5
Important
• Read these instructions in conjunction with the illustrations before using the appliance.
• Do not immerse the appliance in water or any other liquid.
• Do not use the appliance outdoors or in a humid environment.
• The appliance influences the air circulation in the room. In general, it is not advisable to use
it near an open fire.
• Always unplug the appliance before you remove any parts, before you start cleaning it and
when the appliance is not used.
• The appliance can be cleaned with a damp cloth and some detergent, if necessary.
• Do not use this air cleaner (or any motor-driven household appliances) in the presence of
oxygen or any flammable material or gases.
• Use only the original Philips filters.
• Do not obstruct the air inlet and air outlet openings.
• Do not place the air cleaner on a soft surface such as a bed or couch.
• Do not place the air cleaner next to a humidifier.
• Do not place the air cleaner within 1.5 m of a computer.
• Keep the mains cord away from heated surfaces.
• If the mains cord of this appliance is damaged, it must only be replaced by Philips or its
service representative, as special tools and/or parts are required.
• Save these instructions for future reference.
How to use
• Put the mains plug in the socket.
• Set the speed selector (F) to the desired
setting. The power “on” Indicator (E) will light up
to indicate that the air cleaner is working (fig. 3).
Type HR 4366:
• 1 = low quiet air cleaning
• 2 = high high-speed air cleaning
Type HR 4368:
• 1 = low quiet air cleaning
• 2 = normal quiet continuous air cleaning
• 3 = high high-speed air cleaning
• For quick air cleaning, set the speed control to
the high-speed setting. After approximately half
an hour, set the switch to a lower speed setting.
• To maintain clean, fresh air in your room all the
time, it is best to run the appliance continuously
at the low or normal setting.
• For nighttime use, set the air cleaner to the low-
speed (• 1) setting for quiet air cleaning.
When to clean / replace the filters
• Remove and clean the foam prefilter at least
every two months.
• Remove and replace the HEPA/carbon filter
at least every six months or when the colour of
the HEPA/carbon filter matches that of box 4 of
the filter full indicator.
• To replace your HEPA/carbon filter on time,
regularly check the colour against the filter full
indicator (fig. 4).
The four coloured boxes indicate:
box 1: filter is new.
box 2/3: used filter, can still be used
box 4: filter is full and needs to be replaced.
• Check the filters right away if the appliance
becomes noisier. Clean the prefilter and/or
replace the HEPA/carbon filter if necessary.
• The HEPA/carbon filter in your air cleaner
should remain effective for approximately
6 months when used continuously.
• The life of the filter is affected by the frequency
of use and the concentration of pollutants in the
air.
• New HEPA/carbon filters are available from
your dealer under number HR 4990 (single
pack).
