Best Air Purifier Humidifier Combo Unit – Detailed Unbiased Review

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Whenever winter and fall comes around, humidity reduces drastically due to cool air not being able to carry as much moisture as warm air. When faced with lower humidity and dry air, some of us may start to develop dry eyes and skin which can get somewhat uncomfortable. 

Another undesired effect of winter and fall is the reduction in air quality as well. Due to the lower temperatures, there will be more need for heating. While most of us have already switched to electric heating, some are still using stoves and fireplaces. These release smoke, soot and other harmful pollutants into the air. For those susceptible to allergies, you will also be dreading this period as there are more allergens in the air due to the season. And of course, lets not forget the increased bacteria and virus growth during this period. 

In these cases, both air purification and humidification are required to ensure that your home remains comfortable and free of disease. Traditionally, you will need to get two separate appliances but now there are air purifier-humidifier combos that will do the job just fine.

When choosing an air purifier humidifier combo unit, it can be complex as there are many factors to look at both from the humidification and air purification aspect. In order to maximize your money for the most effective unit, buyers really need to make sure these factors are well considered.

Don’t worry if it is starting to sound complicated. We have done the research so that you can make your decision with clearer and updated information. The results can be seen below in our product review guide. 

Below, you will find a list of 4 best air purifier-humidifier combo units from reputable international brands, each with their pros and cons clearly stated.

Coverage AreaRunning TimeFilter replacement Air PurificationWarranty
Venta LW45 Airwasher860 sq. ft.24 hoursNot neededDisc Technology2 years
Boneco W200 Airwasher200 sq. ft.12 hours3 yearsDisc Technology5 years
Brondell Air Purifier Humidifier350 sq. ft.24 hours1 yearHEPA filter3 years
Opolar EV01300 sq. ft.15 hours1.5 yearsIonizer1.5 years
Best Air Purifier With Humidifier

You’ll also find a buyers’ guide where you can read our rationale when deciding how to rate these products, and hopefully you can use it yourself when making future purchases.

In a Hurry? This Is Our Winner!

Venta LW45 Airwasher

Best Overall Air Purifier Humidifier Combo Unit

Product Overview

  • Dimensions: 11.8” x 13” x 17.7”
  • Weight: 13 lbs
  • Coverage area: 860 sq. ft. (80 sq. m.)
  • Water tank capacity: 2.6 gallons (9.8 litre)
  • Filter replacement: Not required 
  • Refilling: Top fill
  • Running time: 24 hours
  • Warranty: 2 years

The Venta Airwasher is both a filter-free evaporative humidifier and filter-free air purifier, all in one lightweight unit. Featuring a 2.6 gallon water tank, the Venta LW45 is able to humidify dry room air while simultaneously purifying it in space up to 860 sq. ft. Using their disc technology, the Venta Airwasher is able to remove airborne pollutants down to 0.3 microns in size. For pets with asthma and allergies, this is an indispensable feature as the unit can remove dust, pollen and pet dander efficiently from the air. This effectively reduces most types of asthma/allergy triggers in the common household. Unlike HEPA filters which need to be replaced regularly, this method of air purification does not require any filter and hence no filter change is needed.

Besides being an air purifier, we should not forget that the main function of the Venta Airwasher is a humidifier. Using evaporative technology, it is able to keep the room humidity between 30% to 50% without any risk of over-humidifying the room. By keeping the room air moist, homeowners and their pets would also find it more comfortable on their nasal passages and airway. While not completely customizable like a unit with an inbuilt humidistat, homeowners can still choose the level of humidity by choosing between 3 fan settings. 

The Venta airwasher is also pretty user-friendly. It is a top fill humidifier that allows easy refilling of water into the water tank. While most humidifiers recommend the use of distilled water to prevent lime buildup or the discharge of white powder, Venta airwashers have no issues with using hard tap water. This is because they provide a conditioner to use every 7 days to prevent lime buildup. It also helps to keep the Airwasher clean and hygienic as well as improve the evaporation/humidification process by coating the Disc Stacks. Washing is also not difficult as you just need to rinse the parts under water to clean it up.

The one grip I have is the noisy fan at the highest fan setting. The noise level ranges from 24 dB to 45 dB. If used at the lowest setting, it is perfectly fine but when used at the highest fan setting, the noise level at 45 dB is the threshold at which it might disturb you and your family.

Another limitation is the higher price point of this unit compared to other humidifiers on this review. It might not be suitable for homeowners on a budget. However, if your budget allows, this is a fantastic combo unit that is well worth your buck. WIth good humidification and air purification feature, this unit is easy to use, easy to maintain and perfect for homeowners that are suffering from respiratory ailments.

Pros

  • Purifies air down to 0.3 microns in size
  • Has conditioner that prevent lime buildup
  • Convenient. Able to use hard tap water
  • Easy to refill with top fill design
  • Easy to clean and maintain
  • No filter replacement required

Cons

  • Noisy fan

What the fans love: “No allergies- minimizes booger’s! We bought several of these for our whole house for wildfire season and they work great. Now we live in southern AZ and humidity levels can be 3%… the venta keeps all of us moist and breathing clean air. Great product. Once I tripped on the cord and customer service helped me fix it fast. Literally the best air purifier and humidifier ever – no water spots and it doesn’t get that humid.”


Best Air Purifier With Humidifier Buyers’ Guide

Why An Air Purifier Is Important For The Home

The adverse health effects of indoor air pollution are well established and well researched. Many studies have demonstrated a clear relationship between air pollution and respiratory disorders. A research article recently found a strong association between respiratory symptoms and indoor air pollution. This is especially so if the individual is exposed to the air pollution for a prolonged period of time. 

Common symptoms of poor air quality that may show in us are 

  • Breathlessness
  • Cough that does not recover with medication
  • Wheezing
  • Asthma attacks
  • Respiratory infections

If you or someone in your family are having these symptoms, it may be time to invest in a good air purifier. 

Sources Of Indoor Air Pollution

There are many sources of indoor air pollutants and pollutant concentration can remain in the air for long periods once it is emitted. Some common sources of indoor air pollutants are:

  • Tobacco products
  • Deteriorating asbestos-containing insulation
  • Furniture made of certain pressed wood products
  • Household cleaning products 
  • Excess moisture
  • Outdoor radon
  • Pesticides
  • Traffic pollution

What is the ideal indoor humidity?

A good humidity level is one in which we can get the most amount of comfort and where it is most conducive to our health. There is a wide range of ideal indoor humidity reported by studies and online sources but most seems to agree that a comfortable humidity level is between 40% to 60%. 

In terms of health, this level of humidity is also considered to be the most optimum for health. The survival and infectivity of airborne transmitted bacteria and viruses are minimized by exposure to relative humidity of 40% to 60%. This greatly reduces the risk of disease transmission from these pathogens.

ideal-humidity

Why A Humidifier Is Important For Your Home

The inappropriate indoor humidity levels can have both direct and indirect effects on your health and comfort. The direct effects are the result of the humidity on your body systems and workings while indirect effects result from the impact of humidity on viruses, bacteria, fungi and chemicals.

Direct Health Effects

These are probably effects that most of us have experienced before. When high humidity is combined with high temperature, our sweat finds it very difficult to evaporate as the air is already saturated with water vapour. Therefore, we generally end up feeling very hot and sticky resulting in visible physical discomfort. 

Conversely, in areas with very low indoor humidity (dry air), we tend to suffer from irritation of the eyes, nose, throat and skin. This is due to the drying of the surface membrane that covers these areas. Some common symptoms that may arise are nose bleeding and eczema. 

Indirect Health Effects

Many studies have found that humidity can increase the risk of allergies and infections in the respiratory system. This effect is likely caused by the growth of bacteria, dust mites, viruses and fungi caused by inappropriate humidity levels. In addition to that, relative humidity may increase the concentration of harmful chemicals in the air when water vapor reacts with chemicals in the air.  

For a comprehensive guide on how poor humidity can cause harmful health effects, visit our guide here now!

effects of low humidity

Considerations When Choosing An Air Purifier-Humidifier Combo Unit

Coverage Area

When choosing your air purifier and humidifier, you need to find out the size of your room as accurately as possible to avoid disappointment. The easiest way to find out the size of your room is to measure the length and breadth of your room and then multiply them together.

Once you have an idea of the actual size of your room, you can look at the models of air purifier-humidifiers that you are interested in. Almost all manufacturers will list down the coverage area of their models in the product overview. These give you a good indication of what size room the air purifier is best for. 

When looking at these values provided by the manufacturers, I would probably round them down by about 20%. For example, the manufacturer may say that the unit can cover an area of 500 sq. ft. but I would take away 20% from that and estimate the coverage area to be about 400 sq. ft. This is because these values were probably measured in an ideal environment where there are no leaks or drafts in the room. In real life, we may have leaky windows, wall cracks, door gaps that may contribute to the reduced air quality.

Portability

Air purifiers can come in a few different designs. The common models are compact, tower and wall mounted. Each design would have its pros and cons and suitability in different situations. Depending on your needs and requirements, this may or may not be an important point. For those on a budget, getting a portable unit would be wiser as it can be transported between rooms and homeowners do not need to get multiple units. However, if you need to purify the air in a large room, you will definitely need a larger air purifier with a larger filter. In these cases, the air purifiers are heavier and it would make more sense to leave it in one location.

Replacement Filter Maintenance

When choosing an affordable air purifier, it is important to look beyond the immediate buying price. Homeowners need to consider the long term cost of owning an air purifier by looking at the frequency of filter replacement and also the cost of filter replacement. Generally, filters need to be replaced every 6 monthly but this may differ based on the air quality in your area.  

Homeowners should also consider getting models whereby the replacement filters are affordably and reasonably priced. Be wary of models where the replacement filter cost a fortune as these will add up really fast over the years. In the long run, choosing an air purifier with low maintenance cost will save you a lot of money.

Presence Of True HEPA Filter 

While HEPA filters cannot do anything against gaseous compounds, they work wonders against solid airborne particles. It is worth noting that some solid airborne particles may also emit smells and odors. Examples of these are mold spores and tobacco soot. With a true HEPA filter, your air purifier will be able to remove these from the air and improve the air quality significantly while also removing the odor from these pollutants.

Warranty

For any electrical appliances, the length of warranty is always something to consider. Obviously the longer the warranty, the better it is for the consumer. A long warranty is also suggestive that the company is very confident of their product’s longevity and durability. Generally in the air purifier sector, a warranty period of 1 to 2 years is quite reasonable and anything beyond that is considered good.

Ease Of Maintenance Of Humidifier Parts

This refers to the ease of refilling water and the ease of cleaning. Most humidifiers will require a refill of water every 24 hour depending on the capacity of the water tank. For something that you have to do frequently, it makes sense to find a model that allows easy refilling that is fast, efficient and neat. Usually, a top refill model is easier to do refilling as you just need to cover the top lid and pour in water. Generally, bottom refills tend to be messier and more of a hassle.

Humidifiers usually need a good thorough wash once every week. Depending on the model of the humidifier, the cleaning may take anything from 10 minutes to 30 minutes. When choosing a humidifier that is easy to clean, avoid units with many components or units with many small parts that are difficult to access. Some models come with specialized brush to allow users to reach difficult to access areas. The water tank should have a large access hole which allows the users to place the whole hand in for easy scrubbing.

If a humidifier cannot be cleaned properly, there will be buildup of lime, mold and fungus and these particles can get released into the air when the humidifier is working. Ultimately, these particles are harmful to humans and even more so to asthmatics who already have sensitive airway.

Running Time

During winter when the humidity will dip to levels below 20%, you will require your humidifier working almost full time to provide that much needed moisture to your homes. As such you will want a humidifier that has a reasonably long running time in between refills. 

Homeowners can look at the running time of the humidifier when choosing their humidifier. At least 24 hours on their highest setting is recommended so that you only need to refill once a day. Some units boast a long running time but only on the lowest setting. So… read the fine print!


Best Air Purifier With Humidifier Product review

Boneco W200 Airwasher

Best Air Purifier Humidifier Combo For Small Rooms

Product Overview

  • Dimensions: 11” x 11” x 116”
  • Weight: 11.2 lb
  • Coverage area: 200 sq. ft. (18 sq. m)
  • Water tank capacity: 1.2 gallons (4.5 litre)
  • Filter replacement: 3 years
  • Refill: Top fill
  • Running time: 12 hours
  • Warranty: 5 years

The Boneco W200 Airwasher is a humidifier and air purifier combination unit that can cover an area up to 200 sq. ft. with its 1.2 gallon water tank. This medium room  humidifier has a running time of about 12 hours between refills. When it does run out of water or is low on energy, there is an automatic shutoff feature to prevent overheating. While not totally quiet during operation, the noise is still reasonable at about 40dB.

As an airwasher, it utilizes evaporative technology for its humidification and hence it will never run the risk of over-humidifying the room. Also, it does not have the typical white dust that ultrasonic humidifiers sometimes emit when tap water is used. This is important for users whose cough may be triggered by white dust and saves them the hassle of using distilled water in their humidifier. 

In terms of functionality, this humidifier and air purifier combo unit has a no frills approach with an easy to use manual knob control that allows users to choose between 2 moisture output settings. It does require a bit of trial and error initially to find the correct level that suits your home. However, once you nail that down, it is pretty convenient. For homeowners who are not too particular and looking for units with minimum configuration, this is a suitable model. There is also an integrated fragrance container for essential oils to allow homeowners to indulge in some aromatherapy.

As an airwasher, the air purification feature comes from the rotating evaporative mat in the unit that acts as a filter. While most humidifier filters require replacement every 3 monthly or so. This filter only needs to be replaced every 3 years! This is much more convenient for the user and saves them so much trouble.

For ease of use, I really love that it is a top refilling humidifier because that is just so convenient for homeowners to refill without much effort and without any mess. For cleaning wise, the majority of the components are actually dishwasher safe. This reduces all the scrubbing that you need to do when maintaining this airwasher. Pop it in the dishwasher, sit back and relax.

The limitations of this humidifier include a relatively short running time of 12 hours and this is on low setting. When used on the high setting, this humidifier may not be able to last you through the night if you do not refill it right before you retire to bed. Priced reasonably for combo units, this is a great great buy you would not regret.

Pros

  • Reasonably quiet
  • Auto shut off feature
  • Air purifier feature
  • Easy to refill water and clean
  • Filter replacement every 3 years

Cons

  • Short running time

What the fans love: “I love it. Super easy to use, however due to its small size know that the water needs to be refilled every 8-10hours. I live in a 760sq ft apartment and it is able to keep my humidity around 45% if I stay on top of filling it and depending how cold it is outside and dry. Before I got this my apartment humidity level was at 20-24% this winter and I was feeling sick. This humidifier has really helped with my allergy symptoms.”


Brondell Air Purifier With Humidifier

Best Premium Air Purifier With Humidifier

Product Overview

  • Dimensions: 15.6” x 12.5” x 19”
  • Weight: 20 lbs
  • Coverage area: 350 sq. ft. (32sqm)
  • Filter replacement frequency: Once every 12 months
  • Water Refill: Top fill
  • Humidification Running Time: 24 hours
  • Water Tank Capacity: 0.9 gallon (3.5 liter)
  • Warranty: 3 year

The Brondell Air Purifier With Humidifier is a combo unit that can work in a medium sized room of about 350 sq. ft. Regarding its air purification capabilities, it contains a True HEPA filter, granulated carbon filter and a pre-filter. With these in place, this air purifier humidifier combo unit is able to reduce up to 99.97% of harmful airborne particles such as pollen, mold, spores, dust mites and other allergens as small as 0.3 microns. For home struggling with odors, this air purifier got you covered as well with its activated carbon filter. It is worth noting that it is rare for combo units to have HEPA filters as most are predominately humidifiers more than air purifiers. But the Brondell air purifier with humidifier truly delivers on air quality.

There are 4 operating modes available for the user in this unit. For homeowners with bad allergies, use the Allergen mode to power the fan at maximum speed and quickly remove indoor pollutants. For users big on convenience, they can make use of the Auto mode and Eco mode which can automatically adjust the fan speed based on the air quality. Last of all, we have the manual mode for those who prefer more customization. Essentially, there is something to satisfy everyone’s needs. 

Regarding the humidification feature, this unit is able to cover rooms up to 350 sq. ft with its 1 gallons water tank. With a mist output rate of about 350ml/hr, this humidifier can last for about 10 to 12 hours. This makes it ideal for a large bedroom where you can leave the humidifier running through the night. As an evaporative humidifier, users will not have to worry about over-humidification as the humidification is self limiting.

Something that users will really appreciate is the air quality and humidification indicators that are inbuilt into this unit. These indicators will show the user the level of humidity in their homes and also the quality of indoor air. These give the homeowners a lot of valuable information and allows them to effect changes in their homes accurately. 

For ease of use, I really love that it is a top refilling humidifier because that is just so convenient for homeowners to refill without much effort and without any mess. The water tank also has an extra-wide opening for easy filling and cleaning. 
All in all, this is an air purifier humidifier combo unit that truly delivers on BOTH air purification and humidification. This is quite rare as most units will place more emphasis on only one aspect. Therefore, even though the price is higher than other models, you are still saving money compared to buying a separate air purifier and humidifier.

Pros

  • Contains HEPA and activated carbon filter
  • Auto mode for convenient handling
  • Easy top refilling
  • Humidifier parts easy to clean
  • Has inbuilt air quality and humidity sensor

Cons

  • Low humidification running time
  • Heavy

What the fans love: “My boyfriend has this in his bedroom. When it is on, I can smell the fresh air and breathe so much easier at night. Yes, it is a little pricier than other air purifiers, but it is the evaporative humidification system that makes the HUGE difference.”

Opolar EV01 Humidifier With Ionizer

Best Portable Air Purifier With Humidifier

Product Overview

  • Dimensions: 14.6” x 13.8” x 7.5”
  • Weight: 6.84 lbs
  • Coverage area: 300 sq. ft. (28sqm)
  • Filter replacement frequency: 18 months
  • Water Refill: Top fill
  • Humidification Running Time: 15 hours
  • Water Tank Capacity: 0.8 gallon (3 liter)
  • Warranty: 1.5 years

The Opolar EV01 is a humidifier and air purifier combination unit that can cover an area up to 300 sq. ft. with its 0.8 gallon water tank. This medium room humidifier has a running time of about 15 hours between refills. When running on the lowest setting, it may even be able to stretch that to 24 hours. While not totally quiet during operation, the noise is reasonable at about 40dB and still comfortable for peaceful sleeping in the bedroom.

The Opolar EV01 utilizes evaporative technology for its humidification and hence it will never run the risk of over-humidifying the room. Also, it does not have the typical white dust that ultrasonic humidifiers sometimes emit when tap water is used. This is important for users whose cough may be triggered by white dust and saves them the hassle of using distilled water in their humidifier. 

Featuring a filter with honeycomb construction, the embedded filter is able to remove airborne pollutants such as dust and pollen to discharge clean healthy air into the room. Just like a HEPA filter, this filter requires replacement but at a much lesser frequent rate of once every 18 months. Users will do need to clean the filter regularly to ensure that it ensures this longevity.

Another feature that contributes to the air purification is the inbuilt ionizer that can release negatively charged ions that will bind to airborne pollutants. The bounded particles then become too heavy to stay airborne and soon settle on surfaces to be wiped away. While some homeowners may be concerned about the production of ozone, they can rest easy knowing that it is well within the safe range for humans and will not cause any adverse side effects.

In terms of functionality, this humidifier and air purifier combo unit has a no frills approach with a single button control that allows users to choose between 2 moisture output settings. For homeowners who are not too particular and looking for units with minimum configuration, this is a suitable model. For ease of use, I really love that it is a top refilling humidifier because that is just so convenient for homeowners to refill without much effort and without any mess. 

The biggest draw of this unit is the price. It is the one of the most affordable air purifier with humidifier units on the market right now. Although the features are not as extensive, it still delivers the results and is the perfect choice for those on a tight budget.

Pros

  • Light and compact
  • Priced affordably
  • Has an ionizer
  • Top fill for easy refilling

Cons

  • Ozone production but low
  • Short running time

What the fans love: “Sleek modern design, efficient and quiet. Nice to see a product that does what it says it does. Very happy with this purchase.Love it!”


Frequently Asked Questions (FAQs)

Q: Where is the best place to put an air purifier?

A: Long story short.

  • Close to the odor source
  • Bedrooms and areas with high human traffic
  • On the floor if your main problem is pet fur and dust on the floor
  • Elevated if you are dealing with smoke and soot
  • 8 inches away from walls and furniture
  • 12 inches away from electronics

If you like the full story, check out our guide on the best practices when positioning your air purifier!

Q: Should we shut the windows and doors when using an air purifier?

A: Almost all air purifier companies we interviewed recommend that windows and doors be closed while running the air purifier This improves both air cleaning efficiency and also energy efficiency giving the user better air quality and improved savings. In the case of cigarette smoke, homeowners are advised to open the windows and ventilate the room first. Once the majority of the smoke has left the room, then shut the windows to allow the air purifier to clean the remaining airborne chemicals.

Q: Does air purifier make air dry?

A: No. Air purifiers are unable to remove moisture from the air at all. Therefore it cannot dry up the air. Watch out for other possible reasons that might dry out the air such as a strong fan nearby. If low humidity is an issue, consider getting a humidifier.

Q: Which is better for asthma? Humidifier or air purifier?

A: Both will help asthma but in different ways. Humidifiers help to keep the indoor air moist so that the inhaled air does not dry up the nasal passages and irritate it. Air purifiers clean the air of airborne pollutants which can trigger asthma attacks. A combination unit might be the way forward if your home is suffering from both low humidity and poor air quality.

Q: Where is the best place to put a humidifier?

A: Long story short.

  • Placement in the middle of the room leads to fast and even humidification
  • Keep humidifier 14 -17 feet (4-5m) away from walls and furniture
  • Place 3 feet (1 m) away from the bed 
  • Elevate the humidifier 2 feet off the ground
  • Keep the windows and doors shut when using the humidifier
  • Avoid running a humidifier and air purifier in the same room
  • Avoid placing humidifier in direct sunlight

If you like the full story, check out our guide on the best practices when positioning your humidifier!

Q: Do humidifiers kill airborne viruses?

A:  No. Humidifiers do not kill viruses per se. However, maintaining the indoor humidity levels between 40% to 60% will lower the survival rates of viruses. Viruses thrive in very dry (blow 20% relative humidity) or very moist conditions (above 80% relative humidity). Therefore, we always see an uptake of influenza during the winter seasons. The virus simply survives longer on surfaces and has more chances to infect people. By increasing the humidity with a humidifier, the virus does not survive as long.


Recap Of The Best Air Purifier Humidifier Combo

Coverage AreaRunning TimeFilter replacement Air PurificationWarranty
Venta LW45 Airwasher860 sq. ft.24 hoursNot neededDisc Technology2 years
Boneco W200 Airwasher200 sq. ft.12 hours3 yearsDisc Technology5 years
Brondell Air Purifier Humidifier350 sq. ft.24 hours1 yearHEPA filter3 years
Opolar EV01300 sq. ft.15 hours1.5 yearsIonizer1.5 years
Best Air Purifier With Humidifier

Wrapping it up

Of the 4 products we reviewed, the Venta LW45 Airwasher was our favorite because we find that this air purifier has the best balance in terms of purification efficiency, safety, quietness and pricing. There are tons of awesome features that really make this air purifier shine. For homeowners looking to protect yourselves and your family from the harmful effects of indoor air pollution, this air purifier with humidifier will get the job done. Priced reasonably, the Venta LW45 Airwasher is a real steal for what it can do!

Click here to get one now!

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