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When to change the filter bag (see fig. 32)

Change the filter bag when the colored marker in the airflow indicator completely fills the display in red.

Filter bags are disposable and are designed to be used only once. Dispose of full filter bags. Do not attempt to reuse.

Clogged pores reduce the suction power of the vacuum cleaner.

Check the airflow indicator

￿Attach the standard floor brush, AllTeQ or AirTeQ to the vacuum cleaner. All other suction tools may affect the function of the airflow indicator.

￿Switch the vacuum cleaner on and select the highest power level.

￿Lift the floor brush slightly off the floor. If the marker completely fills the indicator window, the filter bag needs to be changed.

How the airflow indicator works

The airflow indicator is designed to show when the bag is full of common household dust and measures the amount of air flow through the filter bag. Normal household dust is a mixture of dust, hair, carpet fluff, threads, sand, etc.

However, if fine dust, such as drill dust, sand, plaster or flour is vacuumed, the pores of the filter bag may become blocked. The marker will indicate that the bag is "full" even when it is not. The filter bag should be changed as the suction power is greatly reduced.

If the bag is bulging with pet fur, hair, carpet fluff, etc. the indicator may not register "full". This is because the air flow of the filter bag may still be high enough not to activate the marker to show maximum. The filter bag should still be changed.

How to change the filter bag (see fig. 33 + 34)

￿Lift the release button and open the dust compartment lid upwards until it clicks into place.

The filter bag has a flap that automatically closes to prevent dust from escaping when the bag is removed.

￿Grasp the collar and remove the filter bag from the holder.

￿Insert the new filter bag into the blue holder as far as it will go. Note: Do NOT unfold the filter bag when you take it out of the box.

￿Unfold the filter bag in the dust compartment when possible.

￿Now close the dust compartment lid until it clicks into place, take care not to catch the filter bag in the lid.

￿If you do not insert a replacement filter bag, the dust compartment lid is designed not to close. Do not use force!

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Miele S 8390, S 8380 When to change the filter bag see fig, Check the airflow indicator, How the airflow indicator works
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S 8390, S 8380, S 8370 specifications

Miele, a renowned leader in high-end kitchen and home appliances, has consistently pushed the envelope of innovation and design. Among its impressive lineup of vacuum cleaners, the S 8370, S 8380, and S 8390 models stand out with their unique features, cutting-edge technologies, and exceptional performance.

The Miele S 8370 model is built for versatility and efficiency. It is equipped with the powerful Miele Vortex Motor which generates an impressive suction power, ensuring deep cleaning on various surfaces from carpets to hard floors. One of the standout features is its AirClean Sealed System, which captures over 99.9% of all fine dust particles, providing a more hygienic environment, especially for allergy sufferers. The model also comes with a range of attachments, including a dusting brush, upholstery nozzle, and crevice tool, catering to different cleaning needs.

The S 8380 model enhances this foundation with additional features. It incorporates the Active AirClean filter that not only captures dust but also neutralizes unpleasant odors, making it ideal for pet owners. This model also features the Comfort telescopic suction tube, allowing for easy adjustments as you move around your home. The ergonomic handle ensures comfortable handling during prolonged cleaning sessions. Additionally, the S 8380 has a high dustbag capacity which minimizes the frequency of bag changes, offering convenience for the user.

The Miele S 8390 is the flagship model of this series, designed for discerning consumers who seek both performance and luxury. It boasts an upgraded filtration system with the HEPA AirClean filter, which ensures that 99.99% of all particles are retained, making it the perfect choice for homes with sensitive individuals. The S 8390 also includes the innovative DynamicDrive wheels that allow for smooth maneuverability on any surface without damaging floors. This model features an integrated LED light in the floor nozzle, providing visibility in dark corners and under furniture.

All three models are designed with user convenience in mind, featuring a dustbag change indicator that alerts users when it’s time to replace the bag. Moreover, the models come with a robust construction characteristic of Miele's commitment to quality, promising longevity and durability. These vacuum cleaners represent a blend of cutting-edge technology and thoughtful design, ensuring optimal cleaning results and comfort, making them a popular choice for households seeking reliable and efficient cleaning solutions.
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