User manual PHILIPS HR4325

[. . . ] 1 Prefilter The washable prefilter catches the larger airborne particles , such as fluff , hairs , etc. 2 Rota filter This rotating filter catches particles of down to 2 microns in size (for instance pollen). When a particle enters one of the ducts of the filter, it is pressed to the wall of the duct as a result of the centrifugal force. The air is allowed to pass through the duct while the particle remains behind in the filter. [. . . ] 3 HEPA filters Finally, the HEPA filters remove all remaining particles from the air, small particles in particular. The filter is made of glass fibres which are packed so closely together that they prevent even very small particles from passing through the filter. Read the instructions carefully before you start using the appliance. â· Never immerse the appliance in water or any other liquid. â· Do not use the appliance outside or in a humid environment. â· The appliance influences the air circulation in the room in which it is used. It is recommended not to use the appliance next to an open fire. â· Always remove the plug from the wall socket before you open the appliance or before you start cleaning it. â· Do not touch any moving parts when you open the appliance. â· If the cord of this appliance is damaged, it may only be replaced by an authorised Philips service centre, since repair requires special tools and/or parts. Opening the air cleaner Note that the front of the air cleaner has been provided with an automatic safety lock which makes it impossible for you to open the appliance while it is running. The automatic safety lock also ensures that you cannot switch the appliance on when the front has been removed. - Remove the front of the appliance by pulling it towards you on one side (fig. Clean the prefilter and the Rota filter at least once every two months and more often if the appliance becomes noisier and if it is used in a room in which people smoke. If you have used washing-up liquid, rinse the filters with clean water (fig. - Proceed in reverse order and direction to put the filters back into the appliance. - Turn the HEPA filters upside down and compare the colour of their base with the colours on the HEPA filter replacement indicator (F) (fig. - Check the filters right away if the appliance starts to produce more noise. If the air cleaner is being used in a room in which people smoke, It may be necessary to replace the HEPA filters more often. - NB: new HEPA filters are available from your retailer under number HR 4920. [. . . ] If the air cleaner is being used in a room in which people smoke, It may be necessary to replace the HEPA filters more often. - NB: new HEPA filters are available from your retailer under number HR 4920. Automatic cut-out to prevent overheating To prevent damage to the appliance due to overheating and to limit the risks, the automatic cut-out ensures that the motor is switched off when it becomes too hot. to indicate that the appliance is still switched on and connected to the mains , the pilot light will continue to burn. [. . . ]