The 7 Best Top Fill Humidifiers – (Reviews and Guide 2020)

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In need of a top-fill humidifier? If you want to fill your humidifier easily from now on, then use this guide to find the best top fill humidifiers.Why search for the best top fill humidifiers? Well, many humidifier owners will tell you that disassembling the device every time you have to refill it is a real pain.

Even manufacturers know this, which is why they came up with top fill humidifiers. These amazing devices are quick to refill and you will not have to disassemble anything to get it to work again. Just remove the lid, and you will be able to add the water in the tank.

However, picking the best one that suits your needs can be quite challenging. With the number of products on the market, you can find yourself endlessly scrolling on online shops with no success or idea on how to choose a device. This is why we’re here, though – in this post, you will find some amazing product reviews and a buying guide so you can find the best top fill humidifiers.

Best Top Fill Humidifier Comparison Chart

Last update on 2020-10-26 / Affiliate links / Images from Amazon Product Advertising API

But First things First: Who Needs a Top Fill Humidifier?

Top-fill humidifiers are especially helpful for people with a busy schedule. When you’re back from work, the last thing you want to do is disassemble the unit to clean or refill it. Therefore, with a top-fill unit, all you’d have to do is remove the lid and clean the tank, or just fill it with water.

It’s also useful when you are not at home and you want your child to fill it up, for example. This is easy to do even for children (above 7-8 years of age).

However, the ones benefitting the most from these devices are elderly and disabled people. Those dealing with conditions like arthritis or other issues related to mobility can fill out the tank without difficulty. Thus, they can enjoy the moisturizing effect that these humidifiers can bring.

People who are not able to lift heavy water tanks will also appreciate a unit like this. They can just fill the water tank near their bed too, without having to carry it from a place to another. It’s a huge benefit to consider if you’re in a similar situation.

Benefits and Drawbacks of a Top Fill Humidifier

In need of a top-fill humidifier? If you want to fill your humidifier easily from now on, then use this guide to find the best top fill humidifiers.Even the best top fill humidifiers will have their drawbacks. Knowing them before purchasing the device will help you decide if it’s the right unit for you or not. That being said, here are some pros and cons of top fill humidifiers.

  • Pros

The main and most obvious benefit of a top fill humidifier is the fact that it can be easily refilled and cleaned. Unlike other types of humidifiers, you don’t have to remove the tank for these tasks.

All you have to do is remove the top lid of the unit, and you can just pour the water inside. The same goes for cleaning – you will immediately gain access to the inside of the tank and you can clean it.

Another amazing thing when it comes to these devices is the fact that you won’t necessarily have to carry them to another place to refill them. Instead, you can refill them next to your bed if you want to. Just bring the water with you and refill the tank whenever necessary.

If the tank has a wide opening, it will also make sure that you can reach every corner when you need to clean it and wipe off the excess water.

  • Cons

Now, it’s important to know the drawbacks too.

First of all, tanks can be removed sometimes, even when talking about a top fill humidifier. But this may cause the water to drip out of the tank and spill on the furniture, the floor, or any surface that happens to be underneath. This requires you to be more careful when refilling the unit – and even place a towel underneath all the time.

Bacteria and fungus may also start to form in the tank, and you may have to start cleaning it more often. Some tanks have wider openings than others and if you get one with a smaller opening, cleaning may become more difficult.

Aside from the tank, the lid may also start developing bacteria and fungus underneath, so that part of the device will have to be checked frequently to keep the device safe to use. If you don’t, then the water released into your atmosphere in the form of mist will be less healthy to inhale.

At this point, it would be great to learn about the best product in the market according our expert reviews. 

The Best Top Fill Humidifiers Reviews (Updated List)

1. HUMIDIMASTER 6L Ultrasonic Humidifier with Top-Fill – Best Budget Unit

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HUMIDIMASTER 6L Ultrasonic Humidifier with...
  • AN ULTIMATE USAGE. Humidimaster is your ultimate tool that can be used as a personal humidifier, baby humidifier for nursery, or wherever you need moistened and purified air. A 30dB sleep mode makes it a perfect humidifier for bedroom.
  • CONVENIENT DESIGN. The TBI Pro cool mist humidifier is easy to clean and refill. Simply remove the air humidifier's lid and pour cool water to the water tank. The construction is completely spill-proof.
  • LARGE CAPACITY. With an impressive 6L water tank, it can be used as a cool mist humidifier for bedroom, baby humidifier, any large room during sleep, or even as a plant humidifier indoor.
  • 360° HUMIDIFICATION. The humidifier includes 360° rotating nozzle and 3 mist settings for an even level of humidity and low risk of diseases, germs, and bacteria.
  • MEDICAL STONE FILTER. This ultrasonic humidifier comes with a medical stone filter that purifies water and prevents impurities or bacteria in the water tank. Effective hydration ensures healthy, moist air.

Last update on 2020-10-26 / Affiliate links / Images from Amazon Product Advertising API

A high-quality top-fill humidifier doesn’t have to be more expensive than your monthly income – and this Humidmaster product is here to prove it. It comes for a very decent price while maintaining the features that make it so amazing. As such, you will acquire an affordable humidifier with great features.

The tank of the unit has a 6L capacity and can run for longer. You get two days of use with the amount of water stored inside, so you will always be sure your house is properly moisturized. With such a large capacity, it’s also great for bigger areas such as large rooms or bedrooms, and it can also be used for a child’s room.

Since water quality is so important, this device has been provided with a medical stone filter so the mist generated can be much healthier. The water will be purified and free of any contaminants such as bacteria or viruses, leading to a much healthier environment to live in.

Pros

  • The operation is whisper-quiet, and you can turn off all indicators
  • Rotating the 360-degree nozzle humidifies the whole room
  • The tank is very spacious with a big capacity
  • The unit is easy to fill from the top

Cons

  • It doesn’t have any carry handle

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2. Raydrop Humidifier for Bedroom, Top Fill – Easiest Tank Cleaning

raydrop Humidifier for Bedroom , Top Fill 3.5 L...
  • Top fill humidifiers for bedroom, large room, babies and office
  • Easy clean humidifiers: Wide opening water tank makes it easy to clean every corner
  • Medium size capacity: 3.5 L / 0.9 Gallon provides long-lasting mist for 11 - 34 hours, humidifying all night long avoiding skin and throat dryness
  • Whisper-Quiet Operation: This cool mist humidifiers can be used at night without sound of water gurgle or fan noise
  • The 2-in-1 Humidifier & Diffuser: Fill your room with your favorite essential oils, while enjoying the humidifier’s cool mist

Last update on 2020-10-26 / Affiliate links / Images from Amazon Product Advertising API

Nobody likes spending an eternity trying to clean the tank, and this humidifier makes everything easier for everyone. The tank can open, allowing you to reach all necessary areas when cleaning it. This is going to be very useful in maintaining the device and making sure it works properly for a longer time.

An amazing thing about this humidifier is that it comes with a diffuser. Thanks to that, you will not only enjoy the moisturizing benefit of the mist but also have the chance to spoil yourself with your favorite aromas from time to time. You just need to get some essential oils and you’re ready to go.

The whisper-quiet operation is something worth praising as well. Even while you sleep, the device can be left running and you won’t hear any fan or gurgling sound.

Additionally, with a 3.5 L capacity, the humidifier can run for about 11 to 34 hours.

Pros

  • Amazing for medium to large rooms
  • Allows you to add essential oils
  • Can run for long periods
  • Will not wake you up/keep you awake at night

Cons

  • Can start leaking

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3. LEVOIT Humidifier for Bedroom, Cool Mist Humidifier for Babies, Top Fill – Best for Ultrasonic Technology Benefits

LEVOIT Humidifiers for Bedroom, Cool Mist...
  • 2-in-1 Humidifier&diffuser: The Dual 100 acts as both a humidifier and an aroma diffuser, letting you add essential oils directly into the base for aromatherapy
  • Top-Fill Design: For easy refills and cleanup, simply remove the lid at the top of the Dual 100 to directly access the water tank
  • Safe and Reliable: BPA free ETL listed and CA65 tested make it safe for everyone it will automatically shutoff when water level is low or the water tank is removed
  • Advanced Ultrasonic Technology: Spiral Air Duct Technology produces an ultra-fine mist, humidifying the room without wetting the floor or any furniture
  • Adjustable Mist Level: Easily choose between 3 mist levels to create a comfortable environment and provide temporary relief from coughing & congestion, dry throat, and allergies
  • Powerful Mist: The Dual 100’s mist levels reach speeds of 220mL/h and heights of up to 100 cm, quickly and efficiently spreading humidity throughout your environment.
  • Power source type: Corded Electric
  • Wattage: 24.0 watts

Last update on 2020-10-25 / Affiliate links / Images from Amazon Product Advertising API

Ultrasonic technology has been incorporated into this device, which is what makes it worth the money. The humidifier can produce an ultra-fine mist. As a result, the air in the room will be moisturized and the furniture and floor will not get wet.

The mist level is adjustable, meaning you can always get the exact moisturizing level you need. Therefore, no matter how dry your environment is – you can always use this device as a solution. Your room will feel more comfortable than ever and you can relieve multiple respiratory issues, as well as cough and congestion.

Another feature you’ll get with this unit is the 2-in-1 aspect – it acts as both a humidifier and an aroma diffuser. So, not only will you manage to add humidity to your house and prevent dry air, but you can also inhale some nicely smelling aromas.

Pros

  • Can humidify without soaking the floor or furniture
  • Can cover the entire room with the amount of mist it produces
  • You can achieve the desired experience thanks to the adjustable mist levels
  • It’s safe and reliable with an auto-shut off feature

Cons

  • Can grow mold or mildew after some time

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4. AirExpect Cool Mist Humidifier for Bedroom – Top Filling – Best Filter

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AirExpect Cool Mist Humidifier for Bedroom – Top...
  • TOP-FILL DESIGN & SAFETY AUTOMATIC SHUT-OFF - Remove the lid to add cool water into the water tank, no more having to disassemble your humidifier to get every spot cleaned, easier to refill and clean than traditional humidifiers. To avoid excessive humidification and ensure safety, the humidifier will auto shut down when water runs low or when the water rank has been removed
  • 3 MIST MODES - 3.5L/0.92Gallons water tank allows up to 24 hours of continuous ample mist. High/03, medium/02, low/01 mist mode can easily adjust moisture output for different conditioned rooms, relieving dry throat, coughing, dry skins
  • WHISPER-QUIET & INNOVATIVE DESIGN - New “L” shape air duct, which makes more exquisite and ample mist. Its ultrasonic tech operates at a near-silent 28dB. The silent controls and the indicator light’s automatic shutoff let you enjoy comfortable, disturbance-free sleep
  • UPGRADED FILTER CORE FOR HEALTHY BREATH - For absolutely healthy mist, AirExpect humidifier is embedded with premium internal base, along with advanced Microporous Carbon Filter Core to avoid dust and stains. Set to control mist time(2H/4H/6H/8H) for automatic turn-off. You can turn off 7-color LED mode for an undisturbed slumber or on for a romantic atmosphere
  • WHAT YOU GET - Full set in one package: 1 AirExpect Cool Mist Humidifier, 1 Cleaning Brush, 1 User Manual and 1 Charger Adaptor. Along with a lifetime of customer support, rest assured

Last update on 2020-10-25 / Affiliate links / Images from Amazon Product Advertising API

Filters are some of the most important parts of a humidifier and this model has an upgraded one. In order to make sure the mist generated is healthy, this humidifier has a Microporous Carbon Filter Core that ensures you will not deal with dust and stains. So, if you want to make sure you’re inhaling high-quality air, then this model is what you need.

With an “L” shape air duct, this humidifier has the ability to create a more ample and exquisite mist. That’s not all, though – it can also operate very quietly, which makes it ideal for use at night. As for the amount of light, there’s an automatic shut-off that makes sure the light won’t keep you up.

You can control the amount of mist your room is getting through the 3 mist modes available. Thanks to that, you can humidify your room as much as you want to. It will act as a relief for cough, dry throat and dry skin too.

Pros

  • Automatic shutoff when the water runs low
  • Quiet while you sleep
  • Amazing filter that prevents dust and stains
  • Allows you to pick from 3 available mist modes

Cons

  • The control buttons are not that sensitive

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5. GENIANI Top Fill Cool Mist Humidifiers for Bedroom – Best for Baby Nurseries

GENIANI Top Fill Cool Mist Humidifiers for Bedroom...
  • 2-in-1 HUMIDIFIER AND DIFFUSER. Fill your room with your favorite essential oils while enjoying the humidifier’s cool mist.
  • SMART MODE. Maintain a healthy humidity level automatically with a built-in intelligent sensor. You can manually adjusе the moisturizing speed by choosing a low, medium, or high setting.
  • TOP FILL HUMIDIFIER. Refilling has never been easier! Simply pour water into the small insert at the top of the unit. To clean a humidifier, remove the lid and wipe the empty tank with a wet cloth.
  • SLEEP TIGHT. While you are sound asleep, our humidifiers for bedrooms moisturize the room at the 38dB noise level. The unit is as quiet as a ticking clock.
  • IDEAL HUMIDIFIER FOR BABY NURSERIES. A soothing night light helps kids fall asleep. The unit ensures the ultimate baby safety by shutting down automatically if there’s no water in the tank. 2-YEAR WARRANTY. Risk-Free Purchase.

Last update on 2020-10-26 / Affiliate links / Images from Amazon Product Advertising API

If you need a good top fill humidifier for a baby nursery, then you might want to turn to this GENIANI product. What makes it so suitable for baby nurseries is the safety feature. If there’s no water left in the tank, then the unit shuts off by itself, making sure the babies are not put at risk.

Another thing that makes it great for baby nurseries is the fact that it isn’t noisy. There will be no fan or gurgling sound waking up the children. It only produces 38Db of noise.

The humidifier has a smart mode, which includes a built-in sensor that makes sure the humidity levels are maintained at a healthy level. Additionally, you will have the ability to adjust the mist level how you want it to be. Choose between low, medium, and high, and you will achieve the desired effect.

You can also add essential oils if you want to enjoy some nice essential oils. So, aside from the mist with the humidifying effect, you can also inhale some amazing aromas and feel more relaxed.

Pros

  • Easy to refill and clean
  • It’s amazing for baby nurseries
  • Isn’t noisy
  • Has a sensor that keeps moisture at healthy levels

Cons

  • The floor and furniture could become damp because of it

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6. Homasy Cool Mist Humidifier Diffuser, Top Fill Humidifier for Bedroom – Best Dry Skin Reliever

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Homasy Cool Mist Humidifier Diffuser, 2.5L...
  • ALSO AN ESSENTIAL OIL HUMIDIFIERS: Essential Oil Compatible, you can directly add some drops of essential oil into the water tank, the humidifier turns to an oil diffuser, allowing you to enjoy the fragrance and relax your mind immediately
  • CONVENIENT TOP-FILL DESIGN: One-piece & top-fill opening design make the humidifier easier to refill the water and clean. No need to remove the water tank anymore, just twist the cover down and directly add water through the large opening top.
  • AUTO SHUT OFF & RELIABLE: This cool mist humidifier for bedroom will automatically shut off with red LED light on when runs out of water. You can totally free your worry about it will dry running when you are sleeping.The automatic shut-off design always reassure you.
  • 2 MIST LEVEL & SLEEP MODE: Sensitive touch button helps you easily change the working modes of the humidifier. There are modes to choose: high mist mode, low mist mode and sleep mode. The indicator light will be turned off in the sleep mode.
  • 360° EFFICIENT HUMIDIFICATION: Homasy cool mist humidifier can moisturize the air for up to 30H of continuous operation, 360° uniform humidification, so you can breathe the fresh air even far away from the humidifier, smell the fresh air like you are in a forest.

Last update on 2020-10-25 / Affiliate links / Images from Amazon Product Advertising API

Are you dealing with dry skin? Well, this humidifier might be the solution. This device can help you deal with dry skin, as it maintains the home’s humidity level between 40% and 60%.

But of course, it can do more than that. For example, it can improve your sleep quality. It is an ultrasonic cool-mist humidifier with whisper-quiet operation, only producing 28Db of noise. The sleep mode will ensure your sleep is not disturbed by any sound.

Add that to the fact that you can easily refill and clean your tank, without disassembling the unit. Also, you can add some essential oils to your tank, freshening up your space with some nice aromas.

The water tank has a 2.5L capacity. As a result, it has the power to humidify rooms for up to 30 hours, at least if you keep it on low mist mode. Apart from that, it has the ability to humidify at 360 degrees, making sure no corner of the room is left untouched.

Pros

  • Has two mist levels for convenience
  • Easy to refill and clean
  • Automatic shutoff in case the water runs out
  • Works with essential oils
  • Can humidify rooms evenly

Cons

  • Water can collect on the lid

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7. Mikikin Cool Mist Humidifier, 4.5L Top Fill Personal Humidifiers with Adjustable Mist Mode – Editor’s Choice

Mikikin Cool Mist Humidifier, Ultrasonic Air...
  • 【Ultrasonic Cool Mist Humidifier】Safely moisturizes the dry air in your room letting you breathe easy and get more restful sleep, moisturize your skin and alleviate the discomfort. The 360° swivel adjustable nozzle allows mist to be dispersed in any direction, hence allowing you to control the distribution of moisture in the room.
  • 【Long-lasting Humidifier & Auto Shut-Off】Design with a large capacity water tank of 4.5L, it can works up for 15 to 30 hours of continuous use. You can enjoy whole night sleep, frees you from refilling water frequently. It features an automatic shut-off safety that will turn off when when it runs out of water, preventing damage to the unit and ensure your safety.
  • 【Deep Sleep Mode - Ultra Quiet】The air humidifier works almost no noise which offers maximum relaxation during sleeping or study without any nasty noise. Turn off the nightlight by pressing the touch panel for 3s. Enjoy all night mist and rest easily. Perfect for your baby and a disturbance-free sleep at night.
  • 【Adjustable Mist Levels Options】With 3 adjustable mist levels, the baby humidifier makes humidify much more precise and effortless to adjust mist output what you want. Just one touch, you can set a customized level according to fit your comfort level and deliver mist to every corner of the room. Provide Ideal coverage for bedroom, living room, nursery, office and so on.
  • 【Easy to Refill & Clean】The bedroom humidifier with top fill design has a flat surface and lareg opening that allows you to refill or clean the tank very effectively.

Last update on 2020-10-26 / Affiliate links / Images from Amazon Product Advertising API

The first noticeable thing about this humidifier is its amazing design. The water tank is transparent, allowing you to see the water even while the device is running. Thanks to that, you can immediately see whether the humidifier needs to be refilled or you need to simply change the water.

The tank has a 4.5L capacity, thus being able to run for no less than up to 15-30 hours, depending on the settings. A 360-degree swivel adjustable nozzle will release the mist in every part of the room, not leaving any spot out – thus, it evenly humidifies the space. So, you can be in control of the moisture distribution in your room.

What’s amazing about this product is that it makes almost no noise, which in return will let you rest during the night. The nightlight can also be turned off, so you’re not disturbed.

The top-fill design has a flat surface, as well as a large opening. Therefore, refilling or cleaning the tank will be a piece of cake.

Pros

  • Can run very quietly
  • Easy to clean and refill
  • Can operate for long periods
  • Has 3 adjustable mist levels
  • Rotatable nozzle included for even distribution of mist

Cons

  • Can start leaking

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Things to Consider in the Best Top Fill Humidifier

In need of a top-fill humidifier? If you want to fill your humidifier easily from now on, then use this guide to find the best top fill humidifiers.If you want to find the best top fill humidifiers, you should be aware of some specific factors. Here are some of the most important ones:

  • Warm Mist vs. Cool Mist

Do you prefer warm or cool mist? Even with top fill humidifiers, you can choose between these two options and buy a humidifier that fulfills your temperature requirements.

When you’re looking for humidifiers, think about the temperature in your house and the usual weather where you live. Is it hotter, or colder? If it’s hotter and you’d like your environment to be a little colder, then a cool-mist humidifier will be the way to go. The only thing to consider is the fact that these may be noisier compared to warm-mist humidifiers, as they use a fan to cool the water.

On the other hand, warm-mist humidifiers will be more fitting when you have colder temperatures and would like to warm up a little bit while moisturizing the air. They are great and less noisy than cool-mist units considering no fan is included.

However, they may not be the best when you have curious children wandering around the house, as these units can get pretty hot. A heated-up humidifier can easily become dangerous around children or pets if tipped over, so keep this in mind when shopping.

  • Sink vs. Bedside Fill

There are top fill humidifiers that you can just take to your sink and refill. Basically, you detach the tank and take it to a sink, and let water pour inside. Then, you take it back onto the base of your unit.

But you should think well whether you need this type of humidifier or one that can be filled at the bedside using a jug. If you have elderly or disabled people in your house or happen to be one, then going for a bedside fill one will be the best choice.

  • Tank Capacity

You can’t buy a device like this one without considering the tank capacity. Top fill humidifiers will come with a variety of capacities, and you have to consider your room size when making the decision. Pick a size that is suitable for you and your needs.

Also, if you are opting for a device with a detachable tank, then think about the fact that you will have to carry it a lot, and it may be heavy if it is too large.

  • Filters

The filtration system is important because it helps filter out the bacteria and other contaminants from your water tank. If you want to inhale healthier mist, consider picking a top fill humidifier with filters.

  • Ease of Cleaning

Some humidifiers are easier to clean than others as they either have a detachable tank or a wide opening. Look for one that makes cleaning and maintenance easy unless you want deposits to affect the water quality in the tank.

  • Materials

It’s important to choose a top fill humidifier that lasts for a long time. That being said, look at the materials it was made from. Avoid low-quality ones if you’re looking for a long-lasting unit and consider sturdier ones, even if they boost the price.

  • Noise Level

For a good night’s sleep, you have to consider a humidifier that is quiet enough to let you rest properly. In general, the noise level is specified in the features or the reviews so look for that.

  • Portability

Portability is especially important since you may have to move the device from a place to another for refilling or cleaning. Look for a humidifier with a carry handle to make your job easier.

FAQs

Are you still looking for more information on top fill humidifiers? If that’s the case, you may find it in these commonly asked questions and their answers.

Q. Do I need to unplug the humidifier each time I refill the tank?

A: Yes, you have to unplug a humidifier before you refill it or clean it. This is to keep yourself safe, and also to make sure the unit is maintained properly and lasts for longer.

Q. Where do I add essential oils in my top fill humidifier?

A: The place where you add the essential oils all depends on your humidifier. For example, if you wish to add essential oils in your top fill humidifier, you can just put them in the water tank. When you fill it up with water, add some drops of essential oil and you should be able to enjoy the amazing aromas while the device humidifies the air.

But some models have a separate tray where you can add the oil, and it will still make sure to release nice smells into the air.

Consider the type of humidifier you have and check out the manual that comes with it if you want to make sure you add the essential oils in the right place.

Q. How do I clean and maintain a top fill humidifier properly?

A: If you want to clean a top fill humidifier, you have to detach the tank or take off the lid to reveal the inside of the tank. Look for any leftover water and get rid of it.

Then, make a mix of white vinegar and water. This should contain half water and half vinegar, and it helps get rid of mineral buildup or hard water deposits. So, pour the mixed liquid into the tank and shake the water for around 30 seconds.

Then, unscrew the filter cap and fill it with lukewarm water. Screw the filler cap and let the water sit like that for like 30 minutes. Afterward, rinse the filter cap and the tank and set them aside to dry.

Make sure to clean the base too, using the same type of mixture, pouring it inside and letting it sit for 30 minutes. Take a brush that usually comes with the product and try to clean any deposits on the surface. Then, pour the mixture down the sink and clean the remaining moisture with a soft microfiber cloth.

Q. How do I know which humidifier size will fit my room best?

A: Generally, manufacturers mention in their specifications what room size the humidifiers are suitable for. Some are good for larger rooms while others will be better for smaller ones. The tank capacity will be a good indicator too – the larger it is, the more space it can cover.

Q. Are top fill humidifiers generally messy?

A: Not necessarily – it depends on the particular product and how you handle it. Some may start leaking or water can drip out of them when you remove the tank.

Q. Where can I buy a top fill humidifier?

A: Top fill humidifiers can be found in local shops that usually sell electronics and similar devices. But your best option is the Internet because it allows you to read reviews and find the best type of unit.

Q. How much do top fill humidifiers generally cost?

A: It usually depends on many factors, such as brand, quality, features, and so on. But overall, a decent top fill humidifier will cost around $50, although you can find them for more or less than that.

Q. What are the best-rated brands for top fill humidifier?

A: Some beloved brands for top fill humidifiers include LEVOIT, GENIANI, raydrop, Homasy, and TaoTronics.

Q. Do I need a filter with my top fill humidifier?

A: It’s not necessary, but it is recommended. Water may contain bacteria or fungus so it’s important to get rid of it before it makes its way into the air. A filter will help with that, so it’s best to have filters with your top fill humidifier.

Q. Can you add more water instead of just refilling it?

A: No. Doing that could be very risky because when water sits in the unit, it may become a breeding ground for bacteria. This is why the tank has to be emptied and cleaned properly before you get to use it again. Never add more water to the existing one.

Conclusion

Finding the best top fill humidifiers is not that difficult if you know what features to consider. Hopefully, our guide was able to help and you can now find the perfect device for you.