ual hose conditioners are a great choice for those that want to be provided with cool air fast. This configuration will use one hose to draw the hot air from the room and the second hose to exhaust it. This means that the air doesn’t get recycled and you will be provided with cold, fresh, and clean air on a hot summer’s day.
Similarly to Small Portable Air Conditioners, you don’t have to invest in another appliance as they are a year-round unit due to their multiple operating modes. Thus, even though you will be making an investment at the beginning, you will receive all of your money back in due time.
This model has been designed with a 9000 BTUs capacity and it can cover a room of up to 250 sq. ft. In addition to this, the self-evaporative system means that you don’t have to worry about thorough maintenance. The excessive moisture will be removed by the unit while improving air circulation in poorly ventilated areas.
During the cooling process, the water is extracted from the air into the unit. Some of the water is recycled and used for the cooling coils to produce cool air. Hence, ensuring an energy-efficient operation. In case there’s too much moisture in the air, it will collect water in the built-in tank. It’s design features are:
Operating Modes – Choose between Cool, Dehumidifier, and Fan mode to create optimal living conditions
Louvers – The auto-swing louvers will automatically oscillate to provide cool air from corner to corner
Timer – Set the AC up to 24-hrs in advance to make it cool on your terms
This portable design will allow an even cool wherever it’s placed. Due to this, you will be able to move it with ease even if you have limited mobility. As well as, you can also move it to poorly ventilated spaces.
Features To Consider
Capacity – 64 – 176 CFM
Noise – (High/Low): 50.1 / 47.8
Installation Accessories Included
You will find it straightforward to installation it as all of the accessories are included at no extra price. This includes the plastic slider kit. Hence, you don’t have to worry about getting the help of a professional. Its features are:
Energy-efficient – This unit has an energy efficiency ratio of 9.21 EER
Dehumidifier – The unit will remove up to 47 pints of moisture per day
Speeds – Choose between the 3 operating speeds
Consider this product with confidence as you will be covered by a 1-year warranty period against damages due to the workmanship. In case the unit damages, the company will cover the repair costs or exchange it with a new unit.
11. EdgeStar AP8000W – Budget Pick
Cooling capacity: 8,000 BTUs
Room coverage: 250 sq. ft.
Speed settings: 3
Air circulation: 123 CFM
Operating modes: AC, dehumidifier, fan-only
Energy efficiency ratio: 9.5
Moisture removal: 50 pints/day
Noise level: 53 dB
Dimensions: 13.2″ x 19.2″ x 23.8″
Weight: 56 pounds
Warranty: 1 year
This 8,000 BTUs AC has the ability to cool down a room up to 250 sq. ft. As it’s portable and compact, you will be able to place it in different living spaces without hurting your back in the process. In fact, it also has rolling casters so you can move it around even if you have limited mobility. Perhaps, you may know that it’s much more cost-effective to have a portable AC as it’s an efficient way to cool down hot spots in the home. With a mounted AC, you will see an increase in your energy bill payment.
CFC-free and RoHS Compliant
You will be able to use the AC throughout the day even if you’re not at home as it only draws 840 watts. Therefore, if you keep it running constantly, the energy bill will only increase by 90¢ a day. In addition to this, it has been independently tested to prove its efficiency and safety. Thus, it has passed the strict US regulations imposed on appliances. Some of its design features are:
Self-evaporative System – There’s no need to manually drain the unit as the automatic drain system is able to exhaust all liquid
Speeds – Choose your comfort level between the 3 integrated speeds
Automatic Restart – If you’ve experienced a power failure, the AC will automatically restart on the previous settings when the power comes back on
Timer – Set the AC whenever you need it to work the most as it has been designed with a 24-hour timer
Cubic Feet per Minute – 100 cu ft. on the lowest speed and 123 cu. ft. on the highest
The unit will also remove any moisture in the air so you can breathe fresh and clean air at all times. Additionally, as the excess humidity is removed, it will limit the possibility for mold to form and to grow.
If you’re on a budget you should know that this AC comes with everything that you need. Hence, inside the package you will find:
Window Kit – If you want to mount the exhaust hose through the window, you will find all of the materials that you will need. Bear in mind that the window should measure 29” minimum and 38” maximum
49” expandable exhaust hose
As this unit is portable, many customers have chosen to take it for camping. Place the exhaust hose through the screen window and enjoy the wonders of the outdoors without experiencing unbearable heat inside of your tent.
10. Whynter ARC-110WD – Best for Temperature Control
Cooling capacity: 11,000 BTUs
Room coverage: 350 sq. ft.
Speed settings: 4
Air circulation: 177 CFM
Operating modes: AC, dry, fan-only
Energy efficiency ratio: 9.5
Moisture removal: 81 pints/day
Noise level: 56 dB
Dimensions: 17.3” x 15.4” x 30.5”
Weight: 65 pounds
Warranty: 1 year full, 3 years for the compressor
Even though it’s compact, it has been designed with a dual-hose system to facilitate efficient cooling. Crafted with a capacity of 11,000 BTUs, this unit will cool-down a room of up to 350 sq. ft. Hence, it’s suitable for home use and light commercial use. In addition to this, it has been certified as CFC-free refrigerant as it doesn’t produce traces of ozone. It’s also RoHS-compliant. Thus, it’s not only safe but also efficient.
Multiple Operating Modes
To provide you with the most for your money, you can take advantage of the 4 integrated modes. In addition to this, it also has convenience features such as an adjustable digital thermostat control. Adjust the temperature from 61° – 89°F. Regardless, its operating modes are:
Dehumidifier – It will remove up to 81-pints of moisture per day
Auto – The temperature will adjust itself according to the conditions in the room
AC – The hot and stale will be exhausted and fresh air will be brought in from the outside
Fan – Bring down the temperatures fast as it will circulate the indoor air
In comparison, with the other models in its price range, this model has an upper and lower direct drain ability. This will ensure continuous operation without the condensation accumulating.
As mentioned above, the self-evaporative system will exhaust almost all condensation to ensure ambient conditions. Therefore, this particular model requires minimal maintenance on your behalf. Its design features are:
Timer – Set the timer up to 24-hrs in advance to operate right when you need it the most
Protective Cover – To ensure longevity, use the cover when stored. It also has additional space for the remote control and user manual
Speeds – Choose between 4 fan speeds
Furthermore, you can purchase with confidence as it has been designed with numerous safety features. For example, the leakage-current detection will automatically turn on the device to prevent hazards. Thus, you can allow it to operate when you’re not around.
9. Friedrich P12B – Best for Air Quality Improvement
Warranty: 1 year full, 5 years for the sealed system
If you are looking for convenience, this is the right model for your needs. The reason for this is because it has a capacity of 12,000 BTUs and it can easily cover a room of 400 sq. ft. Nonetheless, even if you have a smaller living space, you don’t have to worry about it making the space overly cold as the speeds are adjustable. Thus, you can make it operate according to your own particular needs. As well as, it’s straightforward to install even if you don’t have any experience with such a product.
3-in-1 Operating System
Similarly, to the other models mentioned in this review, you will get the most for your money by considering this product. The AC has been designed with 3 operating modes such as air conditioner, dehumidifier, and fan. Some of its design features are:
Filter – The antimicrobial filter is washable and easy to access. The unit doesn’t only provide cool air, but it will also remove airborne contaminants
Self-evaporative – The overflow protection will automatically shut off the appliance if the tank becomes full of water
Speeds – The 3-speeds will allow you to control the settings according to your own particular needs
Important Features To Consider
Moisture Removal – It has the ability to remove up to 72 pints of moisture per day or 6 pints per hour
CFM – The unit has been designed with a capacity of 252 cubic feet per minute
It has been noted that this AC has the ability to cool down a room as much as 40% faster than other single hose units. Additionally, the power cord measures 6 ft so you have the freedom to place it according to your needs. Some of its particularities are:
Auto Restart – In the event of a power shortage, the unit will automatically restart on the previous settings, when the power comes back on
Timer – The 24-hour programmable timer will allow you to set the unit to operate at a specific time
Automatic Mode – The AC will automatically set its speed according to the room temperature
The 3-speed operation and the auto-swing louvers will deliver an excellent airflow so that it eliminates hot spots in the room. Furthermore, the electronic controls are easy to understand as they’re clearly labeled and they also have a descriptive image drawn on.
Warranty: 1 year full, 5 years for the sealed system
This model has been designed with 12,000 BTUs so it’s suitable for rooms that measure up to 425 sq. ft. This is another model that can be used all year-round. This is a model that will provide practicality due to the fact that it has been designed with self-evaporation technology. Thus, it removes the need for you to drain it manually. If you wish, you can use the window vent kit for window installment.
If you’re someone that isn’t fond of fancy technology yet you still want to be comfortable, you should consider this unit as it’s very simple to understand. Each button has animation so you will know what it stands for specifically. Some of its design features are:
Remote Control– With a high frequency, you can change the settings from wherever you are in the room
Speeds – The unit has it has been crafted with 3 fan speeds so it can be maneuvered according to your own needs
Thermostat – You can choose the perfect temperature conditions in your room as it has an operating range from 61 to 89 degrees Fahrenheit
Multiple Modes Operation
Auto Mode – The intelligent auto mode will automatically adjust the fan speed and other settings in order to cool down the area to the set temperature
Dehumidify Mode – As warm weather and high humidity are often correlated, the unit can remove up to 80 pts per day of excess moisture from the air
Self-evaporative System – The automatic drain system will exhaust all liquid that has been formed due to condensation. Thus, you don’t have to manually drain it
This is an award-winning AC by the famous Good Housekeeping. In addition to this, the New York Times has also praised this product for its versatile features. This unit has the ability to cover an area of up to 400 sq. ft. with a power of up to 12,000 BTUs. In addition to this, it’s an eco-friendly CFC-free Green R-410A refrigerant.
This machine has been made with numerous programmable features and operating modes. Hence, if you’re looking for a versatile model, this is an excellent choice to consider. Its design features are:
Operating Modes – Choose between Cool, Dehumidifier, Fan-only, and Heat to make it work according to your specific needs
Thermostatic Control – Set the temperature anywhere between 61 to 89-degrees Fahrenheit for optimal living conditions
Filter – The washable pre-filter will remove the chemicals, pollution, and dust from the air
Due to the 24-hrs programmable timer, you can set it to cool on your terms. Set it to cool before you arrive home or it will automatically turn off once the timer has run out.
Features To Consider
Power Consumption – Maximum 1000-watts
Capacity – 155 CFM
Multiple Safety Features
This is not only eco-friendly but also lead-free. Hence, it’s RoHS-certified. Additionally, it has also been designed with an LCDI plug and an auto-drain function. The unit will fully exhaust all condensation in most environments. Its particularities are:
Dehumidifier – The machine will remove up to 76 pints of moisture per day
Speeds – Choose between the 3 integrated speeds
Air Louvers – The 2-way directional air louvers will direct the air according to your needs
In comparison, with the other models mentioned, this model comes with an upgraded window kit. Hence, you will find it easy to install it without additional help. The rolling casters and slim design will allow you to move it with ease.
6. Toyotomi TAD-T40LW – Best for Heating
Cooling capacity: 14,000 BTUs
Room coverage: 500 sq. ft.
Speed settings: 3
Air circulation: 222 CFM
Operating modes: AC, fan-only, dry
Energy efficiency ratio: 11.7
Moisture removal: 86.4 pints/day
Noise level: 55 dB
Dimensions: 19.5” x 33.5” x 15.7”
Weight: 77 pounds
Warranty: 1 year full, 5 years for the cooling system
If you’re looking for a model that will quickly create optimal living conditions, this is an excellent model to consider. This unit has been designed with a capacity of 14,000 BTUs for cooling and 11,000 BTUs for heating. Due to this, it has the ability to cover a room of up to 500 sq. ft. Hence, you can use it in your workshop, home, garage, or anywhere you need it the most.
Superior Condensation Capacity
This model has been praised for the excellent self-evaporative system. The company guarantees that most (if not all) condensation will be removed automatically so you don’t have to worry about emptying the tank by yourself. Its design particularities are:
Timer – The AC can be programmed from 1 to 12-hrs in advance
Casters – Move the unit wherever you go with minimal effort
Adjustable Thermostat – Make the unit to create the perfect temperature for you between 64° – 95°F
In case the water tank does need to be emptied, the LED indicator light will let you know. Otherwise, the unit will stop operating to prevent damages to the electrical part.
Similarly, to all of the models mentioned in this review, this is more than just an AC. As we like to provide you with products that will provide the most for your money, this is one of the units. This model has been designed with:
Cool – It will remove the hot and stale air and bring in fresh air
Auto-fan – The unit will automatically choose between the 3 speeds to create optimal comfort
Heat – This is a year-round use product as the 11,000 BTUs for heat will keep you warm
Dehumidifier – It can remove up to 3.6 pints of moisture per hour
Made in Japan, this product will be able to take care of your needs at all times. The reputable brand has taken care of thousands of people all over the world. Hence, you can purchase with confidence.
Without a doubt, this is one of the best models on the market due to its adjustability and power. It has been engineered with 14,000 BTUs and the heater has been crafted with 13,000 BTUs. It can cover a large area of 550 sq. ft. so you can use it for home and commercial use. It also has the ability to dehumidify up to 79.2 pints per day so you can keep it in a high humid environment. The year-round use means that you will get the most for your money by considering this product.
Important Features Integrated
Timer – You can program the unit up to 24-hr in advance. When the timer is done, it will automatically shut off
Airflow – You can control which way the air goes through the adjustable louvers in order to prevent hot spots from forming
Air filter – The filter will remove harmful contaminants from the air at an affordable price. The reason for this is because you don’t have to purchase a new filter every few months
It has a powerful airflow which means that it will cool down a room within minutes. The remote control will allow you to change the settings from afar. All of the tools that you need for the installation are included so you don’t have to seek the help of professionals.
Numerous Operating Modes
Cool Mode – The unit will offer a superior power of 14,000 BTUs to cool down a large room within minutes
Dehumidify Mode – The model can remove the excessive moisture from the air in order to prevent mold spores from forming
Fan Mode – If your room is stuffy but you don’t want cold air, this is the right setting for your needs
This is a 4-in-1 appliance. It has AC cooling, heat-pump, fan, and dehumidifier. Therefore, there’s no need to invest in another appliance if you don’t want to. It has an operational noise of 54 decibels so you can allow it to function throughout the night. The digital display can be read even in low-light conditions. The set it and forget it feature means that you can allow the AC to operate even if you’re not at home.
In case you have a large area to cool down and remove the excessive humidity, you should consider this model. It has been engineered with a capacity of 14,000 BTUs which means that it will cool down a room of up to 525 sq. ft. Without a doubt, this is the best model on the market as you can use it all year-round. The reason for this is because it has heat and cool functions. Thus, this model is versatile and practical for all. In addition to this, it’s also free of harmful chemicals so you can use it around children and pets.
You will be thoroughly pleased to know that even though it has a dual hose, it doesn’t mean that you need to call a professional for help. In fact, you will be able to use it straight out of the box as it has a beginner-friendly user manual and settings. Some of its features are:
Non-permanent Installation – As you may know, landlords do not want you to drill any holes. For this model, as long as there’s a place for the hot air to escape and an electrical outlet available, you will be able to install it without any hustle. The cord length measures 6.1 ft
No restrictions – Other types of AC’s require you to install it through a window or a wall, this model weighs a mere 75 lbs which means that you can carry it with ease and it’s also compliant with building codes and HOA’s
Installation Accessories Included – Inside of the package you will find a kit so you can set it up by yourself. It comes with a 56” maximum window kit and a 49” extendable exhaust hose. You must ensure that you connect it to a plug with an input voltage of 115V
Thermostat can be programmed to temperature from 61 to 89-degrees Fahrenheit
It has been made with RoHS compliant components
It has an energy-efficient ratio of 11.2 EER
It comes with a remote control
The unit can function as an AC, Heater with dehumidifying and fan abilities
You will be able to make it work according to your needs. This is excellent news, especially because the weather is becoming increasingly unpredictable. For example, this AC has the ability to condensate automatically. It has also been designed with:
Timer – Allow the AC to start operating according to your own schedule. The 24-hour timer means that it can begin cooling down the room even when you’re not at home. Thus, you don’t have to constantly change the settings
Speeds – This model has been crafted with 3 speeds so you can find the perfect temperature. Choose between low, medium, and high according to how hot it’s in the room. This will also have an effect on noise level
Automatic Restart – In case you’ve experienced a power failure, the unit will automatically restart as soon as the electricity comes back on. Therefore, you don’t have to babysit it
This model has been made with 14,000 BTUs for cooling and 10,000 BTUs for heating. Thus, you will be able to use it all year-round. It has a digital display which means that you will be able to see the settings with ease regardless if it’s a low-light environment. It has the ability to cool down a room of up to 500 sq. ft. so you can use it in your living room or large apartment.
Versatile and Programmable
Speeds – You will be able to set it up according to your needs as it comes with 3 speeds and 3 heating modes. As well as, the fan mode also has 3 speeds
Timer – It also has a 24-hour programmable timer which means that it can automatically start and shut off
Dehumidifier – You can use in high humidity places as it can remove up to 90 pts per day of moisture from the air
Airflow – You can control which way the air will flow through the adjustable louvers
Thermostat – The unit will allow you to set the perfect conditions for yourself as it has an operating temperature range from 61 to 100 degrees Fahrenheit
Filter – As it’s one of the best on the market, it can remove harmful contaminants from the air. The filter is washable which means that you don’t have to continuously invest into a new one
Easy Installation and Quiet Operation
This model has been designed with multi-directional casters which means that you don’t have to pick it up in order to move it. Simply, slide it across any surface. Inside of the package, you will find 2 exhaust hoses and a window venting kit. Therefore, you will be able to set it up with ease without the help of a professional. This unit has the lowest operational noise so you can use it throughout the night without getting distracted by the noise.
This is another model that has a capacity of 14,000 BTUs. Thus, it can clean large rooms of up to 500 sq. ft. The reason why this model is popular all over the world is due to the fact that it takes care of air quality. The Antimicrobial filter means that it will remove contaminants such as bacteria, viruses, and pet hair from the air so you can enjoy the clean, cool, and fresh air at all times. You can set this unit to function as an AC, fan, and dehumidifier. Thus, you will be able to get the most for your money.
Safe and Efficient
Ozone-free – You can use this model around children and pets due to the fact that it doesn’t produce ozone. Therefore, it’s safe to use extensively
Thermostat – The adjustable digital thermostat can be changed from 61 to 89-degrees Fahrenheit
Timer – It has a 24-hour programmable timer so you can maneuver it according to your needs
Multiple Modes Operation
The hassle-free set up means that you can set it up by yourself. The self-evaporative system means that you don’t have to constantly drain the unit. In addition to this, it comes with all of the accessories you need, in order to set it up. Some of its features are:
Cool Mode – This setting will cool down the air within 15 minutes in a large room
Dry Mode – The dehumidifier has the ability to remove excess moisture from the air at a rate of 91 pts per day
Fan – If you want fresh air without it being cooled down, this is the right setting
This unit has been engineered in order to provide you with efficiency and practicality. Even if you’ve never had such product before, you will find it easy to figure it out as every button is labeled and the digital display screen will show you the settings it’s operating on. Some of its particularities are:
Direct drain – This option will allow continuous operation without the excess condensation accumulating inside of the unit
Auto restart – In the event of a power outage, the unit will automatically restart with the previous settings
Operating noise – The unit has a noise level of 56 dB. Thus, you can use it throughout the day and night
Unlike the majority of the models that are currently on the market, this model has been designed with a self-evaporative system. This means that it has the ability to exhaust most if not all condense under ambient conditions. The casters will allow you to easily move it from place to place without too much hustle.
Warranty: 1 year full, 3 years for the sealed system
This 14,000 BTUs has the ability to cover an area of up to 500 sq. ft. which means that it’s suitable for a large house or light commercial use. To prove that this is one of the best units on the market, it has been awarded by the famous Good Housekeeping certification. Additionally, the dual hose design makes this the ideal solution for those that want minimal maintenance. The auto drain technology uses and recycles the gathered moisture to ensure a fast cooling process.
Numerous Operating Modes
By considering this model, you will get more than just a cool. It has been designed with numerous modes so you can make it work according to your particular needs. Also, this unit has been designed with:
Heater – It will keep the ambient temperature for an optimal living space. Set the heating temperature between 61°F – 77°F
Dehumidifier – By selecting this mode, up to 101 pints of moisture per day will be removed
Fan – If you want to fill the area with refreshing air, set it on Fan Only mode. The temperature will not lower
Cool – Due to the high capacity of 14,000 BTUs, the room will be cooled down within minutes
You can have full control over the room’s temperature by adjusting the thermostat. Choose between 61°F – 89°F to have the perfect living space for your needs. Use the included remote control to change the settings according to your wishes.
Features To Remember
Capacity – 222 CFM
Air Flow – 360 m3/h
Activated Carbon Filter
This air conditioner will not only take care of the room’s temperature but also the conditions of the living space. Therefore, the pre-filter will remove contaminants such as odor, pet dander, and dust from the air. This feature will prevent allergy triggers from happening. Its particularities are:
Speeds – There are 3 integrated speeds to choose from
Timer – The 24-hrs programmable timer will allow you to set it to work whenever you need it the most
Auto Restart – In case of a power shortage, the unit will automatically restart, on the previous settings
In comparison, with the other models in its price range, the unit will take care of your needs and of the environment. The eco-friendly CFC-free Green R-410A refrigerant is RoHS-compliant and lead-free. Therefore, you don’t have to worry about negative effects by using it long-term.
Other features: Auto-swing louvers, Automatic restart, Digital thermostat, Self-evaporating design, Washable air filter
Dimensions: 18.5” x 18” x 33.5”
Warranty: 1 year
Single Vs. Dual Hose Air Conditioners
Each configuration has its own highlights, benefits, and limitations. Whatever one you choose depends on your needs. As a rule of thumb, if you want the room to be cooled down fast, you should use a dual hose configuration. Nonetheless, if you have limited space, a single hose AC would be the right choice for you. Regardless, each configuration has energy-efficient operation so you don’t have to worry about seeing spikes in your energy bill.
Fast – Out of the two configurations, dual hose ACs have the ability to cool down a room the fastest. This also has a positive impact on your electricity bill. The faster it will operate, the lower the amount of money you have to pay.
Longevity – In a single hose AC, more unfiltered air will enter the unit. Thus, it will shorten the lifespan of the unit by many months. Whereas, dual hose units are designed with a filter that will remove the contaminants from the air.
Efficiency –The hot air that is taken from the room is cooled inside of the unit and then expelled back into the room. Even though the process will heat the unit, the second hose will intake air from the outside which will cool down the unit. Thus, you will always be ensured cool air on a hot summer’s day.
Functions –The majority of such configuration are designed with numerous functions so you will be able to get the most for your money. This is why all of the models mentioned in this review can act as a fan, dehumidifier, and a heater. Therefore, you can use them all year-round.
Portability– Without a doubt, these are much more lightweight than the dual house configuration. Therefore, you will be able to handle them much better and much easier when it comes to moving them.
Air– As mentioned, the dual hose ACs cool down the air rather than bringing in the fresh air. A single-hose AC will provide you with fresh air from the outside. Nonetheless, you have to remember that it won’t remove the contaminants from the air.
All of the models mentioned in this review have numerous functions such as a heater, fan, and dehumidifier which means that you will get the most out of your money. In addition to this, as they’re portable, it means that you don’t have to commit to a permanent installation. Thus, you can take it wherever you go.
These are the most that we recommend to take a second look at:
This model has been crafted with RoHS compliant components which means that you’re guaranteed that it will last for numerous years while maintaining the same high quality from the beginning. Similarly, to the majority of products mentioned, it has a capacity of 14,000 BTUs so it can cover an area of 500 sq. ft.
With an energy-efficient operation, you can allow this unit to operate throughout the day and night without worrying about considerable changes in your electricity bill.
This unit has the ability to cool down a room of up to 500 sq. ft. within 15 minutes due to its high capacity of 14,000 BTUs. In addition to this, this model is safe to use extensively throughout the day and night as it’s ozone-free.
Additionally, it’s also worthy to mention that it has an antimicrobial filter which will capture and eliminate allergens such as bacteria, viruses, and fungi.
As it has a capacity of up to 14,000 BTUs for cooling and 10,000 BTUs for heating. As well as, the adjustable louvers will distribute the air evenly in a room of up to 500 sq. ft. to ensure that there are no hot spots in any corner of the room.
Perhaps, what’s so special about this model is the fact that it comes with a window venting kit which means that you don’t have to invest further or call a professional to help you set it up.
Logan was born and raised in Bakersfield, California, one of the most affected American cities by pollution, experiencing firsthand the phenomenon’s dangers. He worked in retail for a small electronics shop for 5 years, where he had his first experience with air purifiers. With his interest in technologies that are meant to improve life quality and the technical skills he gained with the passing of time, Logan is able to provide readers with in-depth analysis of life-changing devices.