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Miele S 2131 にも：取扱説明書 (24 ページ)

Maintenance and care

When to change the dustbag

Change the dustbag when the colour

marker in the dustbag change indicator

fills the display, or sooner if it is no

longer effective.

Miele dustbags are disposable, and

designed for single use only.

Do not attempt to re-use them as

suction would be reduced.

Checking the dustbag change

indicator

^ Attach the standard floorhead to the

suction tube.

^ Switch the vacuum cleaner on and

select the highest power setting.

^ Lift the floorhead off the floor a little.

How the dustbag change indicator

works

The dustbag change indicator is set for

normal household dust. Normal

household dust would contain a mixture

of dust, hair, carpet fluff, threads, grit etc.

However, if the vacuum cleaner has

been used to suck up fine dust, the

pores of the dustbag will become

blocked very quickly. This affects the

air permeability of the bag, and the

marker will indicate that the bag is "full"

even when it is not. If this happens you

must still change the dustbag because

suction power will be greatly reduced

by blocked pores in the dustbag.

If, on the other hand, you have

vacuumed up a large amount of hair

and carpet fluff which typically contains

a lot of air, the indicator may fail to

react even though the bag is full. You

should still change it!