Best Small AC for Grow Tent: 2023 Top Picks + A Comprehensive Guide

05 Jan 2023 Goods
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Small AC for Grow Room: How To Choose

When selecting the perfect small AC for your grow tent, there are several factors to consider such as size, power,  noise level, efficiency, and cost.

  • Size: Size is one of the most important factors to consider when choosing an AC for your grow tent. You need to make sure that the size you choose is suitable for your growing space so it can cool evenly without leaving parts of your grow room uncomfortably hot or cold.
  • Power: It's important to get an AC that has enough power to effectively cool your grow room. If the AC is too weak, it will not be able to properly cool the space. The size of the unit and the wattage used can help you determine how powerful a unit should be.
  • Noise Level: You also want to make sure the unit is not too loud. Look for a model that has a low decibel rating so it won't be disruptive in your grow space.
  • Efficiency: Efficiency is also an essential factor when selecting the best small AC for your grow tent. Energy-efficient models will save you money on energy bills and provide superior cooling power.
  • Cost: Lastly, consider the cost of the AC unit. Look for an affordable model that provides excellent value for money while still providing you with the necessary cooling power.

These are all important considerations when selecting a small AC unit for your grow tent. Knowing which factors to look out for can help you choose the best option for you.

Portable Air Conditioners For Grow Tent: Types To Consider

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When it comes to small AC units for your grow tent, there are three main types to consider: split system air conditioners, window-mounted air conditioners, and portable air conditioners.

  • Split System Air Conditioners - Split system air conditioners are a great option as they are very powerful and can provide efficient cooling power for any size grow tent. These units are typically more expensive, however, and will require professional installation.
  • Window-Mounted Air Conditioners - Window-mounted air conditioners are an ideal option as they do not need to be professionally installed and can be mounted in the window directly. They also come with a remote controller for added convenience.
  • Portable Air Conditioners - Portable air conditioners are the most affordable option but come with some limitations. They don't provide as much cooling power, and may require regular maintenance due to their portability.

Now that you know all the different types of small AC units available for grow tents, it's time to decide which option will be most suitable for you.

Best Air Conditioning Unit for Grow Rooms: Our Top Picks

For your convenience,  we have compiled a list of the best small AC units for grow rooms that offer excellent cooling power, efficient energy usage, and are cost-effective.

Best Overall: Arctic Air Pure Chill Evaporative Air Cooler By Ontel

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It is a suitable option for a 4 by 4 grow tent. The flexibility to move it about the tent is an added advantage of portability. To provide a nutritious atmosphere, the built-in dehumidifier can remove up to 55 pints of humidity. It qualifies as the top dehumidifier for a 4 x 4 grow tent.

Wherever you need it, the svelte, small design fits beautifully on your desk, nightstand, or coffee table. With this air cooler, you may enjoy cool air wherever you are. It helps transform hot, dry air into cool, revitalizing air.

Through the use of an evaporative air conditioning filter, Hydro Chill Technology draws in heated air and quickly transforms it into cold, pleasant air. This air cooler is ideal for use overnight for a peaceful night's sleep thanks to the whisper-quiet fan and calming night light.

Despite the fact that the device features a noise reduction feature, some customers have complained about the loudness.


  • Portable.
  • Quiet fan.
  • Hydro Chill Technology.
  • Built-in dehumidifier.


  • Loud at times.

Efficient Option: SereneLife SLPAC10 Portable Air Conditioner

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The little floor AC indoor cooler conditioning unit includes three modes—cooling, dehumidifier, and fan—and an easy electric plug-in operation. Additionally has an automated swing mode with a sliding wind vent for optimal airflow.

contains a digital touch button control panel with options for the fan speed, temperature, timer, mode, and power. The remote control that comes with the device may be used to alter other features including the unit selector (°C/°F), sleep key, and more.

The SereneLife Portable Air Conditioner System is a slim, lightweight body that may be utilized in the garage, living room, or other rooms at home or at the workplace.

A nutritious atmosphere is created by sucking up to 64 pints of humidity with the built-in dehumidifier. The grow tent's exhaust pipe, however, has a significant impact on humidity regulation.

The finest dehumidifier for a 5 x 9 grow tent is what we may call it.


  • Three modes — cooling, dehumidifier, and fan.
  • Digital touch button control panel.
  • Remote-controlled.
  • Portable design.
  • Built-in dehumidifier.


  • Exhaust may have an impact on humidity regulation.

Budget Option: TOPPIN HEPA Air Purifiers with UV Light

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Small (6.3*6.3*9.3 in), light (3.2 lb), and strong, it covers a large area for purification (up to 160sq.ft). A HEPA air purifier emits barely 23dB of noise when it is running slowly.

The nano-silver coating and carbon layer of the True HEPA Filter reduce and absorb smoke and odors while the UV light and blue net maintain clean air around you. 0.3-micron airborne pollutants are removed by HEPA Air Purifiers for Home with UV Light & 4 in 1 Nano-Silver Coating Filter.

It is simple to take the filter out of the machine and clean it. It's important to remember that you need to buy a new filter every three months.


  • Small, light, and powerful.
  • Wide purifying area covered (up to 160 sq.ft.). 
  • Low noise level (23db). 
  • Easy to remove and wash filter. 
  • True HEPA Filter.


  • Replacement filters must be purchased every three months.

Premium With Heater: Whynter ARC-14SH 14,000 BTU Dual Hose Portable Air Conditioner 

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With a cooling area of 500 square feet and 4 operating modes (air conditioner, fan, dehumidifier, or heat), the portable AC air conditioner also has a heater and a dehumidifier.

Sometimes a sly glance alters the notion. Your buddies come to check out your grass and the air conditioner in your grow tent that looks like a dam! In most settings, the dual-hose portable air conditioners for rooms entirely exhaust all condensates and have a 71-pint daily dehumidifying capacity.

A window kit, remote control, activated carbon air filter, washable pre-filter, user guide, and portable air conditioner are included.


  • Cooling area of 500 square feet.
  • 4 Operating modes (air conditioner, fan, dehumidifier, or heat).
  • Dual-hose portable air conditioners.
  • 71-pint daily dehumidifying capacity.
  • Window kit included.


  • Pricier than other options.
  • Noisy compared to other options.

Extremely Versatile: Vremi 8,150 BTU Portable Air Conditioner

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This appliance performs effectively in spaces that are between 300 and 350 square feet. This air conditioner cools rooms at temperatures between 64 and 90°F (18 and 32°C) and has a 24-hour timer option for the optimal air flow.

The greatest flexibility is provided by its Cool, Fan, Dry, and Sleep modes. The device has a horizontal exhaust vent that is like a regular window. It may be quickly put in any room that has a window that is horizontally accessible.

We have a problem with the product's weight, but if you're sure you can fit it inside the tent, it's OK. Because of the product's timed settings, you often have the opportunity to change the temperature. The hose works great for a 48 grow tent or a 99 grow tent, despite the fact that some purchasers are concerned about its length.


  • 24-hour timed setting.
  • Swing mode for the best air flow.
  • Cool, Fan, Dry, and Sleep modes.
  • Easy to install in a horizontally accessible window.
  • Timed settings for temperature adjustment.


  • Heavy compared to other options.

Advanced Features: Upstreman UAK06C Advanced Portable Air Conditioner

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The cold air may cover a space that is up to 250+ square feet with its 980W rated power and 10000 BTU (ASHRAE)/6000 BTU (DOE) cooling power. 196 inches is the air supply distance. You can feel comfortable in any posture because to the wider spectrum of cooling.

With a 10000 BTU capacity, this powerful AC provides you with a comfortable chill (ASHRAE). You may choose the most comfortable temperature using the cooling power, which is programmable between 60.8 and 86°F. If all you want is some fresh air, a powerful fan will do.

Choose from the cooling, fan, dehumidifier, 24-hour timer, and auto swing modes. Your demands may be met and the space can be cooled by a 3-speed fan. Automatic window swinging may improve airflow, and keep your space dry and cool.

The portable AC has caster wheels and provides excellent mobility. This portable AC may be moved anywhere you need it.


  • 980W rated power and 10000 BTU (ASHRAE)/6000 BTU (DOE) cooling power.
  • Adjustable temperature between 60.8 and 86°F.
  • Cooling, fan, dehumidifier, 24-hour timer, and auto swing modes.
  • Automatic window swinging improves airflow.
  • Portable AC has caster wheels and provides excellent mobility.


  • Noisy compared to other options.
  • Smaller cooling area than other options.

Best Wall Mount System: Pioneer Air Conditioner WYS009A-19 Wall Mount

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This is usual in medium-sized to large grow rooms. Some individuals even use this in their houses since it is often silent and easy to install. To save money all year long, choose a ductless micro split inverter+ heat pump system.

The free technical support and the five-year parts and compressor guarantee are also significant advantages. Use for cooling and heating at 9000 BTU/hour with a 19 SEER and 10 HSPF efficiency.

It just has one indoor unit, a WYS009AMFI19RL Wall Mount Mini Split Inverter+ Heat Pump. To guarantee a strong but silent functioning, the most latest technology is applied. From any location in the room, you can use the wired remote to have complete control over the temperature and fan speed in your area.


  • Quiet and simple to install.
  • Free technical assistance and a 5-year parts and compressor warranty.
  • 9000 BTU/hour with 19 SEER and 10 HSPF efficiency for both cooling and heating.
  • Wired remote for total control over your space's temperature and fan speed from any corner of the room.
  • Expensive compared to other options.
  • Requires professional installation.
  • Not very portable as it is a wall-mounted system.

Best Small AC for Grow Tent: Our Conclusions

When choosing a  small AC for a grow tent, it is important to consider the size of the space you need to cool, as well as your budget. If you are looking for something that is small and portable, consider a window unit or mini-split system.

For larger spaces, a wall mounted AC may be the better option. It is also important to make sure that the system you choose is powerful enough to cool your space, as larger systems tend to be more efficient and quieter.

No matter what type of AC you choose, it is important to make sure that it has all the features you need to keep your grow tent regulated at the optimal temperature for your plants.

The Upstreman U-AC120 is a great option for smaller spaces, as its 980W rated power and 10000 BTU cooling capacity allows it to cover up to 250+ square feet.

The Pioneer Air Conditioner WYS009A-19 Wall Mount provides excellent air conditioning and heating in medium-sized to big grow rooms with its 9000 BTU/hour with 19 SEER and 10 HSPF efficiency for both cooling and heating.

Our #1 choice is Arctic Air Pure Chill Evaporative Air Cooler By Ontel. This AC is easy to use and requires no installation or special setup. It has a powerful blower fan that is capable of cooling up to 250 sq ft of space effectively, making it perfect for small grow tents. The cooler also offers an adjustable temperature between 60.8 and 86°F, so you can maintain the ideal environment for your plants.

We hope this helps you make an informed decision when choosing the best small AC for your grow tent! Happy Growing!

Erica Hendricson

Erica Hendricson is a true tech enthusiast! With a New Hampshire origin and a strong technical background, she loves sorting things out.

Let her guide you to the correct shelf in picking the perfect devices and gadgets for you.