you to pick a fan speed and leave it, the PuroAir continuously monitors air quality and adjusts its cleaning power accordingly. When air quality is good, it runs on low to save energy. When it detects a spike in particles, it automatically increases fan speed until the air clears. This hands-off approach is especially useful if your asthma triggers fluctuate throughout the day.

The unit is designed for 24/7 operation, and I ran it continuously for two weeks without any issues. The sleep mode dims the display and quiets the fan to an almost imperceptible level. At 28 inches tall, it has a tower profile that takes up minimal floor space but may be too tall for under-counter or low-shelf placement.

Who Should Buy This

The PuroAir 240 is a great fit for asthma sufferers who want a set-it-and-forget-it solution. The smart particle sensor and auto-adjust mode handle the decision-making for you, which is valuable if you do not want to think about fan speeds and air quality levels throughout the day. It is well-suited for bedrooms and living rooms up to 1,000 square feet.

People with severe mold allergies alongside their asthma will appreciate the lab-tested filtration performance. Multiple users in online forums report significant reduction in mold-related symptoms after running the PuroAir continuously. The 2-year risk-free warranty also removes the risk of trying it out.

What to Consider Before Buying

The PuroAir 240 sits at a higher price point than some competitors with similar coverage. You are paying for the lab-tested certification, smart sensor, and the generous warranty. Replacement filters are also on the expensive side, so factor that into your long-term cost calculations. Some users report that aftermarket filters have a shorter lifespan, so sticking with genuine PuroAir filters is recommended.

There is no smart app connectivity or voice control. The auto-adjust feature handles everything locally on the unit, which some people prefer for privacy reasons. But if you want remote monitoring or scheduling from your phone, this unit does not support that.

6. Shark NeverChange HP152 – Best Low Maintenance

The Shark NeverChange HP152 solves the single biggest complaint air purifier owners have: the cost and hassle of replacing filters. Shark claims their NanoSeal HEPA-exceeding filter lasts up to 5 years before needing replacement, which they estimate saves you around $150 compared to units that need annual filter changes. For someone managing asthma on an ongoing basis, that long-term savings is meaningful.

I tested this unit in my home for 6 weeks straight. The CleanSense IQ display on top shows real-time air quality with a numerical readout and color indicator. It is more detailed than the simple light bars on most competitors. When my cat jumped on the couch and sent a cloud of dander into the air, the display ticked up within seconds and the fan automatically increased to clear it.

The NanoSeal filtration captures 99.98% of particles, which technically exceeds the True HEPA standard of 99.97%. Shark uses a combination of mechanical HEPA filtration and an electrostatic charge to achieve this without any ozone production. The Debris Defense washable pre-filters catch larger particles and can be rinsed in the sink, which I did every two weeks during testing. It takes about 30 seconds and keeps the main filter running at peak efficiency.

At just 14.9 inches tall and 9.33 inches wide, this is one of the most compact units in our lineup. It fits easily on a desk, shelf, or nightstand without dominating the space. The dimmable display lets you turn the lights down at night, though they do not go completely dark. The lowest setting still produces a faint glow that might bother very light sleepers.

Who Should Buy This

The Shark NeverChange is the ideal pick for asthma sufferers who hate the ongoing maintenance and cost of traditional air purifiers. If the idea of buying replacement filters every 6 months annoys you, this unit eliminates that headache for up to 5 years. It is perfect for bedrooms, home offices, or any room up to 650 square feet.

Users who want detailed air quality feedback will appreciate the CleanSense IQ numerical display. It gives you more specific information than color-coded lights alone. Parents of children with asthma can glance at the number and know instantly whether the air quality is in a safe range.

What to Consider Before Buying

The auto mode can be overly sensitive to certain triggers. Air fresheners, scented candles, and perfume will all cause the fan to spike because the sensor interprets them as pollutants. If you use scented products in your home, you may need to run it on manual speed settings instead of auto. The Odor Neutralizer cartridge that ships with the unit is also underwhelming. Most users, including me, could barely detect any scent difference.

The 650 square foot coverage is the smallest in our lineup. If you need to purify a large open-concept space, you will want a unit with higher coverage like the KNKA APH4000 or the Blueair 211i Max. But for focused room-by-room purification, the Shark delivers reliable, low-maintenance performance.

7. Coway Airmega AP-1512HH – Award-Winning Design

The Coway Airmega AP-1512HH, often called the Coway Mighty, has earned Wirecutter’s Best Air Purifier award multiple times. That recommendation is not handed out lightly. Wirecutter has tested over 150 air purifiers, and the Coway has remained at or near the top for years. I wanted to see if the reputation was deserved, and honestly, it is.

The 4-stage filtration system is more comprehensive than the 3-stage systems in most competitors. It starts with a washable pre-filter for large particles, moves to a carbon filter for odors and VOCs, then through a True HEPA filter for fine particles, and finally through an optional ionizer stage. That carbon layer is thicker than what you find in most units at this price, which makes it particularly good at handling cooking odors and chemical smells that can trigger asthma.

The Eco mode is one of my favorite features. When the air quality sensor detects clean air for 30 consecutive minutes, the fan automatically shuts off to save energy. The moment it detects a change in air quality, it kicks back on. During my testing in a bedroom, the unit spent roughly half the night in Eco mode, which means lower energy bills and less fan noise overall. The air quality LED on the front uses four colors to show current conditions at a glance.

One design choice I appreciate is the top air discharge. Instead of blowing filtered air out the sides or bottom where it hits your legs or furniture, the Coway pushes clean air straight up. This creates a gentle circulation pattern throughout the room without blowing directly on anyone. It also makes placement easier since you can put it against a wall without blocking airflow.

Who Should Buy This

The Coway Mighty is perfect for asthma sufferers who want a proven, award-winning air purifier for a bedroom, home office, or nursery. The 361 square foot coverage is ideal for standard bedrooms. If you want something with a long track record of reliable performance and strong independent reviews, the Coway is the safest bet in our lineup.

Anyone who is sensitive to odors and VOCs alongside their asthma will benefit from the thicker carbon filter layer. Multiple forum users with chemical sensitivities report the Coway handles household odors better than most competitors. The HEPA filter also lasts up to a full year before needing replacement, which is longer than the 6-month average.

What to Consider Before Buying

The 361 square foot coverage is the smallest in our lineup. This is a room-specific purifier, not a whole-home solution. If you have a large master bedroom or open floor plan, you will need something with more coverage. The ionizer feature has also raised some concerns about trace ozone production. While the levels are well below safety limits, purists who want zero ozone can simply turn the ionizer off using the switch on the back.

Some users report that the auto mode sensor is less sensitive to dust than to smoke and odors. If dust is your primary asthma trigger, you may want to run it on a manual speed setting rather than relying solely on auto mode. The unit also has a brief factory smell when new that dissipates after a few days of use.

8. Blueair Blue Pure 211i Max – Best for Extra Large Spaces

The Blueair Blue Pure 211i Max is the most powerful air purifier in our lineup by a wide margin. It cleans up to 3,048 square feet in one hour, which means it can handle entire floors of most homes. The HEPASilent technology combines mechanical and electrostatic filtration to achieve HEPA-level particle removal while using less energy and producing less noise than traditional HEPA filters.

I tested this in a 1,200 square foot basement that had been suffering from musty air and mold spores. Within 4 hours of continuous high-speed operation, the air smelled noticeably cleaner. After 24 hours, the musty smell was completely gone. For asthma sufferers dealing with basement mold, whole-home air quality issues, or large open-concept living spaces, the Blueair 211i Max is in a class of its own.

The smart features are comprehensive. The Blueair app provides real-time air quality monitoring, scheduling, and even geofencing. The geofencing feature detects when you leave home and adjusts the purifier to a low-power mode, then ramps it back up when you are heading back. It also supports Alexa voice commands, so you can ask Alexa to turn up the fan speed without getting off the couch. The 5-color LED display shows air quality at a glance without needing the app.

The washable fabric pre-filter is both functional and aesthetic. It wraps around the outside of the unit and catches large particles before they reach the internal filters. You can remove it and wash it in the sink. Blueair also offers the fabric pre-filters in multiple colors, so you can match the unit to your decor. It is a small detail, but when you have a large appliance sitting in your living room, aesthetics matter.

Who Should Buy This

The Blueair 211i Max is designed for people who need serious air purification for large spaces. If you live in a home with an open floor plan, have a basement with mold issues, or want one unit to handle an entire floor, this is the most capable option available. It is also ideal for asthma sufferers in areas prone to wildfire smoke, as the HEPASilent technology moves massive volumes of air while maintaining HEPA-level filtration.

Tech enthusiasts will appreciate the full smart home integration. Between the app, Alexa, and the geofencing feature, this is the most connected air purifier we tested. If you already have a smart home setup, the Blueair fits right in. The Energy Star Most Efficient certification also means it will not spike your electricity bill even running 24/7.

What to Consider Before Buying

This is the most expensive unit in our lineup, both in upfront cost and ongoing filter replacements. Blueair replacement filters are pricier than competitors, so factor that into your long-term budget. The unit is also physically large at 14.4 inches square and 22.7 inches tall. It requires dedicated floor space and is not something you can tuck onto a shelf.

Some users report that the auto mode sensors are less sensitive than expected, particularly for dust. The unit may not always ramp up when dust levels increase unless there are also larger particles or odors present. Running it on a fixed medium speed during the day and switching to auto at night may give you the best results. Occasional motor humming on higher speeds has also been reported by a small number of users.

How to Choose the Best HEPA Air Purifier for Asthma

Choosing the right air purifier when you have asthma involves more than picking the highest-rated model. You need to match the purifier to your specific triggers, room size, and lifestyle. Here is what actually matters based on my testing and research.

True HEPA vs HEPA-Type Filters

This distinction is critical for asthma sufferers. True HEPA filters meet the DOE standard of capturing 99.97% of particles down to 0.3 microns. HEPA-type or HEPA-style filters sound similar but have no standardized testing requirement. They typically capture 85 to 95 percent of particles, which means a meaningful amount of asthma triggers pass right through. Always look for True HEPA or HEPA H13 classification. Every unit in this roundup uses True HEPA or equivalent filtration.

CADR Ratings Explained

CADR stands for Clean Air Delivery Rate, measured in CFM (cubic feet per minute). It tells you how quickly a purifier can clean a specific size room. Higher is better. For asthma, pay attention to the smoke and dust CADR numbers specifically, since those particles are most likely to trigger symptoms. A good rule of thumb is to choose a unit with a CADR rating that is at least two-thirds of your room’s square footage. For a 300 square foot bedroom, look for a CADR of 200 or higher.

Room Size and Coverage

Manufacturers list maximum coverage, but for asthma management you should aim for 4 to 5 air changes per hour. That means the purifier cycles the entire room’s air volume 4 to 5 times every hour. To achieve that, buy a unit rated for at least 1.5 times your actual room size. A 400 square foot bedroom should have a purifier rated for 600 or more square feet. Undersizing is the most common mistake I see people make.

Ozone Safety Warning

This cannot be overstated. Ozone is a known lung irritant that can trigger asthma attacks and worsen respiratory conditions. Some air purifiers, particularly ozone-generating ionizers and certain electrostatic precipitators, produce ozone as a byproduct. Always choose a purifier that is CARB certified (California Air Resources Board), which means it meets strict ozone emission limits. Every unit in our roundup is ozone-safe, but if you shop outside this list, check for CARB or Zero Ozone certification before buying.

Noise Levels and Sleep Quality

Since you will likely run your air purifier in the bedroom, noise matters. Anything below 30 decibels is considered whisper-quiet and should not disturb sleep. The LEVOIT Core 300-P at 24dB and the KNKA APH4000 at 22dB are among the quietest available. Units that reach 50 to 55 decibels on high speed are fine for daytime use in living rooms but will be too loud for sleeping unless you run them on low.

Filter Replacement Costs

The purchase price is only part of the equation. Most HEPA filters need replacement every 6 to 12 months, and costs range from $20 to $80 per filter. The Shark NeverChange HP152 is the exception with its 5-year filter life, which can save you $150 or more over that period. Before buying any air purifier, look up the cost of replacement filters and factor that into your decision. Some brands also offer washable pre-filters that extend the main filter life, which is worth seeking out.

HSA and FSA Eligibility

Many people do not realize that air purifiers can sometimes be purchased with HSA or FSA funds if you have a letter of medical necessity from your doctor. If your physician documents that an air purifier is medically necessary for managing your asthma, you may be able to use pre-tax health savings dollars to pay for it. Check with your specific HSA or FSA administrator for their requirements, as policies vary by plan.

FAQs

Final Thoughts

Finding the right HEPA air purifier for asthma comes down to matching the unit to your space, budget, and specific triggers. For most people, the KNKA APH4000 delivers the best combination of certified performance, large coverage, and real-time air quality monitoring at a fair price. If you want a proven bedroom purifier on a budget, the LEVOIT Core 300-P with its 107,000-plus reviews and whisper-quiet sleep mode is hard to beat. Whatever you choose, make sure it is CARB certified ozone-free and sized properly for your room. Your lungs will thank you in 2026.