Philips HU4902 User Manual download pdf (Page 7)

7EN

Understand the healthy air

protect lock

The healthy air protect lock always ensures

that your humidier does not work without

water in the tank. When the water tank is

empty and needs to be relled, the healthy

air protect lock shuts off the humidier and

a red indicator lights up. When you rell the

water tank properly, the humidier is turned

on again.

Switch the humidier on and

off

Plug the humidier into the power supply.

» All lights ashes twice.

2 Press the



button to switch on the

humidier.

4 Use the

humidifier

Understand the humidity

indicator light

The humidier is equipped with a built-in

humidity sensor. The current humidity level is

shown on the display (40, 50 or 60 percent).

Note

•

The accuracy of the humidity indication is

approximately plus or minus 5%.

• It takes some time to measure the humidity level in

the room..

Color of the humidity

indicator light

Humidity level

Blue target achieved

Red below target

The humidity indicator light automatically goes

on when the humidier is switched on.

Note

•

The built-in humidity sensor measures the humidity

level and automatically selects the appropriate color

of the humidity sensor light. When the desired

humidity level is reached, the color of the humidity

sensor light is in blue. When the humidity level is

not reached, the color of the humidity sensor light

becomes red.

Understand the healthy air

protect alert

The healthy air protect alert gives you a timely

warning when the water tank needs relling.

When the water in the tank starts getting low,

a red indicator on the control panel starts

blinking to tell you that it is time to rell the

tank.

English

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Philips HU4902 User Manual Page 7

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