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H2O UP Smart Humidifer 1 Litre - Snow Rainbow

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It's not often a product that looks this good, performs just as good as it looks. I'm a big sock fan (like a hug for your feet). So when I say this humidifier blows my socks off,  you know there's something extra special about it (hint: rainbow).

Cordless. 2 mist functions. 4 light settings (I adore the glorious Rainbow Mode)... there's a LOT to love. Except watch out for the sneaky 'you'll-only-do-this-wrong-once' silly mistake (more coming up about that). Honestly, you really will make this mistake only once (then either crack up at yourself, or if you're as lucky as me, your partner will remind you endlessly of their amusement while you feel foolish)...

The H2O UP Smart Humidifier


H2O are a family of portable, wireless humidifiers in 4 sizes and 5 colours across the range. This is the H2O UP model, which has the 2nd to largest capacity, a higher dual mist output... and those lights (oh my goodness, those lights). 

The 4 sizes are 200ml Mini, 750ml, 1.1 litre, and this is the newest model in the family, the H2O UP with a 1 litre capacity.

H2O UP only comes in the Snow Rainbow colourway. The other models come in Snow, Sage, Powder, Blush and Mint.
Snow Rainbow combines a crisp, sleek white, minimalist design, with subtle chrome detailing. But just you wait. Switch those lights to Rainbow Mode and prepare to be obsessed.

This is the only humidifier in the H2O range with Rainbow Mode.


Do your plants need a humidifier?

Humidity is about more than just spoiling your plants. Many of our favourite indoor houseplants come from naturally tropical habitats with high humidity all year round. Our heated and air conditioned homes cause them to suffer, even more so in homes with a fireplace, DVS or HRV system, designed to take excess moisture from the air.

Calathea Orbifolia, Stromanthe Triostar, Philodendron Pink Princess, String of Turtles, Orchids, Ferns... the list goes on and on of high humidity lovers. Signs to watch out for that your plants are asking you to raise their humidity include leaves with brown edges and tips and curling or wilting leaves even when you're meeting their soil watering needs. For flowering plants, also look for buds that fail to develop, or drop before they open, and flowers that shrivel soon after opening. Winter can be so much worse for our tropics loving plants too.


Long run-time. 

The larger 1 litre capacity combined with 2000 milliamp hours battery, provides 3 to 6 hours of precious humidity for your plant's happiness, with 2 humidity modes, continuous (high) or intermittent (low).

Either plug in and run corded for continuous use using the included USB cord which plugs directly in to a standard USB power board, a laptop or computer, or simply use your phone charger or speaker brick and plug in to the wall. 

Or (my favourite mode), run it cordless and locate your H2O UP anywhere you like. Completely portable and wireless. Now you can locate your plants in the best position for their needs, and your humidifier can go to them. No more restrictions to be near a power outlet. No more ugly, messy cords to wrangle with.

For an even longer cordless run-time, you're better to go for the H2O 1.1 litre model  or 750ml instead. Their round designs give them more room for bigger batteries compared to this super slim design. The 1.1 litre has double the battery rating (4,000 instead of 2,000 mAh) for longer cordless run-times, however note this model - the H2O UP - is the only one with the blow-your-socks-off Rainbow Mode.

2 mist modes + low-water auto shut-off.

Intermittent Mode 
cycles between 3 seconds on one mist outlet, then 3 seconds on the other, with one mist outlet going at a time. Halving the output and doubling the run-time when cordless. Continuous Mode provides a full, constant, higher output mist, from both outlets at once, for maximum humidity heaven.

One 1 litre fill lasts up to 6 hours in Intermittent Mode, or up to 3 hours in Continuous Mode. Plus y
ou can relax knowing your H2O Smart Humidifier will switch itself off automatically when the water level gets too low.

Super easy to refill and keep clean too. Just pull the top up, off the base, revealing the large 1 litre capacity water reservoir inside, with smooth sides for an easy, quick wipe clean when needed.

Here's where that *WARNING* comes in!

Don't do what I did, and lift it up by the top when you want to move the whole unit. Because doh! The top comes off the base, right? That's how you refill it. So unless the base is full and heavy (so it stays behind and the top neatly lifts off), guess what happens? Yep, tipsville. Small tsunami. Water everywhere. Argh. If you already own any of the other H2O humidifiers, you'll be used to lifting it any which way you please because they're round, so the top screws securely on to the base. This model is not like that.

Always pick it up from the base, so you lift the base and top at the same time
. Never lift only from the top (unless you feel like an impromptu shower). Not awesome. I was already in a grump the first (and only), time I made that mistake, so didn't share my partner's hilarity at the state of the floor and my jeans. Don't be like me. 

4 LED light modes (including Rainbow Mode)

Yes, I know this feature is 100% for the people, not our precious plants, but if you're anything like me, prepare to be obsessed with these colour modes.

At first all I could do is be mesmerised by Rainbow Mode. Then I graduated to the calm, chill Ambient Mode, and now I've advanced to the single Colour Selector mode (this gorgeous peachy pink is my current favourite to pick, but scroll through the photos to see more). I do keep changing my favourite and selecting new colours. 

1. Rainbow Mode

The first long press of the settings button puts you in Rainbow Mode. You have to see it in real life to truly appreciate this mode. It's hard to capture on video. A glorious rainbow of colours cycle around in the mist. And yes, you can run the colour modes independent of the mist modes if you just want to embrace those disco vibes with the mist off (I shared a video of Rainbow Mode here on Facebook if you want a sneak peek).

2. Ambient Mode

The second long press of the settings button puts you in Ambient Mode. Each individual colour gently blends in to the next. Not sure I could accurately count the number of colours, but here are a few favourites...

3. Custom Colour Selector (or 4. Colour Off)

See a colour you love? The third long press of the settings button, selects that one colour to stay on. Then the last, long press turns colour off altogether, so you can run mist only, no colour.


Compact, slim design for plant shelves

The tall, slim design measures 17cms tall x 6cms wide x 15cm long. Simply slide it in amongst your humidity loving plants. 

What's in the box?

Your new H2O UP Smart Humidifier comes with the top, base, USB charging cord, 2 cotton filter wicks and built-in low water sensor with auto shut-off.

Those filter wicks last on average 3 to 6 months with daily use, so it's worth grabbing a couple replacement filter wicks when you buy your H2O UP. They fit the Standard Wick size. You can change them separately, one at a time (they need 2), but it's worth changing both for new each time, so best to grab an even number. 

How to set-up & use your H2O UP

Get the full set-up & settings directions here >

Flat Rate Shipping 

Flat rate shipping is $5.50 nationwide (or $9.50 for rural). Add as many products to your order as you like without paying anything extra for shipping. The only exceptions are plants and fragile or oversize products (like handmade pottery and coffee table books). 

You can also upgrade shipping to signature required. Definitely worth it for anything valuable or limited edition that can't be replaced. Choosing signature required also gives both of us the ability to claim if anything goes wrong with the courier. Well worth the upgrade I reckon. Signature required is flat rate $7.50 nationwide (or $12.50 for rural).

Fast Delivery 

Everything in stock on my site is in stock right here in Auckland, NZ, right now, ready to ship today or on the next working day. No drop shipping from other countries. No delays. I ship every day, Monday to Friday (except plants which only ship Mondays and Tuesdays). For everything else, if you order by 8pm, your order's likely to be on the courier at 8am the very next morning, Zoom zoom!

More about shipping and delivery > 

Why choose to buy from Love That Leaf?


When you buy from me you're supporting a local, small business. Love That Leaf is a registered NZ business, based in Auckland. Our team of 3 is me, Anna, my partner, and our not-so-little helper (my 10 year old son who's definitely caught the plant bug).


You'll also get your goodies super fast. Everything showing in stock on the website is right here, in stock, ready to ship to you. I ship daily, Monday to Friday. If you order by 8pm your order will be normally be on the courier at 8am the next morning. 


I stand by everything I sell and will always help put right anything that goes wrong. When you choose to buy from an NZ business, you're covered by the Consumer Guarantees Act too, unlike overseas purchases where you're often stuck if anything arrives damaged or stops working.


I won't go awol on you. I'm here for support and advice anytime.  I'm very happy to help even if you haven't bought from me yet. A lot of lovely people helped me along my plant journey, and I want to pay it forward. Please don't hesitate to ask for help.  

Reviews from customers

"By far the best customer care I've had in a long time. Website is such a wealth of information and the email with instructions for use after my purchase was fantastic. The pipette for measuring the correct amount was such a great inclusion, and the personalised message on the package was very cool. Definitely my go to shop for plant supplies now. Thanks Love That Leaf! A+++" Karyn Wilson

"I've ordered plants/plant supplies from a variety of shops over the last few years but the customer service, communication and prices no where compare to Love That Leaf! Highly recommend to everyone and Love That Leaf is now my go to for anything plant related Definitely 10 out of 10 service." Liz Wakeham

"Exceptional customer service. Communication was fast and friendly and I received a follow up email with additional advice on how to get the best from the products I had purchased. There is something a bit extra special about Love That Leaf and I highly recommend them!" Lisa Daly