5 Best Humidifier for 4×4 Grow Tent & Grow Room in 2023

The humidity level inside your grow tent can be the primary determinant of healthy plants or wasted harvest. You should be able to maintain the humidity to the optimal level efficiently. So, you need an efficient humidifier that matches your requirements and fits your budget.

We picked some of the top models available to help you choose the best humidifier for 4×4 grow tent. Stripping their features down to the smallest will allow you to pick the right one for your needs easily.

Alongside this, the buying guide will focus on factors you need to consider. Let’s get started.

5 Best Humidifiers for 4×4 Grow Tents

We judged these humidifiers based on specific factors so that you get a clear idea of their performances. Take a closer look at the following 5 best humidifiers for your 4×4 to grow tents.

  1. LEVOIT 300S 6L Ultrasonic Smart Humidifier
  2. VIVOSUN Cool Mist Ultrasonic Humidifier
  3. Everlasting Comfort Ultrasonic Cool Mist Humidifier
  4. LEVOIT LV600S Cool Mist Ultrasonic Humidifier
  5. Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

1. LEVOIT 300S 6L Ultrasonic Smart Humidifier

LEVOIT Humidifiers for Bedroom Large Room Home

Levoit 6L ultrasonic smart humidifier could be your best choice for 4×4 grow tents. Its several cool features, like smart controlling with app and voice, bigger water capacity, etc., make it one of the best.

Let’s see the different features that make it one of the top choices for 4×4 grow tents.

Dimensions and Coverage: The humidifier has a dimension of 9.6 x 7.5 x 13.4 inches and weighs only 4.3 pounds. So, it will be a compact humidifier for your grow rooms. And it is portable due to its lightweight design. It has a maximum effective range of 505 sq. feet, which is way higher than you require in a 4×4 grow tent.

Water Tank Capacity and Runtime: As the runtime of a humidifier depends on the water tank capacity, it should be big enough to reduce refill frequency. With this humidifier, you get a 6-liter water tank, which allows the device to run for up to 60 hours.

Though the runtime is slightly lower than the claim, you only need to refill the tank after two days.

Humidity Controls: The humidifier can provide up to four times faster humidification than its competitors. You have a small display and four buttons on the front to control the humidity levels.

But you can do it more easily using the VeSync app. It also lets you schedule humidity levels if you aren’t present at home.

Operation Type and Noise: As this is an ultrasonic humidifier, it has a very quiet operation. To be exact, the noise level will be under 30 dB, so it is very convenient. It also has Zero Light Pollution to help your plants have the most optimal condition for growth.

Refilling and Cleaning: The humidifier has a top-fill design, so refilling the tank will be easy and reliable. Cleaning the humidifier is also easy, and it comes with a cleaning brush.

Final Verdict

With a large water tank for longer runtime and compact dimensions for easy portability, this can be the best humidifier for grow tent. The area coverage is excellent, and you have smart controls to maintain the humidity level. So, this will be a worthy purchase for 4×4 grow tent harvesters.

Pros

  • Long operational hours
  • The water tank is large enough
  • 360-degree rotating nozzle for efficient humidification
  • Automatically turns off if the tank is empty
  • Made of BPA-free material

Cons

  • The display sometimes shows a faulty water level
  • The power adapter isn’t long enough

2. VIVOSUN Cool Mist Ultrasonic Humidifier

VIVOSUN Cool Mist Humidifier

The Vicosun Cool Mist is another great choice for 4×4 grow tents. It is powered by several features that make it one of the best grow room humidifiers. Let’s discuss its distinctive key points.

Dimensions and Coverage: The dimensions of this humidifier are 9.5 x 9.5 x 15.4 inches, and it weighs about 5.5 pounds. So, you can clearly see that it is slightly larger and heavier than the previous one we discussed.

And it has an area coverage of approximately 430 sq feet, which will be good enough for your 4×4 grow tents.

Water Tank Capacity and Runtime: Though it has a water tank capacity of 6 liters, it runs for only eight hours on a full tank. So, you need to refill the water tank frequently. But it has four timer functions to control the runtime.

Humidity Controls: The humidifier has 5 different output levels to control the humidity level efficiently. You can do it with the humidifier’s buttons or the remote control. The display in front shows the necessary parameters.

From auto shut-off to delay start, the device has got smart features to make the operation easier.

Operation Type and Noise: It is also an ultrasonic humidifier, so the operating noise is expected to be low. But it tends to be slightly noisier than the previous humidifier. It produces about 35 dB, which shouldn’t be inside the grow tents or surrounding rooms.

Refilling and Cleaning: The large opening of the tank makes it easier to refill the tank. Cleaning the tank is also easy, so you can maintain a germ-free ambiance. But it doesn’t come with a cleaning brush, so you need to buy that separately.

Final Verdict

It can be the best humidifier with five mist options when you need more output options to control the humidity conveniently. The water tank is large, and the nozzle rotates 360 degrees to provide mist in all directions. If you don’t mind the extra weight and want the convenience of remote control, it is for you.

Pros

  • Large water tank
  • Ample buttons for various controls with a digital display
  • Remote control for hassle-free operation
  • Five different output levels for efficient humidification
  • Water level indicator

Cons

  • Runtime is very low
  • It is less portable than other humidifiers

3. Everlasting Comfort Ultrasonic Cool Mist Humidifier

50-Hour Ultrasonic Cool Mist Humidifiers for Bedroom

If you want a long runtime and larger tank capacity, this could be a great choice. Let’s break down its particular feature separately.

Dimensions and Coverage: Its dimension is 11.02 x 6.69 x 13.02 inches, and it weighs only 3.1 pounds. So, this lightweight humidifier will be highly portable and convenient. It covers an area of about 500 sq feet, which should be more than enough for your 4×4 grow tent.

Water Tank Capacity and Runtime: The capacity of its water tank is 6 liters, just like the previous humidifiers. As the mist output can be as low as 120 ml/hr, it is expected to run up to 50 hours.

Though it deviated downward from the expectation, the runtime is good enough compared to most humidifiers out there.

Humidity Controls: The controls are very minimal on this humidifier. You have just one knob to turn on/off the device and control the mist output. Unlike the previous ones, it has no app or remote control option. But as the controls are straightforward, they should be convenient to use for older users.

Operation Type and Noise: This ultrasonic humidifier works quietly and produces a maximum of 35 dB of noise at max settings. So, it shouldn’t disturb the ambiance when you have the grow tent in adjacent rooms.

Refilling and Cleaning: As you need less refilling, the humidifier is much easier to use. The top-fill design has drain holes on the side to clean the water tank. The base can also be easily cleaned with mild soap and warm water.

Final Verdict

Besides the large area coverage, the humidifier has a longer runtime. You also have the option to control mist intensity for optimal output. It has dual nozzles that rotate 360 degrees. So, it can be very handy in grow tent temperature and humidity control.

Pros

  • Excellent area coverage
  • Varying mist intensity is suitable for different plants
  • Compact dimensions to fit in tight spaces
  • Auto shut-off and quiet operation
  • No hassle of cleaning filters

Cons

  • No water level window
  • No smart controls

4. LEVOIT LV600S Cool Mist Ultrasonic Humidifier

LEVOIT LV600S Humidifiers for Bedroom Large Room

This one has a more boxy appearance. Also, smart control like app and voice is the key point to consider among the top 4×4 grow room humidifiers. Let’s explore its features.

Dimensions and Coverage: The humidifier’s dimension is 7.7 x 11.6 x 11.3 inches, weighing about 6 pounds. It has a whopping coverage area of about 753 sq feet, which we think is overkill for 4×4 grow tents. Also, you can use it in 10×10 grow tents.

But you have the scope to use it in bigger rooms too. And it can deliver maximum moisture of 550 ml/hr.

Water Tank Capacity and Runtime: Like the previous 300S humidifier from LEVOIT, this has a six-liter water tank. With a full tank, it can run for up to 50 hours. So you don’t need to worry about refilling the water tank frequently.

Humidity Controls: The controls are organized in a wide area with a digital display. So you can easily set the timer or moisture levels. Plus, you can use the app to control the functionalities remotely. So, your plants won’t dry out even if you are away from home.

Operation Type and Noise: This ultrasonic humidifier can deliver cool and warm mist, so you can choose between options as required. When in the cool mist mode, it produces about 28 dB, which is by far the quietest.

Refilling and Cleaning: The opening on the water tank is also the biggest of all humidifiers you have seen until now. So, refilling the tank is a breeze. Cleaning the tank is also extremely easy, thanks to the cleaning brush included with it.

Final Verdict

It delivers moisture at a higher rate than other humidifiers. You can use the app or voice control to adjust settings and turn the device on or off. And it has a very compact design.

Pros

  • Automatic turn-on/off sensors
  • The large coverage area of 753 sq feet
  • Smart controls via app and voice
  • High mist delivery rate for faster humidification
  • Zero-leakage design for less hassle

Cons

  • Too big for 4×4 grow tents
  • It is pretty heavy

5. Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

Last but not least, the Pure Enrichment MistAire Ultrasonic is a great choice for 4×4 grow tents. Its distinctive features ensure top-notch performance for a longer time. Especially the 1.5l tank capacity lasts for 25 hours, outperforming any of its counterparts in terms of runtime.

Let’s explore its features.

Dimensions and Coverage: Its dimensions are 8 x 6 x 9 inches, and its weight is only 1.35 pounds. So, this cute little humidifier is highly portable. And it has an area coverage of about 250 sq feet, which is excellent for 4×4 grow tents.

Water Tank Capacity and Runtime: You get a small 1.5-liter water tank in this humidifier. But it runs for a proportionately higher period compared to those large humidifiers you have seen. It will run for about 25 hours, meaning you only need to refill the tank once a day.

Humidity Controls: There are only two mist settings in this humidifier. And unfortunately, you don’t have many control options here.

It only has a power button at the front, and you can’t control the functions through an app or remote. So, you must be present at home to operate the humidifier.

Operation Type and Noise: As it is an ultrasonic humidifier, it will run quietly. The noise level is under 40 dB, which is still higher than other humidifiers. But it won’t create any disturbance outside the grow tent.

Refilling and Cleaning: This humidifier has a bottom-fill tank design. So, you must remove the tank from the base and fill it with water. The opening isn’t big, but you can probably use your kitchen tap to refill the tank. Cleaning the tank can also be an issue due to the small opening.

Final Verdict

Though the water tank capacity is only 1.5 liters, it runs for up to 25 hours. And it is very compact to fit inside your 4×4 grow tents easily. You can switch between mist temperatures, and the water level is easily visible. This can be a good purchase if you want something compact, portable, and efficient at the lowest price point.

Pros

  • Ultra-compact design is suitable for grow tents
  • Decent area coverage
  • Cool and warm mist options
  • 360-degree rotating nozzle
  • Auto shut-off when the tank is empty

Cons

  • No smart controls
  • The water tank is tiny

What Is Humidity? Especially In Grow Tent?

What Is Humidity

Humidity is the amount of water vapor present in the air. It is usually expressed in percentages. For example, 60% humidity inside a grow tent means the air is filled with 60% water of its total capacity. Maintaining the optimal humidity level in a grow tent is crucial.

This is because mold attacks can happen if the humidity in a grow tent is higher than necessary. Buds or flowers can start rotting due to high humidity. And if the humidity is lower than necessary, your plants will suffer from nutrient deficiency.

How to Control Temperature and Humidity In Grow Tent?

Plants in a grow tent require different humidity levels at different life cycle stages. For example, the required humidity at the seedling stage is 70-75%, whereas at the flowering stage is 40-50%.

As the temperature increase affects the humidity level, you need to control both parameters efficiently.

Properly insulating and ventilating the grow tent is required for temperature control. You need to use-

Grow tent humidifier and dehumidifier are used to control the moisture level. If the air in a grow tent is too dry, you can use a humidifier to increase moisture. But if there is too much moisture inside, you need to use dehumidifiers to draw the moisture out.

Types of Humidifiers: What Type of Humidifier Is Best for Growing Tents

Humidifiers are of two types in terms of mist.

  • Cool mist
  • Warm mist

There isn’t much of a difference between these two types, and you can use both for grow tents.

Depending on the technology, humidifiers are of four types.

  • Evaporative
  • Impeller
  • Ultrasonic
  • Vaporizer

The last one vaporizes water to create a warm mist, and you might run the risk of fire hazards in this case. Impeller humidifiers are pretty noisy. Ultrasonic humidifiers are by far the best option for grow tents.

Though they are a bit more expensive, they run quietly, and there is no vaporization. They can also deliver both types of mist, depending on the model. These humidifiers are also equipped with more modern features. So, you can definitely choose ultrasonic humidifiers for grow tents.

Buying Guide of the Best Humidifier

This buying guide consists of the necessary factors to consider before choosing a humidifier for your grow tent. Keep them noted.

Area Coverage: What is the required area coverage for 4×4 grow tents?

4×4 grow tents are not that big. A medium-sized humidifier with an area coverage of 100-200 sq feet should be enough.

If you want to go higher than that, choosing a humidifier with a maximum area coverage of 300-500 sq feet is okay. But anything more than that is overkill. So, you should plan wisely.

Mist Capacity: What mist capacity should I choose?

It denotes the amount of moisture sprayed into the air per hour. Most humidifiers have a maximum mist delivery of 300 ml/hr. The higher the mist capacity, the shorter will be the runtime.

And you should choose humidifiers that have options for low mist delivery to extend the runtime.

Water Tank Capacity: What tank capacity is ideal for humidifiers?

The capacity of the water tank is another big indicator of the runtime. If the tank is larger than 5 liters, you need to refill the tank less frequently. But if you take small humidifiers with a tank size of one or two liters, you need to refill the tank at least once a day.

Runtime: How long should a 4×4 grow tent humidifier run?

It depends on the previous two factors combined. A bigger tank will ensure the humidifier runs for up to 60 hours. But if you have the mist delivery at the highest setting, the runtime will be decreased.

So, you should find a humidifier that runs long, even in the highest setting.

Operation Type: Which operation type is the best?

As we have already stated, humidifiers come in four types. Among them, ultrasonic humidifiers are more efficient than other types. Though they cost a bit more, they are also less noisy than impeller humidifiers or evaporators. Going with ultrasonic humidifiers will ensure hassle-free operation for years.

Controls and Features: What controlling type is reliable?

Modern humidifiers mostly have a digital display with touch-sensitive buttons to control the functionalities. But it will be better to have humidifiers with remote control or mobile apps.

Especially if the device has a mobile app, you can monitor and control the functionalities remotely.

Ease of Use and Cleaning: What determines the ease of use and cleanliness?

Refilling the water tank should be straightforward, with a big opening. The humidifier should also be easy to clean so that you can do it frequently.

Otherwise, microorganisms can grow inside the tank and get sprayed into the air. It will do more harm than good. So, you must focus on the user experience before buying a humidifier.

FAQs

Here are answers to some frequently asked questions. Check them out.

Q: Should I put a humidifier in my grow tent?

A: If your area’s climate is moderate, your grow tents might not require any humidifier. Use them only if the air is too dry.

Q: Where to put the humidifier in grow tent?

A: Putting humidifiers directly next to the plants isn’t a good idea. You should keep a distance of at least 3 ft between the humidifier and the plants.

Q: Where should you not put a humidifier?

A: Don’t put the humidifier against the wall. Or, don’t put it so high that it is close to the ceiling. Leave some room around for the mist to spread.

Q: Is a cool mist or warm mist humidifier better for plants?

A: There isn’t any critical difference between these two types of mist. So, you can use whatever type you want.

Q: Should you run your humidifier all day?

A: No, run it only when necessary. You can run it on average for 4-5 hours per day, especially in the morning and afternoon, when the plants absorb moisture.

Q: How much humidity should be in a grow tent?

A: It will depend on the necessity of the plants. The seedling stage usually requires 70-75% humidity, whereas the flowering stage requires only 40-50%.

Conclusion

The right humidity level inside your grow tent ensures the plants will thrive. And if you don’t maintain the optimal humid condition, the harvest will never be as desired. A good humidifier can maintain the humidity level according to the needs of plants efficiently.

We reviewed some of the most popular humidifiers to help you choose the best humidifier for 4×4 grow tent. The informative buying guide should give you a comprehensive idea of how to choose the right humidifier. Narrow your list down and get the best humidifier at home with some proper homework.

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