Top-Rated Plant Humidifiers in Australia for 2024

Plant humidifiers are a great way to help your plants grow and thrive in dry climates.

A humidifier can help keep your home at the right humidity level to allow your houseplants to be happy and healthy.

Plants thrive when they have proper levels of moisture in the air around them. If you’re looking to grow tropical plants like orchids or ferns at home, these will require higher levels of humidity than most others do.

But not all plant humidifiers are created equal. There are several different types of humidifiers on the market and some work better than others.

In this article, we run through our picks for the best humidifiers on the market in Australia to help you find the perfect solution for your houseplants.

Our top pick: InnoBeta Cool Mist Humidifier

If you’re looking to keep your home at optimum humidity for your indoor plants, the InnoBeta Cool Mist Plant Humidifier is a great option.

It’s whisper-quiet, has ultrasonic technology to reduce noise, and supports whole night or all day humidifying. The auto shut-off function makes it safe for use in your home.

Why we chose it:

Aside from being high quality and reliable, there are several specific features that make this our favourite plant humidifier.

We like how you can use either touchpad or remote control to control the built-in timer, vapour flow, and other settings. The remote control is particularly handy if you’ve positioned the humidifier out of sight behind your plants.

We also love how quiet this device is when in operation. If you’ve never used a humidifier before, you may not appreciate this, but it’s great to know that you can run it at any time of the day or night without disturbance.

Finally, this humidifier is very easy to clean, thanks to its removable water tank.

How it compares:

One standout feature of the InnoBeta humidifier is that it comes with a separate hygrometer so you can manage your humidity level, making it easy to find the right amount of moisture for your plants.

In terms of capacity, the 3 litre water tank is fairly comparable to the Breville unit featured later on our list and much larger than portable devices.

Unlike other small humidifiers, this device does not have a battery so needs to be plugged into the wall for operation, which makes it less portable.

Best value: SmartDevil Portable Small Humidifier

This is a small, portable humidifier with a built-in battery that can last for up to 8 hours of continuous use. It has a 600ml water tank, and it comes with two spray modes: continuous and intermittent.

This humidifier is very affordable, compact, and quiet. It’s perfect for small spaces and is the ideal way to add moisture to the air without making too much noise.

Why we chose it:

Our favourite feature of this humidifier is its built-in battery which means it can be used without plugging in. You can place it anywhere in your home without worrying about finding an outlet nearby.

This is particularly handy if you need to move it around the house to different plants.

How it compares:

This humidifier is easily the most basic humidifier that we’ve looked at. It features a much smaller water tank (0.6 litres) than the other options, and fewer settings to choose from.

However, it’s the only humidifier in our review that features a built-in battery, making it the most portable option.

Upgrade pick: Breville the Smart Mist Top Connect Humidifier

With its ability to be controlled using your phone or voice and its 4-litre removable top-fill water tank, this premium humidifier is designed to give you complete control over your home’s humidity level.

Why we chose it:

This appliance does a lot more than simply adding vapour to the air. If you like smart home devices, then this one is worth a closer look.

Our favourite feature is that it allows you to achieve the perfect humidity level in your room by controlling it remotely via your smartphone or tablet using the Breville Home Connect app.

It also can be connected to Amazon Alexa or Google Home so you can control it with your voice.

Meanwhile, vapour is produced by something Breville calls a “water atomising transducer”. It comes with 5 mist levels to choose from.

It also features an ion generator that produces negative ions to attract airborne particles to assist with purifying the air in your home.

How it compares:

The Breville humidifier comes with a lot of features not found on other devices. These include WIFI connection to an app, voice control, live comfort control, a negative ion generator, and more.

The main downside of this unit is the price tag. As you may have guessed, this humidifier doesn’t come cheap.

While it is most likely overkill for most people wanting to add some humidity for their plants, if you’re interested in taking more control of the air in your home this could be a great option.

What is humidity?

Humidity, in simple terms, is the amount of moisture in the air. It is measured in either relative humidity or absolute humidity.

Relative humidity is the amount of water vapour in the air compared to how much moisture it can hold at a given temperature.

Absolute humidity is the total amount of water vapour in a given volume of air (usually a cubic metre).

What is a humidifier?

A humidifier is a device that increases the humidity level in a room. They’re commonly used for people with allergies and asthma because they can help relieve their symptoms.

Humidifiers also help some plants grow better, as they help replicate the level of moisture that a plant would get in its native environment.

Plant Humidifier 1 | Accessories

Types of plant humidifiers

Humidifiers come in a wide range of shapes and sizes. The best type to choose will depend on your needs and your budget.

The most common types of humidifiers include:

Warm Mist Humidifiers: These are the most common humidifiers. They use a heating element to vaporize water into a fine mist, which is then distributed throughout the room.

Cool Mist Humidifiers: Cool mist humidifiers are less common than warm mist models but they offer the benefits of using less energy. Note that the vapour on cool mist humidifiers won’t be purified.

Ultrasonic Humidifiers: These humidifiers use ultrasonic vibrations to turn water into a fine mist. They’re usually very quiet and don’t require any filters or fans.

Evaporative Humidifiers: Evaporative humidifiers have a fan that blows air through a wet wick filter. This type of humidifier is inexpensive and easy to maintain, but it doesn’t distribute mist as well throughout the room.

Why use a humidifier for your plants?

Plants thrive when they have proper levels of moisture in the air around them. If you’re looking to grow tropical plants like orchids or a Bird’s Nest Fern at home, these will require higher levels of humidity than most others do.

Plants need the right humidity because it prevents leaf damage that can occur from dry air and it helps the plant retain water better.

Plant Humidifier 2 | Accessories

Humidifiers are an easy way to ensure that you have enough moisture in your home’s air so that your plants can stay healthy, happy and thriving.

They’re also quite simple devices: You just fill up a water tank, turn on the humidifier unit and let it work its magic by releasing mist into the air.

How to use a humidifier for your plants

Understanding your plant’s humidity needs is crucial to choosing the right humidifier for your space.

Plants evolved in different environments all over the world, so it’s important to know what type of climate your plant is used to and whether it requires increased moisture.

Plant Humidifier 3 | Accessories

For example, many tropical plants like Monsteras thrive in 60-70% relative humidity—much higher than other types of plants that live in drier climates such as cacti or succulents (around 40%).

The next step is to determine the humidity level in your home. The easiest way to do this is by using a hygrometer, which measures the relative humidity in your environment.

After determining what level of humidity works best for each individual plant, you’ll be able to pick out the right humidifier based on its size and capacity.

Warm vs cold mist

Warm mist humidifiers heat water using a heating element until it turns into vapour and is then dispersed into the air.

Cold mist humidifiers disperse water directly from a reservoir, which is either cold or room temperature.

Both types are suitable for plants, so there’s no reason to choose one over the other in that regard.

However, if you’re also interested in using your humidifier to help ease coughing or congestion due to a cold, current research suggests you may want to consider using a cool-mist model instead of a warm-mist one.

The bottom line

Humidity is important for the growth of plants, and humidifiers can help you to keep the humidity in your house at an optimal level.

Plants need humidity for photosynthesis and transpiration (the process by which plants lose water from their leaves).

Without sufficient humidity, photosynthesis slows down or stops altogether; without enough transpiration, roots will begin to rot.

There are many different types of humidifiers available, so it’s important to do your research before you buy one.

Humidifiers can be used in conjunction with grow lights or without them; they will add moisture to the air around your plants, which makes them healthier and happier.


What kind of humidifier is best for plants?

Any type of humidifier will be sufficient for adding moisture to the air for your plants. Therefore, the important considerations are noise, ease of use, and price.

What indoor plants need a humidifier?

Whether or not your plants will benefit from a humidifier depends on the humidity in your home and the type of plants you are growing. Plants that require higher levels of humidity include orchids, ferns, ivy, fiddle leaf fig, and peace lily.

Photo of author

Steve Kropp

Based in Melbourne, Steve's passion is vegetable gardening, and he’s been writing about it for almost 5 years. He also loves all things DIY and is always looking for a new project. When not working on his own garden projects or blogging, Steve enjoys spending time with his family, cooking meals with produce harvested from his garden, and coaching his son’s footy team.


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