Number of speeds
The number of preset speeds of the device. Air coolers mainly have adjustments with preset speeds — step by step; with this control, the speed is set by pressing the corresponding button. The more speeds, the more comfortable you can configure the devices to suit your needs and premises.
Night mode
A special mode of operation, designed for nighttime. As a rule, in this mode, the device reduces the speed of operation, thereby reducing noise. Some models in
night mode also support higher rates than in daytime — it is believed that this is the optimal microclimate for sleep.
Wind simulation
This mode of operation periodically changes the speed of the fan, sometimes turning it off altogether, creating gusts of wind. Different manufacturers call this mode differently:
nature mode, comfort mode, breeze mode, natural, and the like, but they all serve the same purpose.
Ionizer
A device for saturating the air with negatively charged ions. It is believed that the presence of such ions in the air has a beneficial effect on health and well-being, and also creates a feeling of freshness. In addition,
ionization helps to reduce the amount of flying dust — it settles faster on various surfaces.
Timer
The function that provides automatic shutdown after a user-defined time. It eliminates the need to turn off the device manually, which is not always convenient.
The timer can be useful, for example, if the device is turned on at night, or if it works in a children's room with a sleeping child who is not wanted to be disturbed.
Display
The display makes the control of the device more visual. The display can show information about the current operating mode, the set timer, the status of the filter or water tank, etc. Information about the status of humidity and temperature can also be displayed. Displays, as a rule, are equipped with expensive models with electronic control.
Control
The type of control provided in the device.
Note that
mechanical and
electronic devices can use the same elements — buttons, rotary knobs, sliders, etc. — and as a result almost do not differ from each other in appearance. The difference lies in the fact that the mechanical control directly affects the working part of the device (for example, when the knob is turned, the resistance of the rheostat that regulates the power changes), and the electronic one sends a signal to the control circuit, which accordingly changes the parameters of the device. The advantages of mechanical control are simplicity, reliability and low cost. However, it allows you to adjust only basic functions, and the accuracy of adjustments is low. In turn, with electronic control, various additional features can be provided and individual operation parameters can be very precisely adjusted, but such control is more complicated and expensive. Also, electronic control can be
touch-sensitive, which gives the device elegance and elevates it to a more advanced level.
Noise level
The maximum noise level generated by the air cooler during operation. Most of these devices are used in residential areas, so this parameter should be treated carefully. According to sanitary standards, constant noise in such rooms should not exceed 40 dB (quiet conversation) during the day and 30 dB (wall clock ticking) at night. More detailed comparison tables and recommendations can be found in special sources. It is also worth mentioning that the noise level is indicated for the maximum operating speed, so the noise level will be significantly lower in reduced mode.
