I see no words in the item description that indicate the quantity as plural, is this a 3 pack or a single?

Watch the video. The machine uses 3 filters at the same time, so it's a 3 pack, that provides a single change of all 3 filters in the machine. The recommendation is one of these 3 packs every 6 months for a complete filter change.

Is this the standard filter used in HepaSilent model for Blueair 500/600 Series Air Purifiers?

Yes. BlueAir only produces one set of 3 filters for the 500/600 series. If you go to their website, www.blueair.com you can read about their HEPASilent Technology. The old original blueair filters used to also have an activated charcoal layer as part of the standard filter. They have done away with that extra layer. If you want to filter cigarette smoke they have another smoke filter series called SmokeStop. The original SmokeStop filters had some extra type of ingredients to filter out VOCs etc. The new non SmokeStop filters don't have the activated charcoal layer so it doesn't filter out any VOCs at all. The old ones used to be able to filter out fumes from new carpet out gassing etc, but not the new ones. Older was better. Just another way to make more money now, ha,ha. We have no choice but to purchase what they offer. Anyone at BlueAir listening?

my Blue air 501 machine takes 3 filters. Is this only 1 filter or the 3 that it needs?

It was a little confusing at first, but the full read to RECOMMENDED to change filter once every 6 months, or dependent on usage. This filter can be recycled after it's changed. The 500/600 Series air purifiers use 3 separate filters, this replacement pack contains a set of 3 filters." It says that it contains the pack / the set of three. These are the dual protection filters. I use the regular ones that are around $79.

Hi, can these be used in the Blueair 680i model? Thanks!

Blueair 500/600 series models should all use the same size filter. If you read the description, it said compatible with 680i.

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BLUEAIR Classic 500/600 Series Genuine Dual Protection Replacement Filter; fits Classic 580i, 680i, 501, 503, 505, 510, 550E, 555EB, 601, 605 (3 pack)

BLUEAIR Classic 500/600 Series Genuine Dual Protection Replacement Filter; fits Classic 580i, 680i, 501, 503, 505, 510, 550E, 555EB, 601, 605 (3 pack)

Product ID: 283336640

Details

Brand
BLUEAIR
Compatible devices
Classic 580i
Item weight
0.45 Kilograms
Material
Carbon Fiber
Product dimensions
33L x 23.6W x

⚡Up to 4x faster pollutant removal vs. other carbon filters

🌀No CADR reduction with advanced particle & gas filtration

🌿Activated coconut carbon layer for natural odor removal

€ 384.16

Duties & taxes included

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Breathe smarter, live cleaner — upgrade your air game now!

4 X FASTER CLEAN AIR - Removes smoke, VOCs, and airborne chemicals up to four times faster than standard carbon filters
HEPA SILENT OPTIMIZED - Captures pollen, dust, pet dander, mold spores, viruses, and bacteria without sacrificing airflow
DUAL PROTECTION POWER - Combines high-porosity coconut carbon + particle filter for ultimate odor & pollutant elimination
SUSTAINABLE EFFECTIVE - Pleated design with sustainably sourced coconut carbon maximizes filter surface area and performance
PERFECT FIT PROVEN QUALITY - Genuine Blueair replacement ensures your Classic 500/600 series purifier runs at peak efficiency

The Blueair Classic 500/600 Series Dual Protection Replacement Filter pack (3 filters) is engineered for professional-grade air purification. Featuring a high-porosity activated coconut carbon layer and advanced particle filtration, it removes odors, VOCs, smoke, and microscopic pollutants up to 4x faster than typical carbon filters. Designed for seamless compatibility with multiple Blueair Classic models, these pleated filters maintain optimal airflow and clean air delivery rate, ensuring your environment stays fresh and healthy with biannual replacements.

Specifications

ASIN	B07KRKZH24
Air Filter Construction	Pleated
Best Sellers Rank	#87,757 in Kitchen ( See Top 100 in Kitchen ) #673 in Air Purifier Filters
Brand	BLUEAIR
Brand Name	BLUEAIR
Common Applications	Residential, Appliances
Compatible Air Purifier Models	Blueair Classic 505
Compatible Devices	Classic 580i, 680i, 501, 503, 505, 510, 550E, 555EB, 601, 605
Compatible Hvac Systems	residential
Compatible devices	Classic 580i, 680i, 501, 503, 505, 510, 550E, 555EB, 601, 605
Customer Reviews	4.4 out of 5 stars 380 Reviews
Filter Shape	Rectangular
Global Trade Identification Number	00689122012001
Item Dimensions L x W x Thickness	33L x 23.6W x 6.9Th centimeters
Item Type Name	Air Purifier Filter Replacement
Item Weight	0.45 Kilograms
Item weight	0.45 Kilograms
Manufacturer	Blueair
Manufacturer Part Number	501DPF
Material	Carbon Fiber
Material Type	Carbon Fiber
Model Number	501DPF
Number of Items	1
Number of Packs	1
Product Grade	new
Product dimensions	33L x 23.6W x 6.9Th centimeters
UPC	689122012001
Unit Count	3 Count
Warranty Description	N/a.

Reviews

P**R

Worth the Price

Pricey but great quality. Keeps the Classic Blueair working like a charm.

7.03.2026

K**N

Best Price on Amazon

I've been using these filters for about 8 years. They are really good and normally more expensive elsewhere.

23.04.2024

P**P

My allergies are much improved

Excellent filter

15.06.2026

T**D

Clean Air Filters

Fit perfectly! No issues to date. Because of where we live, we only have to replace our filters every two years so these are worth the investment. I was surprised when I pulled out the old filters at all the dust they had accumulated. The air cleaner and filters work well.

13.03.2025

M**L

Best filter

The best one so far Clean the air very good.

26.11.2019

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