Remove the old ultrafine filter
▶ Loosen and fold back the two clamping strips ① on the ultrafine filter ②.
▶ If possible, bring the house into the open.
▶ Carefully remove the ultrafine filter ② from the housing. Make sure no fine
dust enters the housing.
▶ Pack the dirty ultrafine filter in a dust-tight plastic bag③ and dispose of proper‐
ly.
▶ Vacuum up any residual dust in the filter compartment with a BIA-compliant
vacuum cleaner.
Install a new ultrafine filter.
▶ Insert the new ultrafine filter ① into the housing with the opening facing to the
rear.
▶ Fix the ultrafine filter with the two clamping strips②.
Instructions for use SMARTair/plus FLEXspace Typ 5230/5231
7 Cleaning and servicing | 7.2 Maintenance
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