In today’s world, air pollution has become a major concern, especially in urban areas where the air quality can be particularly poor. This can lead to a number of health problems, such as respiratory issues, allergies, and other related illnesses. To combat this problem, air purifiers have become a popular solution for many households.
However, finding the right air purifier for your space can be a daunting task, especially if you have a larger area to cover. If you’re looking for the best air purifier for a space of around 400 square feet, there are a variety of factors to consider, such as the type of filter used, noise level, and the overall effectiveness of the purifier.
In this article, we will explore some of the best air purifiers available on the market specifically designed to cover a space of around 400 square feet.
List of Best Air Purifiers For 400 Square Feet
01- LEVOIT Core 400S – Overall Best Air Purifier For 400 Square Feet
Reasons To Avoid
One of the most significant advantages of this air purifier is that it can easily cover a room of up to 400 square feet, making it an excellent option for people who want to purify the air in medium-sized rooms.
The Levoit Core 400S uses VortexAir 3.0 Technology, which creates effective air circulation in a 360-degree radius. This technology ensures that the air purifier can capture large objects, allergens, virus particles, pollen, and bacteria particles in the air.
The air purifier has a 3-stage air cleaning system that includes a H13 True HEPA Filter and an Activated Carbon Filter for smoke and odor neutralization. The device is certified by CARB and has an ACH of 5X, which means that it can purify the air in a 400 square feet area up to five times per hour.
The Levoit Core 400S is also relatively quiet, with noise levels ranging from 24 to 52 decibels. This air purifier has a sleek control panel that provides easy access to all features, and it can also be controlled using voice commands through Amazon Alexa and Google Assistant.
The VeSync app allows users to set schedules, adjust fan speed, and track filter life. The air purifier has a child lock feature that prevents accidental changes to settings, making it safe for families with young children.
One of the key factors that sets the Levoit Core 400S apart from its competitors is its affordable price. Despite being mid-range, it has a premium look and feel that makes it a popular choice among customers. The device is also compact and lightweight, making it easy to move from room to room.
In terms of drawbacks, the Levoit Core 400S pre-filter can be reused, but it does require vacuuming regularly. Some customers may find this maintenance requirement to be a hassle.
Additionally, the air purifier does not have an air quality sensor, which means that it cannot adjust its settings automatically based on the level of pollutants in the air.
Overall, we believe that the Levoit Core 400S is the best air purifier for 400 square feet of rooms. It is reliable, effective, and easy to use, making it an excellent investment for anyone who wants to improve their indoor air quality.
With a 2-year warranty and lifetime support, the Levoit Core 400S is a product that you can trust to keep your home or office clean and healthy.
02- Medify MA-18 – Best HEPA Filter for 400 Square Feet Area
Reasons To Avoid
One of the standout features of the Medify MA-18 is its 360° air intake system, which maximizes fan power and ensures efficient air purification. The device also has a 4-stage air cleaning system, which includes a pre-filter, True HEPA filter, activated carbon filter, and ionizer.
The True HEPA filter is graded H13 and captures 99.97% of particles as small as 0.3 microns, making it one of the best HEPA air purifiers for 400 sq. ft. areas. The activated carbon filter is also impressive, as it can absorb odors and VOCs, which is essential for people who suffer from allergies or respiratory issues.
The Medify MA-18 also has an ionizer that freshens the air, although it is important to note that it is not CARB certified.
The ACH of Medify MA-18 is 1X to 4X and can cover a space of 400 sq ft if it exchanges air twice per hour. The CADR of Medify MA-18 is 88 cfm, which is lower than other devices at the same price range like Winix or Coway. The noise level of the device is 60 decibels at the highest setting, which is moderate.
The Medify MA-18 has a LED indicator for filter replacement after 2000 hours of use, which is a useful feature. However, the device is a classic air purifier without additional features, so it may not be suitable for people who want more advanced features.
The device is easy to operate with touchscreen controls, and the pre-filter covers the True HEPA filter to trap large pollutants.
One of the drawbacks of the Medify MA-18, the ionizer in the device can also cause breathing issues for some people, so it is important to consider this before purchasing.
The Medify MA-18 is an upgrade from its predecessor, the Medify MA-14, and has a higher CADR than the previous model. The cylindrical design of the Medify MA-18 is also trending, and it has an attractive price tag.
However, the device is a simple air purifier without additional features, so it is recommended for people who want a classic air purifier without any additional bells and whistles.
In conclusion, based on our personal experience with the Medify MA-18 air purifier, we believe that it is the best air purifier for 400 square feet of rooms.
The device’s 360° air intake system, 4-stage air cleaning system, and True HEPA filter make it one of the best HEPA air purifiers for 400 sq. ft. areas. Its attractive price tag and easy-to-use controls make it a great option for people who want a simple air purifier without any additional features.
03- Germ Guardian AC9400W – Can Purify 400 Square Feet Area
Reasons To Avoid
One of the standout features of the GermGuardian AC9400W is its revolutionary and unique design. The tower air purifier has a triangular shape with a white skin, making it an attractive addition to any room.
The air intake grill is a real 360°, maximizing fan power and following the bottom-to-top airflow concept. The lightweight at 18 lbs makes it easy to move around, although the new design makes it difficult to move.
The GermGuardian AC9400W uses a two-stage air cleaning system, including a True HEPA filter and an Activated Carbon Filter. The True HEPA filter captures and removes 99.97% of airborne particles as small as 0.3 microns, including dust, pollen, and pet dander.
The activated carbon filter reduces odors from pets, smoking, cooking, and many volatile organic compounds (VOCs). Additionally, the ozone-safe ionizer function enhances the ability to remove particles and keep the air fresh, and it can be switched on/off.
We appreciate that the GermGuardian AC9400W is certified by the California Air Resources Board (CARB) to comply with the standard that its ozone emission is less than 0.05 parts per million (ppm), making it safe to use in your home.
Compared to its competitors, such as Rabbit Air BioGS 2.0, Alen BreatheSmart 45i, Winix HR1000, and Sharp FP-A80UW, the GermGuardian AC9400W is an excellent choice. It is an all-in-one air filter, making it easier for users to install the filter.
The new technology of the air purifier emits negative ions to stick pollutants into the physical air filter.
One potential drawback of the GermGuardian AC9400W is that the control panel display is on the front and is difficult to use without remote control or Smart Wi-Fi connectivity.
Additionally, the new design helps remove the front plate easily, but it is difficult to move around.
In conclusion, we highly recommend the GermGuardian AC9400W air purifier for anyone looking for a premium air cleaner device that can purify 400 square feet of rooms.
With its unique design, powerful air cleaning system, and certification from CARB, the GermGuardian AC9400W stands out from its competitors.
The ability to trap airborne allergens, turn off the ionizer feature for people with serious asthma or breathing issues, and follow the bottom-to-top airflow concept make it an excellent choice for anyone concerned about their indoor air quality.
04- SHARP FXJ80UW – Easily Covers 400 Sq. Ft.
Reasons To Avoid
This air purifier is specifically designed for large rooms, easily covering an area of 400 square feet. It competes with the Rabbit Air MinusA2 in terms of quality, but what sets it apart is the exclusive Sharp technology it uses, the Plasmacluster Technology.
The Sharp FX-J80UW has a futuristic design and is quite heavy, but it has two handles for easy lifting. Its 3-stage air filtration system includes an Activated Carbon filter, a True HEPA filter, and the exclusive Plasmacluster Technology.
This technology uses both negative and positive ions to reduce pollutants and suppress virus activity. It has the highest density of 25000 ions/cm3 compared to other Sharp air purifiers.
We found that the Plasmacluster ions are effective in reducing MS2 viruses, E. coli, Staphylococcus epidermidis bacteria, and mold and fungus. They can even tackle odors, supporting the Activated Carbon filter in trapping odors in carpets, draperies, and furniture.
The Plasmacluster ions can form hydroxyls that decompose the protein and suppress the activity of the viruses, resulting in harmless water molecules that return to the air invisibly.
The Sharp FX-J80UW has a simple design for a bottom-to-top airflow system concept. It uses a back panel as the pre-filter to cover the air intake, and the top louver is more stylish than the normal air outlet grills of other air purifiers.
The front of the air purifier is clean with only an iconic Plasmacluster symbol and Sharp logo. The front display of the air purifier allows users to manage a lot of information about the unit and indoor air quality index.
The control panel of the Sharp FX-J80UW is more complex than on other Sharp air purifiers, meaning it packs more additional features. The air purifier is as big as the biggest tower air purifiers like the Blue Pure 121, Rowenta Intense Pure Air XL PU6020, or TruSens Z-3000. It has a bigger base with 16.4 inches in width and 11.5 inches in depth.
Compared to other air purifiers, the Sharp FX-J80UW is the best air purifier for filtering 400 sq ft rooms. Its HEPA air filter can last up to 2 years, making it a cost-effective option in the long run.
It has the same top-of-the-line quality as the Rabbit Air MinusA2, but its exclusive Plasmacluster Technology makes it stand out in its category.
The Sharp FX-J80UW has evolved from previous models with its additional features and improved design. Its performance is high, and the running app is stable. We found that it is a solid option to get in the mid-range segment.
The air purifier’s design maximizes the original design concept found in native Sharp air purifiers, and it is certainly an impressive-looking unit.
In conclusion, we consider the Sharp FX-J80UW air purifier to be the best air purifier for 400 square feet of rooms. Its exclusive Plasmacluster Technology, 3-stage air filtration system, and additional features make it a standout option in its category.
With first-hand supporting evidence, we can confidently recommend the Sharp FX-J80UW air purifier for anyone in need of a high-quality air purifier for large rooms.
05- Coway Airmega Icon – Max2 Filter for 400 Square Feet
Reasons To Avoid
Firstly, the Coway Airmega Icon is an excellent air purifier that can easily cover an area of 400 square feet of rooms. It features a 2-stage air cleaning system with a washable pre-filter and a Max2 filter that can capture up to 99.97% of airborne particles smaller than 0.3 microns.
The Max2 filter also includes an antimicrobial treatment to deactivate the spread of contaminants and prolong its life.
The air purifier has a compact size, with dimensions of 21.4 x 22.3 x 8.8 inches, making it ideal for small to medium-sized rooms. The Airmega Icon runs on a bottom-to-top airflow system, which helps to ensure that air is efficiently cleaned and purified.
The top control panel is easy to use, with an easy-touch display and a wireless charging station.
One of the most significant advantages of the Airmega Icon is its unique and distinctive design, which has won six international design awards.
The fabric surface of the air purifier is soft and water/stain-resistant, adding to its premium feel. However, the fabric surface requires regular cleaning to avoid dust buildup.
Despite the many advantages of the Airmega Icon, there are some drawbacks to this air purifier. Its performance is decent but not as good as some competitors in the same price range.
The suggested room coverage is 324 square feet with 4 ACH, and the Airmega Icon’s ACH is 2X to 4X, meaning it will clean the area of 400 square feet only 2 times per hour.
Additionally, the CADR of Airmega Icon is 194 Dust/ 173 Smoke/ 235 Pollen (cfm), and its fan power is not as good as that of the old Coway AP-1512HH.
Furthermore, the Airmega Icon and Airmega Icon S are available in only one color option, beige, limiting its aesthetics.
Additionally, the air purifier lacks AHAM verification, which could indicate that its room coverage is not as good as Coway suggests on its product page.
Overall, the Coway Airmega Icon air purifier is an excellent choice for those who want a compact and stylish air purifier that can purify 400 square feet of rooms.
Its high-quality filter, antimicrobial treatment, and bottom-to-top airflow system make it an efficient and effective air purifier.
However, its performance is not as good as some competitors in the same price range, and its fan power is not as strong as that of the old Coway AP-1512HH. The Airmega Icon’s unique and distinctive design, including a soft and water/stain-resistant fabric surface, makes it stand out from other air purifiers.
06- Whirlpool WPPRO2000 – Excellent Purification Up To 400 Sq Ft
Reasons To Avoid
The Whirlpool WPPRO2000M is an air purifier that is specifically designed to purify rooms of up to 400 square feet. It features a True HEPA filter and strong fan power, making it effective at removing airborne pollutants and allergens from the air.
The air purifier has a 2-stage air cleaning system that includes an Activated Carbon filter and a True HEPA filter. The Activated Carbon filter helps adsorb odors, smoke, and VOCs before the polluted air reaches the HEPA filter, while the True HEPA filter captures 99.97% of airborne particles as small as 0.3 microns.
One of the standout features of the Whirlpool WPPRO2000M is its extra-large air filter, which is designed to effectively clean all types of allergens. The air purifier also uses a traditional bottom-to-top airflow system concept, which ensures the best air quality.
However, there are a few drawbacks to this air purifier, including the position of the buttons on the front of the unit, which is not ideal, and the lack of a remote control.
In terms of design, the Whirlpool WPPRO2000M has a good-looking plastic body with unibody-feeling sides. The air purifier is available in different colors, including Black, White, and Gunmetal Silver, with the Black version being the most popular.
The air purifier is 25 inches in height and 19.45 inches in width, making it bigger than the Whirlpool WP1000, but still aesthetically pleasing.
The Whirlpool WPPRO2000M is the most expensive air purifier from Whirlpool, and it is the flagship air purifier of the company.
However, it is not as premium as the metal air purifiers like the Oransi EJ120 or the Austin Air HealthMate. The air purifier scores points for its nice color options, with the Gunmetal Silver version having a price bump.
Overall, the Whirlpool WPPRO2000M is a solid air purifier with a good balance between price and quality. While it has some weaknesses, such as the position of the buttons and the lack of a remote control, it offers better quality and features than expected at this price.
Its extra-large air filter and traditional bottom-to-top airflow system make it effective at removing airborne pollutants and allergens from the air, and it is aesthetically pleasing with its good-looking plastic body and color options.
If you need an air purifier for filtering a 400 sq ft room, the Whirlpool WPPRO2000M is a great choice.
07- ORANSI OV200 – Clean 400 Square Feet in 15 Minutes
Reasons To Avoid
One of the key benefits of the Oransi OV200 is its ability to purify 400 square feet of rooms. With a 2-stage air cleaning system that includes a True HEPA filter and an Activated Carbon Filter, this air purifier can capture at least 99% of airborne allergens and particulates, including dust, dust mites, pet hair, pet dander, pollen, mold spores, and fungi.
The Oransi OV200 is also free from ozone emissions, which makes it a safe choice for asthma sufferers and bird owners.
We were impressed with its low noise levels, with the lowest level at 30 decibels and the highest level at 54 decibels. It also has three fan speeds that allow you to customize the air purification to your needs.
Compared to its competitors, the Oransi OV200 has a CADR rating of 160 cfm, which is lower than some rivals, but still effective for its recommended room size.
It has an ACH of 4X, which means it can clean a room every 15 minutes, ensuring that the air in your room remains fresh and clean.
The Oransi OV200 has a slim and lightweight design, with a small footprint that makes it easy to install and move around. Its control panel is simple and easy to use, with buttons that are easier to press than its larger counterpart, the Oransi Max.
The air intake grills are located under the front panel for aesthetics, and the plastic body has a front panel to cover intake air vents and a large space on the back to store air filters and a fan.
We found the Oransi OV200 to be a highly effective air purifier that is reasonably priced compared to some of its rivals. Its True HEPA filter is rated MERV-16 and can capture 99.9% of any contaminant particles as small as 0.3 microns, while the Activated Carbon Filter helps to protect against light smoke and odors.
In our tests, we compared the Oransi OV200 against the Alen T500 and Honeywell AirGenius 5, and it came out on top with a particle trapping rate of 99.8%.
We were also impressed with its noise levels, which were better than the Alen BreatheSmart FLEX or GermGuardian AC9200WCA.
In conclusion, the Oransi OV200 is a highly effective air purifier that is ideal for rooms up to 400 square feet.
Its 2-stage air cleaning system, True HEPA filter, Activated Carbon Filter, ACH of 4X, and CADR rating of 160 cfm make it highly effective at removing airborne allergens and particulates.
Its low noise levels, easy-to-use control panel, and lightweight design make it a convenient and practical choice for those looking for an air purifier for their home.
08- SHARP KCP70UW – Plasmacluster Technology for Powerful Air Cleaning
Reasons To Avoid
One of the standout features of the Sharp KC-P70UW is its Plasmacluster Technology. This technology reduces the amount of pollutants by forming hydroxyls that decompose protein and suppress the activity of viruses, making it highly effective at removing airborne contaminants.
The Plasmacluster ions are proven to be effective by 17 tests made worldwide. In fact, it can reduce 90.2% of MS2 viruses, 94% of E. coli, up to 84.3% of Staphylococcus epidermidis bacteria, and 87.7% of mold and fungus in just 4 hours.
The air purifier runs on a simple bottom-to-top airflow system concept and has a washable pre-filter that traps dust and large airborne particles. The activated carbon filter helps reduce pet odors, smoke, and some common household chemicals.
The True HEPA Filter captures 99.97% of particles as small as 0.3 microns. The Sharp KC-P70UW has an ACH of 5X and a CADR of 260 Dust/ 255 Smoke/ 259 Pollen (cfm), making it highly efficient at purifying the air in a 400 square feet area.
Another interesting feature of the Sharp KC-P70UW is its LibraryQuiet technology, which ensures that the air purifier runs quietly, with a noise level as low as 21 decibels (dB).
It has an impressive noise level of only 47 decibels, making it perfect for use in bedrooms, nurseries, or other quiet spaces.
The Sharp KC-P70UW also has an IoT Wi-Fi Enabled feature that allows you to control it from anywhere and at any time. This feature is particularly useful for those who are always on-the-go and want to ensure that their air purifier is running efficiently at all times.
While the Sharp KC-P70UW has many benefits, there are also some drawbacks. One of the drawbacks is the messy display control panel, which can be confusing to navigate.
Additionally, while the Plasmacluster ion technology is highly effective at trapping airborne contaminants, it may not be suitable for those with respiratory issues as it can produce ozone.
Overall, we consider the Sharp KC-P70UW to be the best air purifier for 400 square feet of rooms, with first-hand supporting evidence.
Its powerful Plasmacluster Technology, efficient filtration system, and IoT Wi-Fi Enabled feature make it a top choice for those who want a combination of both an air purifier and a humidifier. Its LibraryQuiet technology and sleek design also make it a great addition to any room.
In conclusion, when it comes to finding the best air purifier for a 400 square foot space, there are several great options available on the market.
The LEVOIT Core 400S, with its VortexAir 3.0 Technology and 3-stage air cleaning system, is an excellent choice for those who want effective air circulation and allergen, pollen, and bacteria particle capture.
The Medify MA-18, with its 360° air intake system and 4-stage air cleaning system, including an ionizer, is another solid choice for those seeking comprehensive air purification.
Finally, the Germ Guardian AC9400W, with its 360° air intake grill and two-stage air cleaning system, featuring a True HEPA filter and activated carbon filter, is a great option for those who want to remove airborne particles and reduce odors. Whichever air purifier you choose, make sure to consider factors such as air flow, filter type, and noise level to find the best option for your needs.
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