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Portable Air Conditioner FAQs

Ambient temperatures tend to increase abnormally in confined spaces. That’s why staying cool and comfortable should be your priority. People who work in factories and warehouses often complain about poor ventilation. So, to get your team out of this situation, get them the appropriate portable air conditioner.

If you’re thinking about getting a portable air conditioner, you’re bound to have lots of questions. You may be wondering which one to choose, what size will best meet your needs, and so on. It can be hard to find the answers you need, which is why our MRO experts have put together a list of the top 10 frequently asked questions about portable air conditioners. With these questions answered, you’ll be able to make an informed decision about whether a portable air conditioner is a right choice for your workplace.

Table of Contents

  1. What is a Portable Air Conditioner?
  2. How Do Portable Air Conditioners Work Without a Window?
  3. What Are the Benefits of Portable Air Conditioners?
  4. How Do I Choose the Right Size Portable Air Conditioner?
  5. Can I Use a Portable Air Conditioner as a Primary Cooling Solution?
  6. Do Portable AC Units Require Ventilation?
  7. Can I Use a Portable Air Conditioner in a Garage or Workshop?
  8. Are Portable Air Conditioners Noisy?
  9. Can I Use a Portable Air Conditioner in Humid Conditions?
  10. Are There Any Safety Precautions I Should Follow When Using HVAC Systems?

What is a Portable Air Conditioner?

Portable air conditioners (PAC) are self-contained portable systems ideal for cooling single rooms. They sit on the floor and come with an installation kit for quick set-up. Most models also have wheels so you can move them to different roomsPortable air conditioners are an effective replacement for window AC units.

They are a great option for those who do not want to install a bulky window unit or do not have a suitable window for installation. These portable units are easy to use, operate quietly and can be moved from room to room with ease. They are available in various sizes and cooling capacities to suit various room sizes and cooling needs.

How Do Portable Air Conditioners Work Without a Window?

Portable air conditioners extract heat from a room and expel it outside through a flexible hose or exhaust duct. While most portable AC units use a window kit, which allows for the proper ventilation of hot air, some PAC models come with alternative exhaust options.

One common alternative is a venting kit that can be installed in a sliding glass door or through a wall. This kit allows the hot air to be vented outside while the cool air is circulated within the room.

Another option is a self-evaporative system. In this system, the unit recycles and evaporates most of the condensate produced during the cooling process. It reduces the need for continuous drainage. It also eliminates the need for an external vent. However, these units may still require occasional drainage of excess water.

What Are the Benefits of Portable Air Conditioners?

Portable air conditioners offer several advantages over their counterparts, including:


One of the primary advantages of portable air conditioners is their mobility. Unlike window or central air conditioning units, portable AC units can be easily moved from room to room. They allow your employees to enjoy cooling comfort in multiple rooms or areas within the office. People can simply wheel the unit to the desired location and enjoy instant relief from the heat.

Easy Installation

If you’re looking for an air conditioning unit that’s easy to install, portable ACs are the perfect solution. They require minimal effort to set up and can be up and running in no time. All you need is a power outlet and a vent for exhaust, and you’re good to go.

Cost Effective

Portable air conditioners are less efficient than traditional window units in terms of cooling power. But, there’s a catch! Since you can move them from one room to another, you don’t need to buy separate AC units for any room. This means that you can save money on both purchasing and installing new AC units for each room. So, while portable AC units may not be as powerful as window units, they can still be a cost-effective solution for cooling multiple rooms in your workplace.

How Do I Choose the Right Size Portable Air Conditioner?

Selecting the correct size portable air conditioner is important when it comes to optimal performance and energy efficiency. However, no hard-and-fast rule requires you to purchase a specific AC unit to ventilate your workspace. All you need to do is calculate your ventilation requirements in BTUs (British thermal units).

Consider factors such as room size, ceiling height, insulation and heat-generating appliances. In general, larger rooms require higher BTU ratings, while smaller spaces can suffice with lower BTU units. An undersized unit may struggle to cool the room. An oversized unit, on the other hand, may result in excess energy consumption and inefficiency. That’s why it’s important to choose an AC unit that provides just the right amount of cooling for your workspace.

So, take your time to calculate the correct BTU rating. By doing so, you can make an informed choice when selecting an air conditioning unit for your workplace. This will not only help you maintain a comfortable working environment but also ensure that you save money on energy costs in the long run.

Can I Use a Portable Air Conditioner as a Primary Cooling Solution?

Portable air conditioners are a great way to provide additional cooling to a small space or room. They pull warm air from the environment and blow it over cold coils, which then cool the air and blow it back into the room. However, it’s important to note that PACs are used in conjunction with an existing HVAC system. They should not be used as a primary cooling solution for larger workspaces. This is because PACs have a limited cooling capacity and are best suited for cooling small spaces or rooms.

So, if you need comprehensive cooling coverage for a larger workspace, then go for central air conditioning systems or ductless mini-split systems. These systems can cool entire buildings or large areas. They are more efficient and effective than portable air conditioners. So, if you’re looking for a supplemental cooling option for a small space, a portable air conditioner may be a great choice. But for larger spaces or comprehensive cooling coverage, consider a central air conditioning system.

Do Portable AC Units Require Ventilation?

If you’re using a portable air conditioner, it’s important to make sure that it is properly ventilated. The hot air produced by the air conditioner needs to be vented outside. By doing so, these AC units maintain a comfortable temperature indoors.

Most efficient portable air conditioners come with a window kit or exhaust hose. They allow easy venting through a window, sliding door or vent opening. Also, make sure to install them securely and airtight. This will prevent hot air from coming back into the room. This will, in turn, ensure that your air conditioner runs efficiently and keeps you cool and comfortable.

Can I Use a Portable Air Conditioner in a Garage or Workshop?

Portable air conditioners are ideal for garages, workshops and other non-traditional spaces to provide temporary cooling comfort. From DIY projects in the garage to creative endeavours in workshops, these portable ACs ensure that your comfort knows no bounds. So, beat the heat wherever your endeavours take you because cool vibes are not just for traditional spaces anymore.

Are Portable Air Conditioners Noisy?

It’s important to note that while portable air conditioners do make some noise during operation, there are now advancements in technology that have led to the development of ultra-quiet portable AC units on the market. These advanced PAC models produce less than 60 decibels of sound. This is a significant improvement compared to older models. With quieter portable AC units, users can now enjoy cool and comfortable air without being disturbed by loud and obnoxious noise.

MovinCool Climate Pro K12 Portable Air Conditioner

  • Produces maximum sound level 59 dB(A) at highest speed with condenser duct, similar to sound levels from an electric toothbrush.
  • Provides effective cooling in conditions ranging from 65° to 95°F.
  • Programmable electronics for automatic operation after hours and on weekends.
  • Wireless connectivity-ready for remote monitoring and e-notifications of performance.
  • Avoid downtime due to overheated electronics and keep employees comfortable and productive.

Can I Use a Portable Air Conditioner in Humid Conditions?

It depends. If your AC unit has a built-in dehumidification function, then you can use your AC in humid conditions. They can help remove excess moisture from the air.

On the other hand, an air conditioner without a humidification function can raise the temperature of a room. It will directly heat the air. As a result, they will lower the humidity, which can cause drying.

High humidity levels can make indoor spaces feel warmer and more uncomfortable, even if the temperature is relatively low. By reducing humidity levels, portable ACs not only enhance comfort but also inhibit the growth of mould, mildew and other allergens. Some manufacturers even offer standalone dehumidifiers. They are suitable if your requirements are limited to dehumidification.

Fantech EPD250CR Restoration Portable Dehumidifier

  • 300 CFM blower effectively moves humid air through the system.
  • Twin 5-inch rear vents allow warm air to be vented out or used in drying the area.
  • 30-foot drain hose with quick connect & onboard storage wrap and integral cradles for stable stacking.
  • 11-inch wheels & integrated handles to allow easy mobility from site to site.
  • Rugged Rotomolded cabinet to withstand rigorous operation.

Are There Any Safety Precautions I Should Follow When Using HVAC Systems?

Portable air conditioners are generally safe to use when operated correctly. However, it is essential to observe some safety precautions to prevent accidents or hazards.

  • First, avoid overloading electrical circuits by plugging the unit into a dedicated outlet.
  • Keep the unit and its components away from water sources to prevent electrical shock.
  • Moreover, regularly inspect the exhaust hose and vent for signs of damage or obstructions.
  • Use the portable AC unit on stable, level surfaces to prevent tipping or instability.
  • Lastly, keep flammable materials away from the unit to reduce the risk of fire hazards.

As temperatures continue to rise, staying cool and comfortable becomes a top priority for many. With their convenience, efficiency and versatility, portable air conditioners offer a practical solution to beat the heat wherever you go. So, whether you’re lounging in your office room or working hard in a warehouse, you’ll not regret getting a portable AC unit.
Choose from a wide range of portable air conditioners at Raptor Supplies. We are a global MRO supplier with an extensive catalogue of over 2 million products to choose from. You can get in touch with our 24×7 chat support or reach out to us via phone, WhatsApp or email at any time. Also, feel free to check out our dedicated review page to see what our valued customers have to say about our service.