Top 6 Air Purifier Humidifier Combos of 2021

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Each year, millions of Americans spend countless hours trying to refresh the air in their homes or bring their IAQ levels in check. That can be a tough task unless you have the right equipment, and running two machines simultaneously is far from ideal. The best air purifier humidifier combo can remove pollutants while adding humidity to the air, and we’ve compiled a list featuring five of the top models on the market.

6 Best Air Purifier Humidifier Combos

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Sharp KC-860U

  • CADRSmoke/Dust/Pollen: 220/231/245
  • Speeds: 3
  • HEPA: True
  • Water Tank: 1 gallon
  • Coverage: 341 sq. ft.
  • Warranty: 1 year

BONECO H400

  • Speeds: 6
  • Water Tank: 1 gallons
  • Coverage: 341 sq. ft.
  • Warranty: 1 year

Venta LW45

  • Speeds: 3
  • Water Tank: 3.1 gallons
  • Coverage: 600 sq. ft.
  • Warranty: 3 years

Brondell O2+ Revive

  • CADRSmoke/Dust/Pollen: 230
  • Speeds: 4
  • Water Tank: 0.8 gallons
  • UV: Yes
  • Coverage: 318 sq. ft.
  • Warranty: 1 year

LG Signature

  • CADRSmoke/Dust/Pollen:205/230/245
  • Speeds: 5
  • HEPA: Dual
  • Water Tank: 0.9 gallons
  • Coverage: 600 sq. ft.
  • Warranty: 3 years

Dreval D-950

  • CADRSmoke/Dust/Pollen: 220
  • Speeds: 3
  • HEPA: Yes
  • UV: Yes
  • Coverage: 430 sq. ft.
  • Warranty: 2 years

The Best Air Purifier Humidifier Combo

#1 Sharp Plasmacluster Triple Action Air Purifier

Sharp isn’t the first name that springs to mind when homeowner’s think of indoor air quality, but they produced several impressive systems over the years. Our top pick from the company, the Sharp Plasmacluster KC-860U, is also the best air purifier and humidifier combo on the market today.

The Plasmacluster is an air purifier that lives up to its name by using ionization to cleanse the air. Sharp’s Ion Technology actively fights germs and mold in the room where it’s placed and can even neutralize bad odors from carpets and furniture in your home. It’s their largest combo system with a coverage range of 341 square feet as well.

Ionization is just one stage on this air purifier as a permanent micro-mesh pre-filter handles the air coming into the machine. A true HEPA filter blocks 99.97% of airborne pollutants in the air, while an activated carbon filter helps reduce odors. Both are rated for 5 years, and the humidifier's wick will last for 2 years before needing to be replaced.

While the company didn’t provide many details on the humidifier, it has a removable 4.25-quart tank and releases an ultrafine mist. It’s also extremely quiet, with a decibel rating of around 28dBA for cleaning and humidify mode on low. The Sharp KC-860U has built-in temperature, dust, and humidity sensors with a CADR rating of 231 for dust, 220 for smoke, and 245 for pollen.

Our Verdict

With the ability to reduce E.Coli by up to 94%, this air purifier is more than capable of freshening up the air in your home. As its ARB-certified, Ozone won’t be a concern, and while the filters are pricey, they will outlast ones from the competition. The only knock on this system is a short 1-year warranty as it’s responsibly priced, easy to use, and well-built.

The Best Hybrid Humidifier for Smart Homes

#2 BONECO H400 Humidifier and Air Purifier

Boneco Air-O-Swiss is another company that produces air washers, including a hybrid series of humidifiers. The H400 is a 3-in-1 system that can purify and humidify the air, and it’s one of the best options available if you live in a connected home.

This compact system is another hybrid humidifier that takes a more natural approach to cleansing the air. In this case, it’s an evaporator mat that rotates through the water to humidify the air. There’s also a permanent pre-filter, but no high-tech extras like UV-C filtration or ionization. It’s capable of removing larger particles from the air, however, and has a solid set of features as well.

If you plan to use this air washer while you sleep or have a newborn, you’ll appreciate the Sleep and Baby profiles. Auto mode is present, and you can control the system from a manual dial on the front or through the Boneco App via Wi-Fi. The H400 has six speed settings with a decibel rating of 25dBA on low and 55dBA on high.

Aromatherapy is possible with this humidifier through a medicine cup feature, and it has the largest tank of any system on our list at 3.17 gallons. The output is listed at 2.54 gallons, and it can cover rooms up to 600 square feet. The tank is fully detachable and just as easy to fill as the machine is to clean, thanks to dishwasher-safe parts.

Our Verdict

There aren’t many reviews of this particular system, but the H300 and several of the company’s other air washers have been well-received. The Boneco H400 is a bit pricey, given its prowess in the purification department, but still provides a great value if you’re in need of a connected humidifier that can help improve the air quality in your home.

The Best Filter-Free Humidifier and Purifier

#3 VENTA LW45 Comfort Plus Airwasher

Venta’s air washing systems are an interesting alternative to traditional air purifiers. While they have machines designed for a variety of spaces, the LW45 Comfort Plus is our top pick and a system to consider if you prefer natural purification instead of charcoal, ions, or UV-C light.

Whereas some companies require you to change filters every few months or perform a great deal of maintenance, that isn’t the case with the Venta LW45 Comfort Plus. You simply need to fill this system with tap water as required, and it will naturally reduce pollutants in your home by up to 60% while humidifying the air.

The LW45 uses a spinning disk stack to purify the air, so there are no chemicals used or filters to change. It’s quiet at 24dBA on low, so it can run while you sleep, and the 2.2-gallon tank holds plenty of H2O. Controls are handled through a small digital display on top of the system, which allows you to set the humidity level, speed or access a few modes.

There are three speeds on this air purifier and two modes with Sleep Mode and Automatic Mode. The former is self-explanatory, while the latter adjusts the power based on the room's humidity levels. Other features to note include auto shut-off, low water notification, and an aromatherapy function. This system is available in Black or White and designed for areas up to 645 square feet.

Our Verdict

While the Venta LW45 Comfort Plus is more of a humidifier than an air purifier compared to other systems on our list, it’s the easiest one to maintain. The Comfort Plus also provides faster humidification than the previous models. If you like how this model performs but want something a bit smaller and cheaper, the LW25 is also an option.

A Dual HEPA Filter Humidifier from Brondell

#4 Brondell Air Purifier O2+ Revive Air Purification System

Humidifier Air Purifiers are a niche product, so it’s not uncommon to find systems that lean more towards one function than another. Brondell decided to focus on purification with the O2+ Revive Air Purification System, a machine that takes multi level filtration to a whole new level.

It’s not hard to find an air purifier with 2-3 stages of filtration, and the O2+ Revive has two. While that may not seem impressive, each of those stages contains several layers of filtration. In the front stage, you’ll find a mesh pre-filter, a granulated carbon filter, and a True HEPA filter. The rear stage also has a True HEPA filter along with a special off-gassing reduction filter.

If five levels of high-quality filtration aren’t enough to impress you, maybe the dual intake will. The PR50-W has a rating of 230 CADR and is powerful enough to refresh the air in a 600 square foot room three times per hour. Other flagship features include air quality indicator lights, an auto-off timer, four modes, and an easy to use touch control panel.

Our Verdict

The Brondell O2+ Revive is a highly efficient air purifier that’s ideal for homeowners that want to reduce odors from things like cigarette smoke or suffer from allergies. It’s competitively priced for its size, but you’ll want to keep replacement filters in mind if you plan to operate it daily. According to the company, they will need to be replaced every 4-12 months, depending on your usage.

The Best Air Ultraviolet Humidifier Combo

#5 LG Signature Smart Air Purifier

When budget is no object, there are some interesting products from companies more known for their high-tech electronics than humidifiers. LG’s entry into the world of hybrid air purifiers comes from their Signature Series, and it’s an impressive product that ensures the air reentering your home is clean.

One of the problems with humidifiers are germs, which can accumulate in water tanks before being blown back into your home. This system combats that by sterilizing the 0.8-gallon water tank while purified air keeps the filters dry. A sensor ring around the top glows a particular color when particulates are detected, whether they are PM10, PM2.5, or PM1.0 in size.

Humidity is handled through a rotating Watering System, which can atomize 18 liters of water per hour. The bucket is removable or can be filled from the top, and you can control the unit with a remote, through touch-based controls or your smartphone via SmartThinQ technology. The Rain View Window is also a nice design element as it allows you to take in the action.


When it comes to tech specs, this system doesn’t disappoint with both odor and dust sensors. It has four speeds, including a high-powered Turbo Mode, a Child Lock feature, and a 12-hour sleep timer. An efficient inverter powers this 2-in-1 purifier, and it’s safe to use indoors as it produces less than 0.01 PPM of Ozone. The listed CADR in Turbo mode is 205 for smoke, 230 for dust, and 245 for pollen.

Our Verdict

The LG Signature Smart Air Purifier has more tricks up its designer sleeves than any other system on the market. While it’s expensive, it has five filters, including a permanent 1.0 PM filter, and performs as advertised against household dust, pollen and odors. The short 1-year warranty is a disappointment, but the inverter motor sports a 10-year guarantee.

An Excellent Purifier for VOCs and Formaldehyde

#6 Dreval D-950 Air Purifier and Humidifier Combo

Dreval is a company that specializes in purification, whether it’s the water you drink or the air in your home. While they may not have the name brand recognition as other companies on our list, the D-950 is an interesting alternative for small to medium-sized spaces.

Every air purifier has multiple filtration stages, but Dreval takes things a step further with the D-950. This 6-stage system can remove 99.97% of pollutants from the air in your home and is designed for areas up to 430 square feet. It has three standard speeds with Low, Medium, and High, while the humidifier has a removable tank. It’s ultrasonic, but we were unable to find any more details on this feature.

Inside the D-950 is a high-efficiency HEPA filter, a cellular activated carbon filter, and an antimicrobial filter rated at 99% efficiency. Those filters can deal with odors, dust, and fine particles with ease. A UV light at the 245nm wavelength ensures bacteria doesn’t grow inside the system, and there is a negative ion generator filter listed in the user manual as well.

You can find these filters in other systems, but the Cold Catalyst Filter is unique. It’s designed specifically for gasses, including formaldehyde, TVOCs, benzene, ammonia. The filter will help remove harmful VOCs wherever it’s installed, and color-coded lights quickly let you know the air conditions indoors. Other features to note include several sensors, a timer, Sleep Mode, and a remote control.

Our Verdict

The Dreval D-950 has a price point comparable to combo systems from bigger brands but with more filters and an ultrasonic humidifier. Unfortunately, they only list a CADR rating of 220 for the entire system and are vague in regards to other tech specs. It’s not a deal-breaker, but something to keep in mind if you want to know whether it is capable against smoke, pollen, and dust.

How to find the Best 2 in 1 Air Purifier for your Home

While it may not be challenging to find a great humidifier or the best air purifier, things take a turn when you attempt to track down units that can perform both functions. There are only a handful of systems of this nature available and plenty of sub-par systems that aren’t worth your time. With that in mind, here are some tips to help you find the right model for your home.

How is the Air Quality in your home?

If you’re in the market for one of these hybrid systems, you are obviously looking to improve the air quality in your home. Before you can settle on a machine, you need to consider the types of issues you’re experiencing and think about what you want to improve.

Is the air stale or carries the odor of cigarette smoke? Air purifiers excel at freshening up the air in a room, but you’ll want a purifier with smoke sensors and plenty of carbon to deal with odors from smoke, pets, or cooking. If you suffer from allergies, a 2-in-1 system with a HEPA filter will help, although some companies make filters designed specifically for people with allergies.

With the rise of COVID-19, you may want a system that can deal with bacteria and germs. The good news is that UV-C technology has been proven to destroy and render some viruses completely inert, and there are a few systems that utilize this tech in their purifiers. Unfortunately, the data is still coming in on just how effective UV-C radiation is against the SARS-CoV-2 virus as the dose, duration, and wavelength matter.

If members of your household have dry skin and sinus issues, humidifying the air can quickly solve those problems. While every machine on our list is capable of doing that, some are more effective than others. In our experience, combo systems geared towards purification don’t have the largest water tanks or runtime. Alternatively, many 2-in-1 humidifiers often have mediocre filtration, which is why it’s key to think about your air quality before you consider filtration.

Cleansing Technologies

Most forms of air cleansing technology fall under two categories – passive or active. Passive air purification methods are something every homeowner will be familiar with as these systems rely on a filter to remove particulates from the air. Alternatively, an active air purifier uses technology to cleanse the air in your home.

Active Filtration Methods

When you need to destroy or neutralize germs and bacteria in your home, you’ll want a system with active filtration. The most popular option for residential usage are air purifiers with an ionization feature.

An air purifier with an ionization feature produces ions that bond with airborne particles like dust in your home, making them too heavy to float through the air. While highly effective against some forms of pollutants, Ionizing purifiers work best when combined with a HEPA filter or another form of passive filtration that removes those dirty particles from the air. 

Electrostatic air purifiers, otherwise known as ESPs, are another option that works in a similar fashion to an ionizer. These unique machines use an electrical charge to attract contaminants from the air and draw them onto negatively charged plates on the system.

UV radiation has been used to destroy bacteria for decades and has recently made its way into the HVAC world through whole UV-C systems that work inside air ducts and portable purification systems. Ultraviolet germicidal irradiation is the best way to destroy microbes in the air, and they are commonly used with humidifiers to keep bacteria and mold from growing inside the system.

The last technology we want to discuss isn’t new, but only found from a few manufacturers. Plasma air purifiers create an electrical arc that ionizes gases and breaks their molecular bonds. These systems are extremely effective but can produce trace amounts of Ozone just like ionizers and electrostatic precipitation air purifiers.

Passive Filtration Methods

If you have a central HVAC system in your home, you’re probably already familiar with passive technology. A standard pleated furnace filter is passive, along with other styles, including the popular HEPA filter.

The advantage of passive air filters is that they can “trap” harmful pollutants within the filter's fibers, which is more efficient than active purifying methods. When they get dirty, you simply need to wash or replace them depending on the type of filter used.

The best type of air filter in this class are HEPA filters, but a True HEPA filter is the only kind certified to remove 99.97% of particles .03 microns or larger in size. Filters that utilize activated carbon are extremely popular in air purifiers as well. They are ideal when you need to remove odors or gasses from the air and typically work alongside an air filter.

CADR Ratings

One of the most important specifications to consider with an air purifier is CADR. This tech spec is commonly overlooked by consumers and sometimes hidden by manufacturers that have sub-par ratings on their machines.

CADR stands for Clean Air Delivery Rate and is recognized by the EPA as a way to understand the effectiveness of portable air cleaners. It basically tells you how much clean air an air purifier can deliver in the room where it’s placed, and there can be one or three numbers to consider depending on the type of system.

 Combo machines in this class that are light on purification features may be listed with a single CADR rating. That’s because they don’t have high-tech sensors or specialized filters in place like high-end air purifiers. The best air purifiers and humidifier combos should provide you with a CADR rating for smoke, dust, and pollen.

As for room size, you’ll want to ensure the CADR rating for the system you have in mind can handle the room, or you could end up with underwhelming performance. Assuming you have 8-foot ceilings, the easiest way to do this is to take the square footage of the room where the purifier will be used and divide it by 1.55.

If the room is 300 square feet, you would need a system with a CADR rating of at least 193 in order to thoroughly clean the air. You’ll want to make adjustments for vaulted ceilings and need to account for poorly sealed windows and other factors that may affect the efficiency of your new system as well.

Humidification

CADR ratings and filtration methods are key parts of an air purifier but have nothing to do with the humidifier. If you intend to use the humidifying feature frequently, you’ll want to check out the water tank before anything else.

The tank size on a humidifier gives you an idea of the operating time, which can vary anywhere from 3-4 hours to overnight. Many systems have removable water tanks, but some can also be filled from the top. Wicking filters are another key component of humidifiers and something you will have to replace eventually. If you’d like to learn more about how humidifiers work and what to look for, check out our guide.

Features

With air purifier humidifier combos, pricing isn’t really affected by branding or range as it all comes down to the features. While the technology used in these machines can definitely be considered a feature, so are these key areas.

Controls – Controls are a matter of convenience for some consumers and a necessity for others. With this class of system, you’ll typically get electronic or touch-based controls, although connected models are an option as well. If you want to control your air purifier humidifier combo with a smartphone or your voice, you can do so with the right system.

Aromatherapy – While you won’t find this feature on any air purifiers, aromatherapy cups and trays are popular on humidifiers. You can find them on hybrid systems as well, including several of the models that made our list.

Sensors – Next to Wi-Fi, sensors are the most expensive feature that drives up the price of an air purifier humidifier combo. Top-tier units will have a sensor to detect smoke, dust, and pollen, while budget-friendly systems tend to forgo sensors in place of additional passive filtration.

Modes – Modes are a popular feature on any type of portable system that deals with air quality, and you’ll find plenty on machines in this class. Baby and Sleep modes are ideal if you want to purify the air while you sleep, and most systems have set modes for humidification, purification, and fan-only mode as well.

Speeds & Timers – Every system on our list has multiple speeds, but timers are a little harder to come by. A humidifier air purifier combo should have three speeds at a minimum, although some premium machines double that. Timers can range from 2-8 hours and are handy when you want to ensure your purifier shuts itself off at a certain time.

Warranties

Humidifiers are relatively cheap, but things can get expensive quickly when you add purification into the mix. In our experience, most homeowners use air purifier and humidifier combos on a regular basis, which means you need to carefully consider the warranty.

Most manufacturers provide warranties ranging from 1-3 years on these systems. Replacement parts can be hard to come by as well, even with the bigger brand names. Unless you only intend to use your new system sparingly, we highly recommend looking into the price of an extended warranty.

Conclusion

Whether you have dry air in your home or want to reduce odors while removing fine particulates, an air purifier humidifier combo can take care of your needs. As these systems are considered a long term investment, remember to keep your budget in mind along with the tips in our buying guide. If you’re interested in cleaning the air in your entire home, you may want to consider a different style of purification system.

Air Purifier Humidifier Combo FAQ

Q: Can an air purifier produce Ozone indoors?

A: Yes. Ionizers, electrostatic precipitators, plasma purifiers, and UV lights with poor coatings can all potentially emit Ozone in your home.  The FDA has a limit of 0.05 PPM indoors for medical devices that emit Ozone, and any system using the technologies we mentioned should be well under that level.

Q: What is AMAH certification?

A: When you see an air purifier with AHAM certification, it means it’s approved by the Association of Home Appliance Manufacturers. The EPA recognized organization tests air purifiers' CADR rate to ensure the systems perform as they should.

Q: Are air purifier and humidifier combos noisy?

A: Some can be, but it all depends on your definition of noisy. In our research, we found that most units are under 30dBA on the lowest setting but can exceed 50dBA at full speed. The operating mode can also have an impact on noise levels indoors.

Q: How often should I change the filter in my system?

A: It depends on the type of air purifier humidifier combo system. Some units with cheaper filters may need to be replaced every month, whereas some manufacturers offer guarantees for a year or longer.

Q: What’s the best type of filter to remove VOCs from the air?

A: Air purifiers that use activated carbon or other absorbent materials. While other technologies may reduce VOCs, activated carbon excels at it.

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