Features:

• Replacement filter set for Blueair 601.

Editor Reviews:

Product Description:
Blueair 601 Series Particle Replacement Filter.

Rating : - All good; smooth transaction
Actually, I purchased the Blueair 501 series filter (regular, not smoke). I've been using this filter for years, works really well. This particular purchase (merchant via Amazon) went smoothly and well.

Only complaint is that they put a box inside a box to ship. What a waste of resources and money!