Best Whole House Humidifiers

For any of us, our home is a place, which should be associated with comfort, coziness and health. Not everybody is aware that dry air may be harmful to the house residents (including pets) and can become a reason of such symptoms as irritation when breathing, itchy skin and even occasional nosebleeds.

Whole house humidifier is an appliance, which can increase humidity in the home and help alleviate the unpleasant symptoms caused by the influence of dry air.

In addition to this, the appliance can help reduce static electricity and create a better environment for the home furnishings, woodwork and valuables.

General whole house humidifier information

Portable humidifiers are convenient but they are appropriate in small spaces only. Moving them from one room to another can be uncomfortable and ineffective. If you need to increase the level of humidity in the entire building and not just in separate rooms, whole house humidifier can be a life-saver.

The benefits of using a whole house humidifier can be immense but only if the product was chosen correctly. There are many important factors that will need to be considered in case you decide to purchase this product. Financial capabilities, personal preferences and needs of each family member have to be taken into the account.

  • How big is your house?
  • Will you be able to install the humidifier yourself or it requires professional installation?
  • What are the product specifications should be?
  • Does maintenance require a lot of effort and funds?
  • How technologically advanced whole house humidifier you would prefer to have in your home? 

Thorough research is definitely needed in order to make an educated decision.

Here is our review of some of the best whole house humidifiers available on the market nowadays.

How does the whole house humidifier work? 

Typically, a whole house humidifier is attached between the building’s hot air duct lines and cold air return. It may function from the system’s heat cycle or operate independently. The appliance gets connected to the water supply system, draws moisture from water and evaporates it into the air.

 Types of whole house humidifiers

There are three main types of whole house humidifiers and they are the following:

  • Bypass humidifiers. The appliances draw and moisture warm air from the home’s furnace.
  • Fan-powered humidifiers. These units work in a similar way as the bypass humidifiers but they use a fan, which facilitates water evaporation.
  • Steam humidifiers. The air gets moisturized as a result of electrical heating.

Pros and cons of whole house humidifier usage

Mainly, those users who suffer from dry air in the home find whole house humidifiers very useful. The drawback is extra funds, which you need to spend on maintenance, no matter if it is executed professionally (you need to pay to a technician) or DIY type (you need to buy new filters regularly).  

How much a whole house humidifier costs

Typically, the cost of a whole house humidifier may range between $100 and $1,100 depending on the capacity, model and the featured options.

Honeywell HE240 Whole House Humidifier


  • Easy installation with detailed instructions and video on Youtube provided by the manufacturer Honeywell
  • Affordable price
  • Water usage is kept to a minimum


  • In case you have hard water, you might expect more frequent maintenance to keep this model functioning as intended
  • It might not be big enough for some buildings


Honeywell HE240 Humidifier is one of the leading brands of whole house humidifiers available on the market today. This product has all in it to bring a new level of comfort to your home. It is designed to humidify the air in the houses as large as 3,000 square feet. The unit can put out up to 16 gallons of moisture per day. This humidifier is smart enough to keep itself clean of microorganisms by regularly rinsing and even draining itself without the need to draw stagnant water from a tank.

Honeywell’s unique PerfectFLO Water Distribution system ensures that water usage is optimized well enough for low-cost humidifying. The evaporator pad does its job when filtering out minerals from hard water and other impurities for cleaner humidifying. You can choose a comfortable moisture level on the easy-to-use humidity control panel and the unit will run only when it is required so there’s no need to keep in mind to turn it on and off manually.


If you need to improve the quality of the air in your house, you can definitely rely on Honeywell HE240 Whole House Humidifier. The unit is efficient, easy to install and considered to be good value for money.

Ease of installation 9/10

Efficiency 9/10

Affordability 9/10

Aprilaire 600 Whole House Humidifier


  • Efficient energy consumption
  • Convenient automatic digital control
  • The whole unit is fully reversible


  • Limited warranty support
  • The unit may leak


You can stop the uncomfortable dry air issues in your house with another winter life-saver such as an Aprilaire 600 Whole House Humidifier.

The great thing about this unit is that it will automatically sense when your home needs more humidity. Automatic digital control keeps the right level of moisture in the building at all times. The sensor detects that the air in the home is humidified below the set predetermined point and adjusts it accordingly.

Aprilaire 600 Whole House Humidifier is designed to be used in the midsize to large houses with the aim of humidifying a living space of up to 4,000 square feet. The unit can deliver 17 gallons of water each day.

It is fairly easy to install the humidifier. If you can follow the provided instructions and are capable to use basic mechanical tools, you should be able to install the unit without too much fuss. However, take into consideration the fact that the manufacturer does recommend professional installation.


Based upon many reviews, Aprilaire 600 Whole House Humidifier is an effective whole house humidifier. It has a great feature of an automatic adjustment of humidity levels at home depending on outdoor temperature and weather while helping cut down on water consumption at the same time.

Ease of installation 7/10

Efficiency 9/10

Affordability 8/10

Holmes HCM3888C Smart WeMo Whole Home Humidifier


  • Wi-Fi feature
  • Maintains the set level of humidity consistently
  • Shuts off automatically when the desired level of moisture is reached


  • Filters are considered to be more on the pricey side
  • Some owners find the unit noisy


Holmes Whole House Humidifier is another effective way to keep your home moist and comfortable. You can regulate his functioning with the control panel or via the smartphone wirelessly. WeMo app is used for this purpose and it can be downloaded via iOS and Android.

The unit can automatically adjust the level of humidity in the air and the evaporation pads filter well for clean moisture. You can also program the settings of the humidifier to reach as comfortable condition as you need at a particular time of year.

Another great feature of this Holmes Whole House Humidifier model is a filter reminder, which is sent to the smartphone via the WeMo App. Ordering new filters is also easy since the app offers a direct link to the product.


Holmes HCM3888C Smart WeMo Whole Home Humidifier is a great and innovative product that effectively combats the dryness in the air when the heating system zaps the moisture in the building.

Ease of installation 9/10

Efficiency 8/10

Affordability 9/10

AirCare 696 400HB Whole House Credenza Evaporative Humidifier


  • Quiet nighttime setting
  • Stylish design
  • The unit has a refill indicator


  • Some users consider the humidifier to be too noisy
  • The supplied filler hose might not fit some faucets


This evaporative humidifier has nine speeds and this ensures that you can easily regulate the amount of moisture for your whole home. The oak-colored cabinet is designed in an attractive credenza style. There are casters, which are hidden on the bottom of the unit to make transportation of it more comfortable.

The speed of the fan is adjustable and can be easily regulated until it reaches the desired level of evaporated moisture. Dual tanks can hold up to 5.6 gallons of water so that you don’t have to refill them too often.

AirCare Evaporative Humidifier can add moisture to a building, which is up to 3,600 in size. Its runtime is supposed to be about a couple of days but it is reported by some users that it runs for up to 24 hours.


Many evaporative humidifiers are considered to be noisy but AirCare 696 400HB Whole House Credenza Evaporative Humidifier is even louder than similar products. However, it still does its job well and, as a bonus, has a stylish design.

Ease of installation 9/10

Efficiency 8/10

Affordability 8/10

Tips and Hacks

Tip #1 

Do thorough preliminary research. Not every humidifier can suit your needs. Certainly, you may change the unsuitable unit with time but it might require extra expenses. Make sure you take into consideration the capacity of the product, its dimensions, installation and maintenance requirements.  

Tip #2 

The harder the water, the shorter the filter life. Make sure you choose the humidifier that is suitable for the type of water, which you have at your location. Also, check your filters regularly and replace them often enough to avoid them becoming moldy.

Tip #3 

Depending on water usage in your house, make sure you choose the humidifier, which can help you cut down on water consumption.

Whole house humidifiers FAQ

How to install a whole house humidifier? 

Depending on a model, the process of installation may vary. The majority of units can be installed by yourself because many manufacturers provide straightforward instructions on how to ensure that the humidifier functions efficiently.

Before you get started, you’ll need to make sure that you have all the tools and accessories on hand before the installation.

The installation kit, which contains all of the ducting, hardware, tubing and other accessories required, may be sold separately. Refer to the written installation instructions for the complete list of tools that you need to have on hand. Once everything is in place, the installation process should take around an hour. Bear in mind that if you decide to install the unit in the supply side rather than the return, it’s better to be very careful not to damage the air conditioning coil with the drill. Check out your furnace model and take a look at your supply ducts before you start drilling.

Ideally, ask a professional technician to conduct all the installation works so that your humidifier functions as intended.

How to clean a whole house humidifier? 

Cleaning of a whole house humidifier is an important and integral part of taking care of the unit. Make sure you clean the appliance regularly to guarantee the purity of the moisturized air, which humidifier produces. Refer to the original instructions of the manufacturer to see in details how to take care of your unit correctly and avoid unintentional damage.

What is the best whole house humidifier? 

There are many different brands available nowadays but reportedly, Honeywell, Aprilaire, Holmes, and AirCare appear to be amongst the leading manufactures on the market of whole house humidifiers.


Whole house humidifier can be really helpful for those who experience unpleasant consequences of the dry air in the building. The appliance is affordable for many and the installation of the unit is usually relatively simple. The bottom line is that the difference that humidifier can make to the wellbeing of house residents is worth every penny.



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