What filter(s) fit a Shark NV581QBL vacuum?
The Shark NV581QBL vacuum takes 2 filters: WP11973 and WP11974.
Key takeaways
- Filter set: WP11973, WP11974.
- Includes a HEPA-rated filter.
- Replace roughly every 6-12 months, or sooner if suction drops.
- A cheaper aftermarket filter can fit the same slot - check reviews for real-world fit before buying.
Shop the filter set for your NV581QBL
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Also fits these vacuums
Filters for the rest of your home
FiltersDex covers the exact replacement filter - and what it removes - across every appliance:
Frequently asked
What filter(s) fit a Shark NV581QBL vacuum?
The Shark NV581QBL uses 2 filters: WP11973 (HEPA) and WP11974.
Does the Shark NV581QBL use a HEPA filter?
Yes - at least one filter in the Shark NV581QBL's filter set is HEPA-rated.
Should I buy the OEM filter or an aftermarket one?
The genuine filter is the safe, exact-fit choice. A cheaper aftermarket filter can fit the same slot too - check reviews for real-world fit and suction performance before buying, since vacuum filters generally aren't independently certified the way NSF-listed water filters are.
How often should I replace or wash my vacuum's filter?
Washable filters should be rinsed (water only, no detergent) every 1-3 months and fully air-dried for 24 hours before reinstalling. Non-washable filters are typically replaced every 6-12 months, or sooner if suction drops.