How to choose an ultrasonic humidifier: what to look for before buying?

The most acceptable option for normalizing the microclimate of a confined space is to purchase humidifying equipment.Among the variety of types, the ultrasonic air humidifier is of particular interest, differing from its counterparts in its high performance, safety and ease of use.

In this article, we will analyze in detail the design and operating principle of such devices, consider their main advantages and disadvantages, and highlight important criteria that influence the selection of a suitable model. After all, maximum benefit and efficiency of using the device are possible with a competent approach to its selection.

We will also list the best models of ultrasonic humidifiers according to users. To help beginners, we have put together a video with recommendations for choosing the right model.

Design and principle of operation of the device

Air humidity is one of the determining factors of a healthy and comfortable microclimate. The optimal moisture content in the atmosphere of the house is 50-60%. However, with the onset of the heating season, the figure drops to a critical level of 15-25%.

Dry air has a bad effect on performance, reduces immune functions and increases the risk of complications from infectious diseases. “Old-fashioned” methods (hanging wet towels on radiators, placing a basin with water) are ineffective and not easy to use.

Judging by expert assessments and consumer reviews, the leaders in operational efficiency among various household humidifiers Ultrasonic models are recognized.

Ultrasonic units implement the property of piezoelectrics to transform electrical vibrations into mechanical ones.

The device of the simplest piezo emitter: 1 – water tank, 2 – filter cartridge, 3 – fan, 4 – mechanical cleaning filter, 5 – ultrasonic membrane, 6 – vaporization channel, 7 – water suspension sprayer

Action diagram:

1. The tank is filled with water, the liquid undergoes primary filtration.
2. A high-frequency voltage is applied to the piezoelectric crystal (ultrasonic plate).
3. Under the influence of current, the membrane vibrates - waves of low and high pressure appear in the water layer, alternating with each other.
4. In a low-pressure zone, the liquid “boils” at a low temperature - cavitation occurs with the simultaneous release of a water aerosol.
5. The air flow forced by the fan drives the water “dust” to the outlet.

Outwardly, it seems as if water is boiling inside the humidifier, but the escaping steam is cold. Depending on the equipment, the operation of the device may differ slightly - additional stages are added (cleaning, ozonation, aromatization, etc.).

Pros and cons of ultrasonic humidifiers

The popularity of ultrasonic climate control units is constantly growing. The trend is due to a number of positive qualities of piezo emitters.

Advantages of ultrasonic models

Let's take a closer look at the main positive aspects of ultrasonic humidifiers.

Efficiency and ease of use

The performance of ultrasonic humidifiers is greater than that of traditional type units (“cold evaporation”) and is somewhat inferior to steam devices. Therefore, ultrasonic models are called an effective type of humidifier. For more information on how this type of appliance compares to traditional, steam and multi-function appliances, see in the next article.

The power of ultrasonic models is sufficient to service premises up to 60 sq.m. An additional plus is the ability to automatically regulate humidity thanks to the built-in hygrostat.

Strengths of ultrasonic “aerosols”: efficiency, safety of use, quiet operation, efficiency, low maintenance, interesting design, compactness and mobility

Along with good performance, piezo emitters consume half as much electricity as their counterparts that generate hot steam. In the long term, this leads to significant cost savings.

Ultrasonic models designed for installation in children's rooms are in particular demand:

Safety and quietness of the device

The water in the container does not heat up to high temperatures - there is no risk of burns if used carelessly. This indicates complete safety when using the device.

As for quiet operation, the design uses a low-power fan, so these humidifiers are recognized as the quietest.

Quiet operation is also determined by the absence of sounds of gurgling and boiling water, as in a steam apparatus. Average noise exposure – 25 dB

Mobility and ease of maintenance

The devices are compact in size, which allows them to be installed on windowsills and furniture. With small dimensions, humidifiers produce impressive volumes of cold steam and are considered the optimal solution for limited space.

The user is required to clean and dry if the device has been idle for some time - this measure will prevent the formation of mold and pathogens on the internal surfaces of the humidifier.

Negative features of humidifiers

Disadvantages of ultrasonic moisture “sprayers”:

1. High price. Purchasing an ultrasound machine will cost more than a traditional or steam humidifier. However, the inflated price is justified by performance, practicality and economical energy consumption.
2. The appearance of a white coating. When filling the tank with undistilled and mineralized water, “salt” dust may settle on the furniture.

Options for eliminating the disadvantage: buying a humidifier with a built-in cleaning filter or using distilled water.

There is a myth about the harmfulness of ultrasonic humidifiers for children. Of course, direct exposure to strong radiation is dangerous, but in a humidification system we are talking about low power and scattered radiation through water, which is absolutely harmless

Tips for choosing for future buyers

The market for climate control units provides a wide selection of ultrasonic models. In order not to get confused in the variety and choose the right device, it is advisable to adhere to a certain selection scheme.

First, you need to understand which version of the ultrasonic humidifier is preferable. Secondly, evaluate the technical capabilities of units in this segment. Thirdly, pay attention to secondary functionality. An important selection criterion is the reputation of the brand.

Variability of ultrasonic models

The product line of ultrasonic air humidifiers can be classified as follows:

• typical household unit;
• humidifier-cleaner;
• channel model;
• portable mini device;
• submersible steam generator.

Next, we will consider each of these types of devices in more detail.

Typical humidifier option

This is a traditional model for regulating humidity in a room with an area of ​​10-60 sq.m. It operates according to the principle described above.

The choice of household units is wide - from simple and budget products to technically advanced models that read and display current air parameters on the screen

Humidifier-purifier with ionization function

This group is represented by devices with an ionization function - enriching the atmosphere with “negative” ions. The device can operate only in humidification mode or perform two tasks simultaneously.

The built-in ionizer is able to neutralize cations, converting them into anions - particles that help saturate the body with oxygen and remove harmful impurities.

Are you interested in this type of humidifier? We invite you to familiarize yourself with the recommendations for choosing the best air purifier.

A popular example of an ultrasonic humidifier-ionizer is VT-1761 (Airo2) from Vitek. Characteristics: power – 40 W, productivity – 400 ml/h and more. The improved model VT-1764 has an informative display and electronic control

Duct humidifier model

Along with household ones, there are channel ultrasonic units. The humidifier is installed in the general ventilation system of the building, ensuring the supply of prepared air suspension to all rooms. Channel devices are in demand in medical and industrial institutions.

External view of a duct ultrasonic humidifier, the installation of which allows you to create a favorable indoor microclimate

Block diagram of the operation of a duct humidifier with an ultrasonic emitter. Designation in the figure: “M” - power and control module

Portable version of the device

An interesting option is a mini humid air sprayer. Typically, models do not have a water tank; its role is played by an ordinary 0.2-0.5 liter plastic bottle. There is a threaded “connector” for installing the container.

The mini-module is powered by a standard 220 V network or connected via a PC USB port. The device provides zonal humidification; full maintenance of the room is impossible

Submersible humidifier-steam generator

The design differs significantly from standard models - the device does not have a case, fan or other elements. In essence, this is a working module of an ultrasonic humidifier.

The steam generator converts water into cold mist. The unit is often used as a decorative element of an interior or an artificial pond. To use a fog generator as a humidifier, simply place the piezoelectric plate in a bowl of liquid and install a fan nearby.

Features of a submersible humidifier: optimal water temperature 5-45 ° C, liquid consumption - about 200-250 ml/h, continuous operation - up to eight hours

Technical Performance Assessment

Before purchasing climate control equipment, you should evaluate the capabilities of the piezo emitter. First of all, pay attention to significant technical and operational parameters: service area - device performance, water tank capacity, noise effect during operation.

Service area and performance

The indicator determines the amount of water evaporated per unit of time and the maximum service area. The performance of the humidifier is selected in accordance with the dimensions of the room where the device will be installed.

In a room of 15 square meters you should not place a device designed for 60 square meters. Instead of normalized humidification, there is a possibility of getting a room filled with fog. In addition, electricity bills increase unjustifiably

It is important to understand that despite its high performance, any unit is capable of efficiently humidifying one room. Even with the doors open, there is not enough circulation between adjacent rooms. The device must serve each room in turn.This means that the key parameter is the area of ​​the most spacious room.

Guideline for matching performance to room dimensions:

• 60 sq.m – 550-600 ml/h;
• 50 sq.m – 500-550 ml/h;
• 40 sq.m – 450 ml/h;
• 30 sq.m – 380 ml/h;
• 25 sq.m – 280 ml/h.

The power of the device depends on its performance and built-in “devices”.

High-performance models with advanced functionality consume about 100-130 W, ultrasonic humidifiers for 10-25 sq.m - from 12-20 W

Container volume and noise level

The capacity of the household appliance tank is 1-7.5 liters. The frequency of refilling the humidifier and the period of continuous operation will depend on the volume of the tank.

For round-the-clock operation, it is better to choose a model with a volumetric capacity (more than 6 liters); for periodic use, a humidifier with a capacity of 3-5 liters is suitable. Their reserve is enough for continuous operation for 10-12 hours.

Calculation of continuous operation time: container volume/performance. For example, the volume of the tank is 6000 ml, the water consumption is 500 ml/h. This means that one refill will last for 12 hours.

The “sounding” of a humidifier can be a serious irritant, especially if you plan to use the device at night. Almost silent operation is demonstrated by devices with a sound level of 20-25 dB - this is the optimal choice for a nursery and bedroom.

Devices at 30-35 dB are more or less comfortable in terms of acoustic perception - they are suitable for the living room. Modules of 40 dB and higher are applicable in public buildings where noise requirements are underestimated.

Safety and ease of use

In order to prevent breakdowns and ensure rational use, manufacturers supply products with the following elements:

1. Liquid level sensor. The device is located in the working chamber and automatically turns off the humidifier when the water drops critically. The sensor blocks dry operation and equipment failure.
2. Auto shut off when tipped over. In modern models, if the equipment falls, the “stop protection” is activated, stopping the operation of the humidifier.
3. Hygrostat. The option to track humidity in the atmosphere allows you to avoid turning the microclimate of the room into the tropics. Excessive dampness encourages mold growth.

Ease of use is influenced by: control method, presence of indicators, dimensions and ergonomic design of the case.

Operation adjustment is carried out using mechanical or electronic control. A practical and convenient “device” - remote setting of parameters. The presence of a remote control is especially important if the device is located remotely - on a high shelf, cabinet

Indicators for adding water and cleaning the module are welcome. Owners of ultrasonic steam generators with additional functions will find it useful to have an indication of the current operating mode.

You need to think in advance about a convenient location for installing the device. The location largely depends on the size of the equipment. It is better to give preference to a compact device - it can be placed on a cabinet, windowsill or table. An additional advantage is light weight and mobility.

“Cartoon” humidifiers look good in a nursery’s interior. Well-known brands do not include phthalates and bisphenol-A in the manufacture of such models.

Availability of additional options

Advanced functionality affects the cost of the humidifier.

Optional bonus options include:

1. Aromacapsule. A cartridge or flask for filling with aromatic oil will allow you to use the device in aromatherapy.
2. Timer. The element turns off the humidifier at a preset time. If it takes three hours to achieve optimal humidity, you can set a timer - this approach saves energy and reduces “refilling” the device with water.
3. Rotating sprayer. Adjustment of the direction of supply of water mist for targeted spraying to the sides or upwards, depending on the installation location of the unit.

An additional “night mode” option reduces performance, reduces electricity consumption, and also turns off the light display and indicators.

The decorative effect of the device is added by the original glow of the water container. Built-in lighting can replace a night light in a nursery or bedroom

Do you doubt the need to purchase an ultrasonic model for your apartment? In this case, we recommend that you familiarize yourself with the features other types of humidifiers, their advantages and disadvantages that influence the choice of the appropriate option.

Review of the best ultrasonic humidifiers

The top sellers are products from foreign companies: Stadler Form (Switzerland), Polaris (China), Redmond (USA), Royal Clima (China), Electrolux (Sweden), Boneco (Switzerland), AIRComfort (Italy), etc. The review includes household products models with the price corresponding to the declared parameters.

Model #1 - device with two Jack J-020 filters

The Stadler Form development model is made according to European standards. The humidifier is equipped with two cleaning complexes: a bactericidal cleaning cartridge and a demineralization filter. Operation control is supported by electrical sensors.

Additional characteristics: service area – 65 sq.m, color – black/white, maximum noise – 29 dB, night mode and “warm steam” option. Estimated price – 280-320 USD.

Brief overview of characteristics:

• power consumption - 40 W;
• water consumption - 450 ml/h;
• evaporation intensity adjustment - yes;
• aromatization - yes;
• control type - electronic, display;
• container volume - 5 l;
• hygrostat - yes;
• demineralizing cartridge - yes;
• pre-heating of water - yes;
• adjustment of the direction of humidification - yes.

The sleek body provides simple touch controls and clear indications.

Disadvantages according to consumers: lack of a remote control, the need to purchase expensive cartridges.

Model #2 - humidifier-ionizer Redmond RHF-3303

Despite the affordable price (about $110), the device has the functionality of expensive models.

This humidifier does not have a hole for filling the tank with water from above - you need to open the case to add water

Main characteristics of Redmond RHF-3303:

• Availability of Crystal Clear – cleaning cartridge;
• hygrostat - yes;
• air ionization - yes;
• remote control - yes;
• capacity volume – 6 l.
• power consumption - 130 W;
• water consumption - 400 ml/h;
• evaporation intensity adjustment - yes;
• air humidity adjustment - yes;
• Water level indication - yes.

There are “Cold/Warm steam” modes, a timer and a display.

Users also noticed the negative aspects of this model: the inability to turn off the sound indicator, resetting the settings in the absence of power.

Model #3 - Polaris PUH 5206 Di popular among buyers

A functional humidifier with an ionization option without unnecessary consumables.

Polaris PUH 5206 Di is capable of continuous operation for up to 18 hours. And the stylish design of the case and the floor-standing type of installation allow this humidifier to take its rightful place in the interior of the room

Main characteristics of Polaris PUH 5206 Di:

• air ionization - yes;
• capacity volume – 6 l.
• power consumption - 35 W;
• water consumption - 350 ml/h;
• warm steam - no;
• interior lighting - no;
• aromatization - no;
• three-level steam supply - yes;
• stylish design - yes;
• sleep timer - yes, with a range of 1-9 hours;
• night mode - yes;
• LED display - yes;
• water filtration - yes, through a carbon cartridge.

An important plus is the competitive cost (about 100 USD).

Disadvantages of this device: bulky to carry, lack of aroma capsule, inconvenient filling of the tank

Model #4 - stylish and affordable Ruh-S380

The original elliptical design in three colors (white, lavender and blue) immediately attracts attention. This model boasts a sophisticated appearance.

The model is effective in a room up to 30 sq.m. But the manufacturers did not provide for preliminary purification of the liquid. Therefore, to extend the service life and prevent “white sediment”, it is necessary to fill the container with distilled water

Characteristics of Ruh-S380 from Royal Clima:

• power consumption - 25 W;
• water consumption - 380 ml/h;
• installation type - floor
• aromatization - yes;
• control type - mechanical;
• container volume - 3 l;
• demineralizing cartridge - no;
• adjustment of the direction of humidification - yes.
• selection of steam direction – rotating the damper 360°;
• compactness and light weight – 0.97 kg;
• smooth adjustment of evaporation intensity - yes;
• almost silent operation - yes;
• loyal price - about 30-40 USD

Ruh-S380 can be used for aromatherapy.

Model #5 - multifunctional Boneco Air-O-Swiss U650

The Swiss brand Boneco is a recognized leader in the production of climate control equipment.The Air-O-Swiss U650 is a shining example of quality and functionality.

There are indicators for cleaning the unit and display brightness. The filter cartridge needs to be replaced every 2-4 months. The cost of the humidifier is 200-220 USD.

Brief overview of the characteristics of Boneco Air-O-Swiss U650:

• power consumption - 40 W;
• water consumption - 400-550 ml/h;
• warm steam - yes;
• control type: i-touch;
• container volume - 5.5 l;
• lack of water indication - yes.
• automatic microclimate control - yes, due to a temperature sensor and hygrostat;
• preliminary pasteurization of water - yes;
• durable ultrasonic membrane - yes, with a titaniumnitrit shell;
• possibility of additional equipment - yes, with an ionizing rod, a two-jet sprayer;
• modes - Auto/Night, Warm/Cold steam;
• timer - yes, for 8 hours.

Despite its high performance, Air-O-Swiss is practically silent - up to 25 dB.

In addition to the options considered, many users speak positively about the Bork brand, which offers highly efficient models with the function of ionization and air purification from various impurities. Also in particular demand are models of air purifiers with a humidification function, designed specifically for allergy sufferers.

We talked about all these devices and the rules for choosing them in the following articles:

• Bork air purifier: review of leading models from Bork, their advantages and disadvantages
• Which air purifier to choose for an apartment: models for allergy sufferers and asthmatics

Conclusions and useful video on the topic

Comparison of the capabilities of popular modifications of ultrasonic devices:

The choice of household equipment should be based on a comprehensive assessment of the characteristics of the device itself and individual needs.In any case, purchasing an ultrasonic humidifier is the right step towards a healthy microclimate.

Are you looking for a humidifier for your home, but are unsure about the need to buy an ultrasonic version? Ask your questions to our experts and other site visitors under this article - owners of ultrasonic humidifiers will be happy to dispel all your doubts.