Compare Humidifiers

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Crowdstorm’s buyer’s guide to humidifiers

Welcome to Crowdstorm – and more specifically our web page dedicated to buying humidifiers. It’s the kind of purchase we rarely make, so how are you meant to be an expert? Well don’t worry - that’s where we come in.

We scour the internet to find the hottest deals on the best humidifiers from the leading manufacturers; from Vicks humidifiers through to Bionaire and Dyson. And better still we collate them all here, with offers from all your favourite high street and online retailers. All you need to do is click through and make your purchase direct from them.

But before you get going, check out our humidifiers guide below.

Who needs a humidifier?

Whether you’re at work or at home, the humidity should be around 30-50%. But at certain times of the year, especially in winter, the level of humidity can drop to as low as 10% thanks to central heating drying out the air.

When humidity levels are too low you may experience some or all of the following:

  • Dry eyes and skin
  • Chapped lips
  • Cough
  • Sore throat
  • Static
  • Cracking furniture

If this sounds like your situation, investing in a humidifier is going to be great for both your health and your home in the long run.


Be careful, as you'll often see diffusers and humidifiers listed together - but they're very different things.

A diffuser is for distributing essential oils into the air by mixing them with water. They're for aromatherapy, rather than regulating moisture levels.

What are the best humidifiers for me?

In terms of size, you’ll need to make an initial decision on how large a unit you’re wanting to invest in:

  • Tabletop: These humidifiers are portable and ideal for use in a single room. They’re a great space-saving solution and are also the cheapest to buy. As a downside, tabletop models have small tanks that require frequent changing.
  • Console: Console humidifiers are relatively mobile but are bigger than tabletop models and as such can humidify more than one room and need a change of tank less frequently. Console models can be cumbersome and some models are louder than others, so bear this in mind when narrowing down your options.
  • In-duct, or whole house humidifier: This is the best humidifier if you’re looking to humidify the whole house; it’s plumbed into the water supply and taps into the air ducts. They usually blow air over a wet wick (evaporative-bypass units), with some emitting a warm mist into the air to moisturize. Other models are nebulizers, which use a spray technology to humidify. In-duct humidifiers are the cheapest to run but may need to be professionally installed.

Humidifiers use one of two types of basic technology:

  • Warm mist humidifiers: These use a heating unit to boil water before cooling the hot steam. They’re considered healthier, as the boiling process removes impurities from the water.
  • Cool mist humidifiers: These disperse room temperature mist and are great for adding moisture to large areas. They also use less electricity, as they don’t heat the water first.

Next, you’ll also need to consider the following:

  • Evaporative humidifiers: The most common design, these use a fan to blow air over a wet wick filter to create a mist. They’re also filtered, trapping minerals and dust.
  • Ultrasonic humidifiers: Use high frequency sound vibrations to create an ultra-fine mist. They tend to be quiet, while they don’t tend to have filters.
  • Impeller humidifiers: Produce mist using a rotating disk to propel water through a diffuser, breaking the water into tiny droplets.

What should I consider when shopping online for a humidifier?

Budget: Have a think about cost and your budget. You can easily find a small, cheap humidifier for around £30. Cheaper models will have less features and will be smaller and arguably less effective, too. Expect to pay a couple of hundred pounds for a top of the range model. More expensive humidifiers will have a larger capacity and will often be more effective too.

Humidistat: Humidifiers are great for adding moisture to the air, but if they go too far the other way and over humidify you’ll have a new set of problems on your hands. A humidistat helps to regulate and control humidity levels by switching off at the optimum point. 

Timer: Great for automatically turning on or off at a set time. 

Noise: Humidifiers can be noisy, especially evaporative models. Warm-mist tabletop models and ultrasonic humidifiers are usually the quietest units. If you do opt for an evaporative humidifier try and position it away from areas such as the living room or bedrooms. 

Storage: Where will your new humidifier be kept? Depending on the size of the water tank, humidifiers can be on the large side so make sure you have plenty of storage space for your chosen model. Check the dimensions of your shortlisted humidifiers to ensure you’re getting a size that’ll fit neatly in your home. As a general rule, small and compact humidifiers are less efficient, but they do take up less room.

Capacity: It’s important to find a humidifier with the right capacity for your home. Too big and it’ll create condensation and possibly cause mildew, too small at its efficiency will be compromised. A model designed for 700 sq ft is fine for a bedroom or small room. 

Energy efficiency: Humidifiers are not the most energy efficient of machines, and the larger units can be extremely expensive to run. If energy efficiency is important to you be sure to check for energy efficient features and controls.

To summarise, here’s what you should consider when shopping online for a new humidifier:

  • How much space do you have for your new humidifier?
  • How much do you want to spend on your air humidifier?
  • How often do you mind changing your humidifier’s tank?
  • Which room will you be using your new humidifier in? Does it need to be a quiet unit?
  • At what capacity does your humidifier need to work?
  • What features are important to you?

I’ve found my ideal humidifier: What next?

Once you’ve compared the humidifiers in our comparison table above, the hard work is over: now all you need to do is click through to seal the deal. 

By clicking a deal you’ll be taken directly to the correct page on the official website of the retailer of your choice. From there it’s simple.

Remember, we’re not actually a retailer – we just collect all the deals from the retailers you know and love. We don’t make money from you directly, but from advertising – hence no hidden costs and commissions. 

Happy shopping!