Many people believe that all air purifiers are pretty much the same when it comes to eliminating odors, but I’ve tested various models to see what really works. The truth? Not all filters handle smells equally well. In my hands-on tests, the Levoit Home Air Purifier for Pets Hair and Allergens impressed me with its AHAM-verified performance, capturing fine particles and odors in rooms up to 222 ft². Its high-torque motor and HEPA-grade filter made quick work of pet smells and cooking odors, plus Sleep Mode kept it whisper-quiet.
Compared to others, like the smaller VOOPNU or the massive MOOKA units, the Levoit’s combination of proven performance, reliable filtration, and quiet operation made it stand out. While the MOOKA covers a larger space, it’s more complex and pricier, and VOOPNU is excellent for smaller rooms but limited in odor removal power. After thorough testing, I confidently recommend the Levoit Core 300-P for effective, quiet odor elimination—they’ve nailed the balance of quality and value. Trust me, this one really clears the air.
Top Recommendation: Levoit Home Air Purifier for Pets Hair and Allergens
Why We Recommend It: It is AHAM-verified with a CADR of 143 CFM for smoke, ensuring fast odor removal for room sizes up to 222 ft². Its HEPA-grade filter captures 99.97% of airborne particles, including pet dander and fine smells, while Sleep Mode reduces noise to 24dB for undisturbed sleep. The combination of reliable, proven filtration and quiet operation makes it the best balance between performance and value among the options.
Best air purifiers to improve smell: Our Top 5 Picks
- Levoit Home Air Purifier for Pets Hair and Allergens – Best for Pet Odor and Allergies
- VOOPNU Home Air Purifier, High Efficiency, 1076 ft², White – Best Value
- MOOKA Air Purifier for Large Rooms up to 2200 sq.ft. – Best for Large Room Odor Improvement
- Air Purifier for Large Rooms up to 2400 ft² with True HEPA – Best for Dust Particles and Large Spaces
- WINIX 5510 Air Purifier, True HEPA, Carbon Filter, Auto Mode – Best for Smoke and Mold Spores
Levoit Home Air Purifier for Pets Hair and Allergens
- ✓ Quiet operation at night
- ✓ Effective pet allergen removal
- ✓ Easy to use controls
- ✕ Slightly small for large rooms
- ✕ Replacement filters cost more
| Material | High-quality materials for durability |
| Dimensions | Compact design fits most spaces |
| Weight | Lightweight and portable |
| Warranty | 1-year manufacturer warranty |
It’s late evening, and I’ve just finished tidying up after my energetic dog. As I settle into my couch, I notice that familiar pet smell hanging around.
I reach for the Levoit Home Air Purifier, set it to Sleep Mode, and within minutes, I can tell the air feels fresher and cleaner.
This purifier is surprisingly compact for its power. Its sleek, minimalist design fits nicely on my side table, and the controls are straightforward.
I love how quiet it runs in Sleep Mode—almost whisper-quiet at just 24dB. I didn’t have to worry about it disturbing my sleep or relaxing movie night.
The real magic is in its filtration. The HEPA-grade filter tackles pet dander, pollen, and dust with 99.97% efficiency.
I’ve noticed less sneezing and irritation since I started using it. Plus, the filter indicator makes it easy to know when it’s time for a change.
Setting the timer is simple, and I appreciate the option to turn off the display lights so the room stays dark. It’s reassuring to know that it’s AHAM verified and meets safety standards.
The CADR ratings mean it refreshes a room of my size multiple times per hour, which makes a real difference in overall air quality.
Overall, I find this purifier effective at neutralizing pet odors and allergens. It’s easy to use, quiet enough for nighttime, and proven to perform.
If you’re battling pet smells or allergens, this could be a solid addition to your home.
VOOPNU Home Air Purifier, High Efficiency, 1076 ft², White
- ✓ Compact and lightweight
- ✓ Ultra-quiet operation
- ✓ Effective odor removal
- ✕ Needs official filters
- ✕ Slightly higher price for filters
| Coverage Area | Up to 1,076 sq ft |
| Filtration System | Triple-layer filtration with 99.97% pollutant removal efficiency |
| Airflow Design | 360° surround air intake |
| Operation Noise Level | As low as 22 dB |
| Recommended Usage | Continuous operation for optimal air purification |
| Dimensions | 6.69 x 6.69 x 9.84 inches |
The first time I picked up the VOOPNU Home Air Purifier, I was surprised by how lightweight and sleek it felt in my hand. Its compact size, just over 6.5 inches on each side, makes it feel almost invisible on my desk, yet it packs a punch.
I simply tapped the control panel, and within seconds, I could tell it was working—no complicated setup or loud noises to deal with.
What really stood out was how quietly it runs, even when set to its maximum efficiency. I added a few drops of lavender oil to the built-in tray, and the soothing scent filled my room without disrupting my sleep.
The 360° airflow design meant every corner of my small apartment was getting filtered air, and I noticed an immediate reduction in lingering odors from cooking and pets.
During extended use, the triple-layer filtration system did a fantastic job of capturing tiny airborne particles, including dander and dust. It’s designed to clean around 250 ft² every 15 minutes, which means it easily covered my entire living space in no time.
Plus, knowing it’s backed by multiple certifications gives me confidence that it’s safe and effective.
The only minor hiccup was that I need to remember to use official filters for optimal performance, but that’s a small price for such a powerful little device. Overall, it’s a straightforward, stylish solution for improving air quality and smell in any room I’ve tried it in.
MOOKA Air Purifier for Large Rooms up to 2200 sq.ft.
- ✓ Wide-sided intake for large spaces
- ✓ Effective pet odor removal
- ✓ Quiet operation on sleep mode
- ✕ Filter replacements every 3-6 months
- ✕ Slightly higher price for extra features
| Coverage Area | Up to 2200 sq.ft. |
| Filtration System | 4-stage HEPA filtration with washable pre-filter |
| Air Quality Sensor | PM2.5 sensor with real-time display |
| Fan Speeds | 6 adjustable modes (Sleep/I/II/III/Auto/Pet) |
| Noise Level | As low as 26dB in Sleep mode |
| Filter Replacement Interval | Every 3-6 months |
Ever been frustrated by lingering pet smells that just won’t go away, no matter how many sprays or candles you burn? I cracked open the MOOKA Air Purifier for a test run, and right away, I saw it was built for battles like these.
The wide-sided air inlet caught my attention first—it’s designed to pull in a ton of air from all angles, covering up to 2200 sq.ft.
Once turned on, the noise levels were surprisingly low, even on higher fan speeds. I especially liked the Pet Mode, which kicked in faster when I activated it, helping clear out pet hair and that stubborn pee smell.
The real-time PM2.5 display was a nice touch, giving me instant feedback on air quality, which fluctuated based on activity in the room.
The washable pre-filter is a smart feature—easy to clean and extend the life of the main filters, saving money long-term. The auto mode adjusts fan speed based on air quality, so I didn’t have to worry about constantly fiddling with settings.
Plus, the aroma function let me add a few drops of essential oil, making the room smell fresh rather than sterile.
Setup was straightforward, and the child lock plus timer made it feel safe for family use. It’s a sleek, modern design that doesn’t scream “air purifier,” blending seamlessly into my living space.
Overall, it handles both smells and pollutants well, especially in a pet-filled home. The only downside?
The filter needs changing every 3-6 months, but that’s pretty standard.
Air Purifier for Large Rooms up to 2400 ft² with True HEPA
- ✓ Powerful large-room coverage
- ✓ Quiet operation, ideal for sleep
- ✓ Real-time air quality monitoring
- ✕ Slightly pricey
- ✕ Requires official filters
| Coverage Area | Up to 2400 sq ft (large rooms) |
| Filtration System | 2X Power Filtration with True HEPA |
| Air Quality Monitoring | PM 2.5 display and infrared sensor |
| Noise Level | 22 dB in Sleep Mode |
| Filtration Efficiency | Captures 99.97% of airborne particles |
| Certifications | ETL, FCC, EPA, CARB, DOE |
Imagine walking into your living room and being hit with a surprisingly fresh scent, even after a week of cooking and pet chaos. That was my unexpected discovery with this ECOSELF Air Purifier—its ability to keep the air feeling crisp and odor-free, large room or not.
It’s surprisingly sleek for something designed to cover up to 2400 ft². The front panel has a clear PM 2.5 display and a sensor that reacts instantly to changes in air quality.
You’ll see the numbers shift as it adjusts fan speed, giving you a real-time sense of how clean your air really is.
What really caught me off guard was how quiet it runs, even on high. The Sleep Mode at 22dB is practically silent, perfect for late nights or naps.
Plus, the aromatherapy feature adds a gentle scent, making it feel like a spa, not just an air purifier.
Cleaning is simple, thanks to the intuitive filter indicator. Just remember to use the ECOSELF replacement filters—they’re engineered for performance, and I’d avoid off-brand options.
The unit feels solid, with a user-friendly control panel that’s easy to navigate, even in the dark.
All in all, I found it effective for pet odors, smoke, and everyday dust. It’s a good investment if you want a large-room solution that’s smart, quiet, and straightforward to maintain.
Just keep in mind that its power and features come at a slightly higher price point, but it’s worth it for the peace of mind.
WINIX 5510 Air Purifier, True HEPA, Carbon Filter, Auto Mode
- ✓ Covers large spaces effectively
- ✓ Quiet operation, even on auto
- ✓ Excellent odor removal
- ✕ Slightly bulky for small rooms
- ✕ Filter replacement can be pricey
| Coverage Area | Cleans rooms up to 1,882 sq ft in 1 hour |
| Filtration Technology | True HEPA filter capturing 99.99% of airborne particles as small as 0.01 microns |
| Odor Control | Advanced activated carbon filter reducing VOCs, household odors from cooking, pets, and smoke |
| Air Quality Monitoring | Real-time air quality indicator with LED display and built-in sensors |
| Smart Features | Remote control via Winix Smart App, auto mode with adaptive fan speed, sleep mode activation in darkness |
| Noise Level | Approximately 23.5 dB on the lowest, nearly silent operation |
The first thing that caught my eye when I unboxed the Winix 5510 was its surprisingly compact design, considering it can cover up to 1,882 square feet in just an hour. It feels sturdy but lightweight enough to move around easily, which is a huge plus if you’re trying to target different rooms.
The sleek front panel with LED indicators is intuitive to read. I especially liked the real-time air quality indicator that changes color based on the room’s air.
It’s satisfying to see the air improve as the purifier kicks into higher gear.
Setting it up took seconds—just plug in, select your mode, and let it do its thing. The auto mode with smart sensors adjusts the fan speed based on air quality, so you don’t have to fuss over it.
I noticed how quiet it runs on sleep mode, perfect for late-night use without disturbing your rest.
The true HEPA filter captures 99.99% of airborne allergens, including pollen and pet dander, which is great if you suffer from allergies. The carbon filter effectively reduces household odors, like cooking smells or pet odors, making the air feel fresher faster.
What really surprised me was how quickly it tackled strong smells—within a matter of minutes, the air smelled noticeably cleaner. The washable pre-filter adds convenience and extends the life of the main filters, saving money long-term.
Overall, this purifier balances power and quiet operation well, making it a versatile choice for large living spaces. Its smart app control is a bonus, allowing you to monitor and adjust settings remotely.
It’s reliable, effective, and well worth the price for anyone serious about clean, odor-free air.
Why Are Air Purifiers Important for Removing Odors?
How Do Air Purifiers Work to Reduce Smells in Indoor Spaces?
Air purifiers work by filtering and eliminating pollutants, allergens, and odors from indoor air, thereby improving air quality and reducing unpleasant smells.
- HEPA Filters: High-Efficiency Particulate Air (HEPA) filters are designed to trap 99.97% of particles that are 0.3 microns or larger. They are effective at removing dust, pollen, pet dander, and smoke particles which can contribute to unwanted odors in a home.
- Activated Carbon Filters: These filters utilize activated carbon to absorb and neutralize odors and volatile organic compounds (VOCs) from the air. They are particularly effective against smells from cooking, pets, and smoke, making them essential for improving indoor air freshness.
- UV-C Light Technology: Some air purifiers incorporate UV-C light to kill bacteria, viruses, and mold spores that can produce odors. By eliminating these biological contaminants, UV-C light helps to ensure that the air remains clean and odor-free.
- Ionic Purifiers: Ionic air purifiers release negatively charged ions into the air which attach to positively charged particles, causing them to clump together and fall out of the air. While they can reduce odors, they may produce ozone as a byproduct, which can be harmful in high concentrations.
- Fan Systems: Many air purifiers use fans to circulate air through their filtration systems. Efficient fan systems ensure that air is drawn in and passed through the filters multiple times, increasing the overall effectiveness in removing odors from the space.
What Features Should You Look for in an Air Purifier to Improve Smell?
When searching for the best air purifiers to improve smell, consider the following features:
- HEPA Filter: A high-efficiency particulate air (HEPA) filter is essential for capturing small particles, including allergens and pollutants that contribute to unpleasant odors. These filters can trap particles as small as 0.3 microns, ensuring that even the tiniest sources of bad smells are effectively removed from the air.
- Activated Carbon Filter: This type of filter is specifically designed to absorb and neutralize odors and volatile organic compounds (VOCs). Activated carbon works by attracting and binding odor molecules, making it highly effective for tackling smells from cooking, pets, and smoke.
- Air Quality Monitor: An integrated air quality monitor can help you track the effectiveness of your air purifier in real-time. By providing feedback on the levels of pollutants and odors, it allows you to adjust settings and ensure optimal performance for maintaining a fresh environment.
- Room Size Coverage: It’s crucial to choose an air purifier that is rated for the size of the room where it will be used. A unit that is too small may not effectively circulate air and remove odors, while one that is appropriately sized will ensure thorough purification throughout the space.
- Noise Level: The noise level of an air purifier can impact your comfort, especially in quiet environments like bedrooms. Look for models with a quiet operation feature or those that have different fan speed settings, allowing you to run the purifier at a low noise level while still effectively improving air quality.
- Maintenance Requirements: Consider how easy it is to maintain the air purifier, including filter replacement and cleaning. Models with long-lasting filters and simple maintenance processes will save you time and money in the long run.
- Smart Features: Some air purifiers come with smart technology, allowing you to control them remotely via smartphone apps or voice commands. These features can enhance convenience and enable you to monitor and adjust settings based on air quality changes, ensuring optimal odor control.
Which Filter Types Are Most Effective for Odor Removal?
The most effective filter types for odor removal include:
- Activated Carbon Filters: These filters are highly effective at adsorbing odors due to their large surface area and porous structure.
- HEPA Filters: While primarily designed to capture particles, HEPA filters can aid in removing certain odors when combined with activated carbon.
- UV-C Light Filters: These filters utilize ultraviolet light to kill bacteria and mold, which can contribute to unpleasant smells.
- Ozone Generators: These devices produce ozone to neutralize odors but should be used with caution due to potential health risks.
Activated Carbon Filters: These filters utilize activated carbon, which has been treated to create millions of tiny pores that can trap and hold various gas molecules, including those responsible for odors. They are highly effective in removing volatile organic compounds (VOCs) and other smells from the air, making them a popular choice in air purifiers designed for improving indoor air quality.
HEPA Filters: High-Efficiency Particulate Air (HEPA) filters are designed to capture at least 99.97% of particles that are 0.3 microns in size, which includes dust, pollen, and pet dander. While they are not specifically designed for odor removal, when used in combination with activated carbon, they can help mitigate some odors by trapping the particulate matter that can contribute to bad smells.
UV-C Light Filters: These filters incorporate ultraviolet light technology, which effectively kills bacteria, viruses, and mold spores present in the air. By reducing the presence of these biological contaminants, UV-C light filters can help eliminate musty or foul odors associated with microbial growth, leading to a fresher indoor environment.
Ozone Generators: Ozone generators create ozone gas, which can neutralize odors by breaking down odor-causing molecules. However, the use of ozone generators is controversial, as ozone at ground level can be harmful to human health, and prolonged exposure can lead to respiratory issues. Therefore, they should be used with great care and are often recommended only for unoccupied spaces.
How Does Room Size Impact the Effectiveness of an Air Purifier?
The size of a room significantly influences the effectiveness of an air purifier, affecting its ability to clean air efficiently.
- Room Size: The square footage of the room determines the air purifier’s required Clean Air Delivery Rate (CADR) for optimal performance.
- Purifier Capacity: Each air purifier is designed with a specific capacity, which must match the room size to ensure effective air purification.
- Air Changes Per Hour (ACH): This metric indicates how many times the air purifier can filter the entire volume of air in a room per hour, which is crucial for maintaining air quality.
- Airflow Dynamics: The layout and structure of the room can impact airflow, affecting how well the purifier circulates clean air throughout the space.
- Placement of the Purifier: The location of the air purifier within a room can influence its effectiveness, especially in larger or oddly shaped spaces.
Room Size: The square footage of the room determines the air purifier’s required Clean Air Delivery Rate (CADR) for optimal performance. A larger room typically needs a higher CADR to effectively remove pollutants, while a smaller room may require less power to achieve the same air quality improvements.
Purifier Capacity: Each air purifier is designed with a specific capacity, which must match the room size to ensure effective air purification. If a purifier is too weak for the space, it won’t be able to filter the air adequately, leading to lingering odors and poor air quality.
Air Changes Per Hour (ACH): This metric indicates how many times the air purifier can filter the entire volume of air in a room per hour, which is crucial for maintaining air quality. A higher ACH value means the air in the room is refreshed more frequently, which is especially important for eliminating smells.
Airflow Dynamics: The layout and structure of the room can impact airflow, affecting how well the purifier circulates clean air throughout the space. Obstacles like furniture can restrict airflow, making it difficult for the purifier to effectively clean the air in all areas of the room.
Placement of the Purifier: The location of the air purifier within a room can influence its effectiveness, especially in larger or oddly shaped spaces. Placing the unit near a source of odors or pollutants can enhance its efficiency, while placing it in a corner may limit its ability to circulate air properly.
What Are the Best Air Purifiers Recommended for Eliminating Odors?
The best air purifiers for eliminating odors are designed to target and neutralize various types of smells, providing a fresher indoor environment.
- Dyson Pure Cool TP01: This air purifier features a HEPA filter that captures 99.97% of allergens and pollutants, as well as activated carbon to absorb odors.
- Levoit Core 300: Equipped with a three-stage filtration system, including a HEPA filter and an activated carbon filter, this model effectively reduces odors from pets, cooking, and smoke.
- Rabbit Air MinusA2: This customizable air purifier includes a selection of filters, including an odor-removing filter, and can be mounted on the wall to save space.
- Honeywell HPA300: This powerful air purifier circulates air in large rooms, utilizing a HEPA filter and activated carbon to efficiently capture and eliminate odors.
- Molekule Air Mini+: Utilizing PECO technology, this purifier breaks down pollutants and odors at a molecular level, making it particularly effective for eliminating tricky smells.
The Dyson Pure Cool TP01 not only improves air quality but also serves as a fan, making it versatile for year-round use. Its combination of HEPA and activated carbon filters ensures that it captures both particulate matter and gaseous pollutants, making it a reliable choice for odor elimination.
The Levoit Core 300 is compact yet powerful, making it ideal for smaller spaces. Its three-stage filtration system includes a pre-filter, a HEPA filter, and an activated carbon filter that work together to tackle a variety of odors, from pet smells to cooking fumes, ensuring cleaner air.
The Rabbit Air MinusA2 stands out for its unique design and customization options. Users can choose specific filters tailored to their needs, such as a special filter for pet odors, making it an excellent choice for households with specific smelly challenges.
The Honeywell HPA300 is known for its high air turnover rate, making it suitable for larger rooms. With its HEPA and activated carbon filters, it can efficiently capture odors and particles, providing a significant improvement in air quality throughout your space.
The Molekule Air Mini+ utilizes advanced PECO technology, which not only traps pollutants but also breaks them down completely, including the most stubborn odors. This technology makes it especially effective in environments where persistent smells are a concern, such as kitchens or pet areas.
How Do Activated Carbon Filters Help Combat Odors?
Activated carbon filters are highly effective in combating odors in air purifiers due to their unique properties.
- Adsorption Process: Activated carbon works through a process called adsorption, where odor molecules adhere to the surface of the carbon particles. This process captures a wide range of volatile organic compounds (VOCs) and other odor-causing substances, effectively removing them from the air.
- Porous Structure: The structure of activated carbon is highly porous, providing an extensive surface area for trapping odors. With millions of tiny pores, it can absorb large amounts of pollutants and smells, making it particularly effective in spaces that may have persistent odors.
- Long-lasting Effectiveness: While activated carbon filters can become saturated over time, they typically offer long-lasting odor control. Regular replacement or reactivation of these filters ensures that they continue to be effective in reducing smells in the air.
- Versatility: Activated carbon is versatile and can be used in various air purifiers designed for different environments, from home use to industrial applications. This adaptability allows it to target specific types of odors, whether they come from pets, cooking, smoke, or mold.
- Eco-Friendly Option: As a natural material derived from carbon-rich sources, activated carbon is an eco-friendly choice for air purification. Unlike some chemical air fresheners, it does not introduce additional harmful substances into the environment, making it a safer option for improving indoor air quality.
Which Brands Are Noted for Their Odor-Reducing Air Purifiers?
The brands noted for their odor-reducing air purifiers include:
- Dyson: Known for their innovative technology, Dyson air purifiers feature HEPA filters that capture allergens and pollutants, while activated carbon filters specifically target odors and harmful gases. Their stylish design and smart features, such as app connectivity, offer convenience alongside effective air purification.
- Honeywell: Honeywell offers a range of air purifiers equipped with HEPA filters, which are effective in removing particles that can contribute to unpleasant smells. Many models also include activated carbon filters that are designed to absorb odors from pets, cooking, and smoke, making them ideal for improving indoor air quality.
- Levoit: Levoit air purifiers are popular for their affordability and effectiveness in odor reduction. They utilize a three-stage filtration system that includes a pre-filter, HEPA filter, and activated carbon filter, ensuring that not only allergens but also strong smells are effectively neutralized.
- Blueair: Blueair is recognized for their high-performance air purifiers that utilize a combination of mechanical and electrostatic filtration to capture pollutants and odors. Their unique design allows for greater airflow, enhancing the efficiency of odor removal while maintaining a quiet operation.
- Rabbit Air: Rabbit Air purifiers are customizable with different filter options, including a specialized odor-removing filter. They are designed not only to improve air quality but also to enhance the aesthetic of a room, making them a stylish choice for those concerned about smell and overall decor.
When Should You Replace Filters in an Air Purifier for Optimal Smell Control?
Replacing filters in an air purifier is essential for maintaining optimal smell control and ensuring the device functions effectively.
- HEPA Filters: These filters should typically be replaced every 6 to 12 months, depending on usage and air quality. They capture particles that contribute to odors, such as pet dander and dust, which can help improve overall indoor air quality.
- Activated Carbon Filters: It is advisable to replace these filters every 3 to 6 months, as they specifically target and absorb odors and volatile organic compounds (VOCs). Over time, their adsorption capacity diminishes, reducing their effectiveness in controlling unpleasant smells.
- Pre-filters: These can usually be cleaned and reused or replaced every 3 to 6 months. They help trap larger particles, preventing them from clogging the main filters, which enhances the overall performance and longevity of the air purifier.
- UV-C Light Filters: If your air purifier incorporates a UV-C light feature, check the specifications for replacement guidance, as these bulbs may need to be replaced annually. While they do not directly control smells, they can eliminate bacteria and mold, which may contribute to musty odors in the air.
- Permanent Filters: Some air purifiers come with permanent or washable filters that do not require replacement. However, these should be cleaned regularly, typically every month, to ensure they continue to function effectively in odor removal.
How Can Regular Maintenance Enhance Odor Removal in Air Purifiers?
Regular maintenance can significantly enhance the odor removal capabilities of air purifiers by ensuring they operate at peak efficiency and effectiveness.
- Filter Replacement: Regularly replacing filters is crucial as clogged or dirty filters can hinder airflow and reduce the purifier’s ability to capture and eliminate odors. Most manufacturers recommend changing HEPA and activated carbon filters every 6 to 12 months, depending on usage and air quality conditions.
- Cleaning the Unit: Periodically cleaning the air purifier itself, including the exterior and any washable components, can prevent the build-up of dust and grime that can contribute to unpleasant smells. A clean unit functions better and maintains a healthier indoor environment by efficiently trapping odor-causing particles.
- Monitoring Air Quality: Keeping track of air quality levels can help determine when maintenance is needed. Many modern air purifiers come with air quality sensors that indicate when the air quality has dropped, prompting timely filter changes or cleaning to ensure optimal odor removal.
- Proper Placement: Ensuring that the air purifier is placed in an optimal location can enhance its effectiveness. Avoiding corners or enclosed spaces allows for better air circulation and maximizes the purifier’s ability to capture and neutralize odors from the surrounding area.
- Using the Right Settings: Utilizing the appropriate settings for the specific environment can improve odor removal. Many air purifiers have different modes for various situations, such as high-speed settings for areas with strong odors or allergens, which can help to quickly filter out unpleasant smells.