Comparison Philips Essential BHS376 vs Philips Essential BHS378

— Turbo mode. A mode designed to dry wet hair as quickly as possible. At the same time, the speed of air movement through the hair dryer increases significantly, and the temperature remains the same. This allows you to quickly dry your hair without exposing it to high temperatures. Working in turbo mode usually involves an increased load on the device, so before using such a hair dryer, you should separately clarify in the instructions for what maximum time you can turn on turbo mode.

— Auto-rotation of the nozzle. The function of automatic rotation of a brush or other round nozzle (see "Nozzles"). Thus, the user gets rid of the need to turn the entire device when styling hair, which may not be very convenient. Note that with long hair this function should be used very carefully, as there is a risk of entangling them instead of styling.

— Intelligent Temperature Control. A function for controlling the temperature that affects the hair to prevent damage. These sensors help ensure more accurate and safe device use by automatically adjusting the heat and maintaining an optimal temperature during styling.

— Temperature memory. Devices with this feature are capable of "remembering" the temperature setting used before being turned off and automatically activating it upon the next power-on. Temperature memory is par...ticularly convenient in cases where the device is consistently used at the same temperature but requires significant breaks during operation. In such situations, this capability significantly saves the time and effort of the user, as there is no need to adjust the heating settings every time after turning it on.

— Cold air. The ability of the hair dryer to work without the use of a heating element — when the air flow has the same temperature as the surrounding air. This mode will be useful for drying weakened hair, especially sensitive to overheating. In addition, it can be useful during styling — in particular, cold air “fixes” the finished hairstyle.

— Ionization. An ionizer is a device for saturating the air with negatively charged oxygen ions. Optimizes styling, giving hair new positive properties — for example, increased smoothness. Also, the hair is not electrified thanks to the ionizer.

— Steam humidifier. Some hair styling devices may be equipped with a container for liquid and a device that delivers hot steam to the hair. In this case, both ordinary water and a special styling liquid can be used. It is believed that the use of steam greatly facilitates the styling process, as the hair becomes more manageable. On the other hand, the high temperature of the steam can adversely affect the health of the hair, especially if the hair is weak or steam styling is used frequently.

— Alert timer. Devices with a built-in timer that makes audio signal after a set time. This function is relevant in stylers and curling irons, which allows the same time to curl curls. As a result, the hairstyle will have the same curls — there will be no imbalance in the curls when one turned out more and the other less.

— Automatic switch-off. A mechanism that ensures that the device turns off either after a specified period of time, or when a predetermined (or manufacturer-defined) temperature is reached. Prevents excessive heating of nozzles/plates, as well as overheating of the device in general.

— Key lock. The presence of a protective function of blocking the buttons allows you to avoid accidental pressing in the process of working with the device.

Input voltage 110/230 V in hair dryers and styling tools means “dual-voltage”: the device works correctly both in USA/Japan grids (~110 V, 50/60 Hz) and Europe/Ukraine (~220–230 V, 50 Hz). Depending on the model, switching is automatic or via a manual slider; at 110 V the actual power is usually lower, so heating and drying take a bit longer. This compatibility is convenient for travel: a plug adapter is enough, no transformer needed. Compared to single-voltage versions, “dual-voltage” models are safer on the road, retain overheat protection and ionization, but sometimes fall short in peak power. It’s practical for travel hair dryers, multistylers, and hot air brushes when the same device is used at home and on trips.