1. Introduction | 2. What’s New in the New Edition? | 3. Inside the Box | 4. Certificate of Performance
5. Ultrafine Particles | 6. How Does it Work? | 7. Key Features | 8. Specifications | 9. Housing Design
10. Controls and Operation | 11. Inside the Unit | 12. Performance | 13. Noise Level | 14. Comparisons
15. Conclusion - Pros and Cons



11. Inside the Unit - Replacing Filters

Opening the unit

Accessing the filters is easy and requires no tools. On each side of the unit's housing there are two locking side arms. To open the unit, first unplug it from the wall, and then just push out one of the side arms away from the unit with your thumbs until it snaps loose. Repeat for the other side arm and pull both locking side arms evenly outward away from the main body of the unit until they both snap into place. The side arms will now remain in the open position, allowing you to remove the individual filter drawers from the main body. To close the unit again, simply line up the filter drawers and push both locking arms inwards simultaneously until they snap back into the housing.

Replacing the PreMax Prefilter (F1)

After unlocking both side arms, you can remove the filter drawer containing the PreMax pre-filter by slightly lifting up and pulling out the lowest compartment of the housing. Once the filter drawer has been removed, pull out the plastic filter clamps that secure the filter inside the drawer, turn the drawer upside-down, and push the filter out. Turn the filter drawer right side up again, and insert the new filter with the "this side up" sticker facing up. Replace the filter clamps and then slide the drawer back into the housing.

Replacing the HyperHEPA Filter and V5 Cell Filter (F2 and F3)

The procedure for replacing these filters is the same as the PreMax pre-filter, except instead of pulling the drawer out from the side of the unit, you simply lift off the top diffuser by the handle and set it aside. Then, just lift out the top filter drawer which holds the HyperHEPA Filter, and lift out the next drawer to access the V5 Cell Gas & Odor Filter.

When replacing the HyperHEPA and V5 Filters, you will see some black carbon dust inside the filter frames of both filters. This is normal and a natural result of the activated carbon inside the V5 Cell Filter. None of this carbon dust will be emitted into the room air by the unit – any carbon dust emissions will be trapped by the HyperHEPA filter before it can be released into the room. Any air purifier with activated carbon should always have a filter such as a HEPA filter after the carbon filter stage, to ensure that carbon dust remains inside the unit at all times.


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