The Quietest Air Conditioners

The reputable German company Bosch primarily produces industrial climate equipment. However, the brand's portfolio includes suitable solutions for the home and office. One such is the CL3000i-Set 25WE residential split system.

The inverter-controlled air conditioner precisely maintains the target temperature in serviced premises with an area of up to 26 m². The split system operates on environmentally friendly refrigerant R32. It cools at outdoor temperatures up to +50 °C and heats down to -15 °C outside the house or small office. Moreover, to avoid drafts, the air conditioner features an "Anti-cold air" function.

The energy efficiency class of the split system in cooling mode is marked A++. Indeed, the inverter compressor is economical in terms of energy consumption. It also is impressively quiet. In night mode, the indoor unit emits noise quieter than a human whisper. For more precise maintenance of set microclimate parameters directly near household members, the remote control for the split system is equipped with a Follow Me temperature sensor.

Clean air supply is ensured by the i-Clean system, which eliminates harmful microbes and bacteria by heating air masses in the evaporator up to 56 °C. Additionally, the model is equipped with a catalytic filter for neutralizing harmful impurities and removing odors, while the HEPA filter performs fine air purification from mechanical particles. The Bosch Climate CL3000i-Set 25WE guarantees the purity and freshness of cooled or heated air.

The Haier Revive Plus AS25RV/1U25RV household split system is designed to service residential areas of about 25 m². It operates on ozone-safe refrigerant R32 under the control of an economical and low-noise inverter compressor.

Quiet operation is one of the most significant advantages of this model. The noise level of its indoor unit does not exceed 32 dB in productive mode and is about 18 dB in the quiet night airflow mode. The reduction in noise level is facilitated by airflow guides with Coanda Plus effect, ensuring even distribution of air masses, which penetrate all remote corners of the room. The I Feel sensor in the remote control helps maintain the set temperature parameters more accurately.

The air conditioner provides effective cooling at outdoor temperatures up to +43 °C and heats in frost down to -20 °C. The model features a standby heating mode to prevent wall freezing in an unheated room. The constant temperature is maintained at about +10 °C. Remote control of the split system with parameter monitoring is carried out through the mobile app hOn.

In addition to creating and maintaining comfortable microclimate conditions, the model ensures proper air cleanliness. It incorporates two remarkable self-cleaning technologies: Self-Clean (removal of fungi, microbes, and mold by freezing heat exchangers of internal/external units) and Steri-Clean (heating the heat exchanger of the indoor unit to 56 °C for sterilization from viruses and harmful microorganisms). A complete cleaning cycle in the first mode takes 20 minutes, and in the second mode — 30 minutes. The cleaning procedure is recommended 2-3 times a season or as the heat exchanger plates get dirty.

The Mitsubishi Heavy SRK25ZSX-W model in diamond "cut" belongs to the designer league of household Diamond split systems and is designed to operate in premises "squared" up to 25 m².

The air conditioner is equipped with a durable, economical, and low-noise brushless drive. By default, the model operates on ozone-safe refrigerant R32, but it can be used in multi-split systems on refrigerant R410A. The model can operate in outdoor air temperatures ranging from -15 °C to +46 °C in cooling mode and from -20 °C to +24 °C in heating mode.

At minimal fan speeds of the indoor unit, the split system is no louder than a human whisper (19 dB). Along with precise target temperature maintenance, the air conditioner performs air cleaning. It is equipped with an anti-allergenic filter and a washable photocatalytic deodorizer.

When the model is equipped with a Wi-Fi adapter AM-MHI-01, remote control of the split system functions from a smartphone or tablet is possible. The wireless communication module is purchased optionally and is not supplied in the factory configuration of the air conditioner. Mitsubishi Heavy Diamond SRK25ZSX-W is an optimally balanced split system for home or small office with an emphasis on highly efficient quiet operation.

Quiet, economical, reliable, and durable Cooper&Hunter air conditioners have established themselves positively. A testament to this is the CH-S09FTXAM residential split system from the Majesty Gold series.

The model is adapted to operate in a wide range of outdoor air temperatures from -25 °C and up to +50 °C. At low negative mercury column readings of the outdoor thermometer, the air conditioner starts thanks to the heating system of the external unit's tray and compressor. R32 refrigerant with excellent cooling capacity and high energy efficiency circulates through the split system "vessels."

Cooper&Hunter Majesty CH-S09FTXAM uses inverter control with artificial intelligence CH-AI. The "smart" technology collects and analyzes information about weather conditions, room area, current temperature, and adapts the operating mode to accurately maintain the target temperature with minimal energy consumption. The model also comes "out of the box" with support for remote control via smartphone. The remote control for the air conditioner incorporates an I FEEL temperature sensor.

The standard operating modes of the split system for cooling, heating, dehumidification, and ventilation are supplemented by a separate standby heating program (to avoid wall freezing in unheated premises). In addition, the model ensures air cleanliness — it is equipped with a comprehensive CH 7-SKY air purification system with an Eco Fresh plasma filter and a built-in Smart Ion ionizer. An UV lamp complements the picture, disinfecting airflows from viruses, bacteria, and pathogenic microorganisms. Despite all these advantages, the split system is also low-noise — in the quietest night mode, the indoor unit operates completely inaudibly (19 dB).

Among its peers in the segment of household wall-mounted split systems, Samsung AR09BXFAMWKNUA stands out with a special perforation of the indoor unit's housing. Why are there over 23,000 holes in it? Let's figure it out.

Through the micro-holes in the indoor module's housing, cooled air is supplied without the risk of drafts. This design innovation was called WindFree. It promotes more even distribution of air masses and allows for savings on electricity bills. Simultaneously, it reduces the noise level of the indoor unit (from 19 dB).

The air conditioner features an intelligent system for fully automatic maintenance of a comfortable microclimate AI Auto Cooling. The unit is powered by an economical and durable inverter drive. The split system compressor efficiently maintains the desired temperature without frequent on and off cycles.

Right under the front panel of the indoor unit, there is an easily removable Easy Filter Plus with an antibacterial coating, which is easy to take out and clean from dirt. The air conditioner's operation is controlled via a remote control with a screen or can be adjusted using a smartphone or tablet. The Samsung AR09BXFAMWKNUA split system integrates into a "smart" home system through the SmartThings mobile app.