Humidifier Buying Guide

Humidifier buying guide

Proper humidity level will help you to relieve dry skin, maintain a respiratory condition, or relieve the symptoms of the common cold, a humidifier is an outstanding solution for improving your indoor comfort and overall health. Humidifiers increase indoor humidity by adding moisture into the dry air in the form of an invisible mist.

Humidifiers are most often used in the wintertime to help ease the physical discomforts created by winter heating. But they can also be used all year-round to help ease respiratory problems and colds as well as to keep several household items in excellent condition.


Why Do You Need a Humidifier?

If the humidity level is below recommended (around 30 to 50 percent) you should use a humidifier to increase humidity till this level. Most popularly, humidifiers are used in colder months to battle dry air and to decrease the negative effects it can have on your health. When the air outside becomes cold during the autumn and winter seasons, it’s our standard method to retreat indoors and crank up the heat. But while heating systems do a solid job of heating the air, they actually decrease the humidity level of your air drastically. Dry indoor air can lead to:

  • Bloody nose
  • Cracked lips
  • Dry, scaly skin
  • Dry sinus passages
  • Sore, scratchy throat
  • Aggravated respiratory ailments

Humidifiers are also used to help control respiratory illnesses caused by asthma flare-ups, allergies, colds, sinus infections, congestion problems, and other illnesses. The mist coming from a humidifier eases your breathing passages. Some models even have a special medicine cups that enable you to combine in respiratory medications, which are released into the air along with the mist.

Dry air can also affect your home’s furniture and interior. For example, dry conditions can wreak havoc on wallpaper, causing it to peel at the edges. Wood floors and wood furniture items may lose moisture and contract, leading to ugly cracks, warps, and separations. Besides, static electricity can increase, causing sudden and painful shocks as well as potential damage to electronic equipment. Regularly running a humidifier to increase the moisture content in the air will help eliminate these problems.


Measuring Your Humiditygrumbach dial hygrometer 500 measuring humidity

As you read above, the ideal humidity level in home or building is between 30 to 50 percent (according to the Mayo Clinic). It is important to keep balanced indoor humidity through the whole year so you could feel comfortable and healthy. Humidity that is higher than 50 percent encourages the growth of bacteria, dust mites, mold, and other symptom-aggravating allergens. This kind of wet and muggy conditions may develop an unpleasant, musty odor and cause wood to rot, walls to stain, and paint to peel. On the other side, environments with humidity measuring under 30 percent will leave you susceptible to dry air’s adverse health effects and your interior furnishings vulnerable to damage.

How can you know what your actual indoor humidity level is? It is a simple and quick process. You just need an inexpensive digital hygrometer (for example Stadler Form Selina. Click to see). These devices display accurate readouts of the humidity level and temperature. They can usually be wall-mounted for regular use and may include extra features such as Celsius/Fahrenheit conversion, large internal memories, optimal humidity level warnings, and backlights for simple reading.

Some humidifier models include built-in hygrometers as well as humidity control sensors known as humidistats to help you precisely measure and adjust your home’s humidity.


Choosing Size and Capacity

If you want a humidifier in your bedroom it is not necessary to buy a big whole house humidifier. Also, if you want a humidifier to work in a whole house it is better to buy a whole house humidifier than 10 small humidifiers.

So as you read, humidifiers come in a variety of sizes and capacities to suit your home or building’s requirements. Each unit is calculated for an area of coverage in square feet or by expected room size. A humidifier’s output capacity is measured in gallons of moisture per day.

Tabletop humidifiers, also known as room humidifiers, disperse enough moisture to humidify a single room. These humidifiers are portable, lightweight, often with removable water containers that make them simple to fill and clean. It is very easy to move them from space to space. Click to see the tabletop humidifiers comparison chart. 

Console humidifiers are created to provide moisture to more than one room or an entire home or building measuring as large as 3,000 square feet in some cases. Usually, these units are also portable but a bit heavier than tabletop humidifiers. They are normally placed on the floor in a centralized area, and they come in a range of designs that attractively disguise them as ordinary furniture. Click to see the console humidifiers comparison chart.

A whole house humidifier covers whole house. Usually, these units are installed onto your HVAC system and connect straight to your water line. When the air is heated or cooled, it moves through a humidifier pad that has been saturated with water. The air absorbs moisture from this pad and is released into your home as humidified air. The best thing is that you don't have to refill your humidifier - if the system needs more water, it just draws it from your home's water supply. Click to see a whole house humidifiers comparison chart. 



Tank size and moisture output capacity is very important. You don't want powerful humidifier which needs to remove water every 3 hours.

Some small tank humidifiers have a feature that allows them to work longer using less water. Take a look at our humidifiers comparison charts - you will see tank size and approximately working hours for each humidifier.


Determining the Right Type

Humidifiers add moisture to the air in various ways and each type offers its own benefits and drawbacks. Cool mist humidifiers can add moisture to small and large areas, even entire houses. Cool mist humidifiers use less electricity because the water is not heated before it is dispersed. Also, cool mist humidifiers are safer to use if young children are in the home. That's because a warm mist humidifier works with a heating element that heats the water in the container to create a steam mist that is expelled to the room.Warm mist humidifiers boil
the water before releasing it into the room. Warm mist humidifiers are often rated healthier since the boiling process kills waterborne bacteria and mold, which prevents them from entering the air you breathe. They are a little quieter than cool mist humidifiers. In addition, warm mist humidifiers are more expensive to operate and they do require more frequent cleaning due to the fact that warm water, which encourages bacterial growth, is in the unit.

Picking the right type of humidifier depends mainly on your comfort needs, your budget and your enthusiasm to perform maintenance. Ask yourself these questions:

Do you want to feel warm mist or cool mist?

All humidifiers can make you indoors feel warmer by increasing the humidity. But, some models can temporarily change the temperature of your surroundings. Warm mist humidifiers have a tendency to make your place feel warmer while cool mist models disperse moisture at room temperature (sometimes make your place feel cooler).

How significant is the noise factor?

Warm mist humidifiers are usually less noisy than cool mist humidifiers because they don’t use a fan. Ultrasonic humidifiers are even quieter, making them excellent choices for bedrooms and other quiet environments.

How much maintenance is expected?

Evaporative humidifiers, which use a wick filter, require a filter replacement or a thorough filter cleaning regularly. Units that run without a filter just need to undergo regular maintenance. If your humidifier is equipped with a demineralization filter, a germ-reducing insert, or an ultraviolet light bulb, you'll also need to replace these elements at the manufacturer's suggested intervals.


Humidifier Cost

Compared to dehumidifiers, humidifiers are inexpensive. Prices start from around $20 for portable room humidifiers. Multiple rooms or whole house humidifiers are also inexpensive. You can get whole house humidifier starting from $120. Humidifiers with lots of features such as programmable timers, electronic controls, humidistats etc. can cost a lot more. All depends on you - if you need these features or not.

Cool mist humidifiers can have less of an influence on your power bill because unlike warm mist units, they do not require extra electricity to heat the water. However, the power demand of a warm mist humidifier is equivalent to the electricity needed to heat a teapot, so you may not even see a difference.


Comfort Features

Humidifiers include many features and controls that make an operation more comfortable. Some well-known ones to look for include:

  • Variable Speeds. It is important (at least for us) that your humidifier has more than one speed because selecting from more than one operating speed lets you control a humidifier’s moisture output and limit power usage. Also, multiple speeds help you adjust the noise level.
  • Built-In Hygrometer/Humidistat. A hygrometer measures the quantity of moisture within a place and tells it as a percentage, so you will always know if the humidity is within the recommended range (30 to 50 percent). A humidistat operates in an identical manner, but it has the ability to automatically turn the unit on and off in order to maintain a preset humidity level.
  • Automatic Shutoff. We think this is a must feature. If humidifier has an automatic shut-off it automatically turns off when the water reservoir is empty. This is important for safety reasons as well as for energy efficiency.
  • Digital Control Panel helps to ease your life. Digital measurements let you know exactly where your humidity falls and help you make precise changes. While analog controls are useful, they may not give you the accuracy of a digital control panel.
  • Indicator Lights. These lights signal you when the humidifier’s water tank is running low, when filters or other parts need to be replaced, or when it’s time to clean your humidifier.
  • Demineralization Cartridge eliminates mineral content from your water to reduce the risk of white dust. Breathing white dust can exacerbate existing respiratory diseases and cause new ones to develop.

Maintenance and CareHumidifier maintenance

If you do not maintain your humidifier properly it can work against your health. All humidifiers, especially warm mist units, need regular cleaning and disinfection in order to curb bacteria, mold, and mineral growth. If this is not done, pollutants can be released into the air you breathe. Over time, breathing polluted air may aggravate allergies and asthma, trigger flu-like symptoms, and contribute to a lung infection.

If you use your humidifier every day, you should clean it at minimum once a week. Follow the manufacturer’s instructions in your product manual for how to clean and care for your humidifier. Consider using distilled or de-mineralized water to help decrease the number of mineral deposits that may develop. Change filters and other parts regularly.


A Final Word

Congratulations if you read it all. I will not get offended if you didn't. Hope you have much more understanding about humidifiers. What next? You can continue with my comparison charts and humidifier reviews. I have lots of valuable information in these pages. Just use the links below to read them.

Humidifier comparison tables

Humidifier comparisons by mist type - cool, warm, and dual mist. Best travel, room and whole house humidifiers comparisons. Humidifier comparisons by prices and coverage areas. Comparisons have pros and cons, features and other useful information. 

Humidifier reviews

Most popular humidifier reviews. PureGuardian H920 Cool Mist Humidifier, Honeywell HCM-6009, Honeywell HCM-350 Cool Mist Humidifier Review and more. If you did not find a review of a humidifier you was searching don't panic. Just let me know and I will try to write it as soon as possible.

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Posted in Humidifiers.

My name is Ryan Oak. I have had a hard time dealing with my allergies. Happily, I found that an air purifier was effective to ease my allergy symptoms. I spent a lot of time researching the best air purifier. I know how hard it can be to find the suitable one.

During the reading period, I also read a lot about humidifiers and dehumidifiers. I learned the mechanisms behind the technologies as well as the manufacturers and organizations within the industry.

I now feel convinced that I have built a guide that shows you all you need to know about air purifiers, humidifiers, and dehumidifiers. So I came up with the idea of creating this website.

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