How Should You Check and Clean an Air Purifier's Intake and Pre-Filter During Shedding Season?
When pet hair collects around your purifier, first inspect the intake for visible buildup. If fur covers the openings or has reached the pre-filter, check the current model manual for the required shutdown, access, and cleaning steps. Remove the visible buildup using only a method permitted for that component, then follow the manual's instructions for reinstallation and returning the purifier to service.
Check the intake before removing the pre-filter
Look around every air-intake opening, including panels near the floor and any intake that faces a wall or furniture. You are looking for visible strands, clumps, or a blanket-like layer that blocks part of the opening.
A few loose hairs on the grille can usually be lifted away during a surface clean if the model instructions permit it. If hair covers several openings or has reached the pre-filter behind the grille, consult the manual before opening the user-serviceable cover.
Before opening it:
- Follow the manual's shutdown and disconnection procedure.
- Confirm which cover and filter components are user-serviceable.
- Note the specified orientation and removal order so the parts can be reinstalled correctly.
Access and pre-filter construction vary by model. If a panel does not release as the manual describes, stop and recheck the applicable instructions rather than improvising another removal method.
Remove visible hair using a model-approved method
Start at the outside of the intake. Remove accessible clumps using only a tool or cleaning method approved for the model.
After opening a manual-approved cover, clear the cover and accessible intake surfaces as directed. Do not introduce a tool, cleaner, or liquid into the filter compartment unless the instructions for that model explicitly permit it.
If the pre-filter is separately removable, follow its handling and removal instructions. If it is part of a larger filter assembly, clean only the surfaces and components identified as serviceable in the manual.
Match the cleaning method to the pre-filter

Check the maintenance instructions for the exact pre-filter before choosing a method. Confirm whether that component may be removed, vacuumed, brushed, washed, or must be replaced. Use water or a dry-cleaning method only when it is explicitly listed for that component, and follow any preparation, drying, and reinstallation requirements in the manual.
If the permitted cleaning method does not clear the visible buildup, or if the component appears damaged, use the model's maintenance instructions to determine whether replacement is required.
If you are still comparing models, the guide to the best air purifier for airborne cat hair explains why a removable pre-filter, accessible intake, room coverage, and usable fan speed all matter.
The Meowant MW-PA08 pet air purifier is designed for pet households with a large intake and a reusable, replaceable pre-filter.
Reinstall the filter and confirm the intake is clear
Reinstall the pre-filter and cover in the orientation and order specified by the model instructions. Before returning the purifier to service, confirm that the assembly matches the manual and that no visible fur covers the exterior intake.
An air purifier can help with hair that is still airborne, but it cannot remove fur that has already settled on floors, furniture, or bedding. See Can an Air Purifier Help With Cat Hair? for how to combine filtration with direct surface cleaning.
During heavy shedding, use new visible buildup on the intake or pre-filter as the cue to inspect it again. For an operating issue that remains after the visible hair is cleared and the parts are reinstalled, use the model's troubleshooting instructions rather than extending this cleaning routine.