US
PuroAir

PuroAir Air Purifier Filter

  • Item Weight: 0.78 pounds
  • Floor Area: 12.1 sq ft
  • Power Source: Corded Electric
  • Filter type: HEPA, Activated Carbon, Pre-Filter

Last refreshed Jun 15, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A two-pack that covers most of a year on PuroAir's own schedule, which is a shorter interval than most rivals ask for. Buy the pair rather than singles.

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ASIN: B0B6Y17GL3Model: 240Category: Air Purifier Filters

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Overview

A two-pack of genuine replacement filters for the PuroAir 240 purifier, each combining a pre-filter, a True HEPA layer and the brand's CarbonTech activated-carbon blend for odors. PuroAir rates them for replacement every three to four months, so two cartridges cover most of a year.

The three-to-four-month interval is the number worth focusing on. It is roughly triple the replacement frequency of a purifier running an annual cartridge, so the honest way to read the price of a two-pack is as most of a year's running cost rather than as the cost of a part. A shorter interval is not automatically worse - a filter changed often spends more of its life working efficiently - but it should be priced in.

  • Two genuine filters in the pack
  • Three layers: pre-filter, HEPA, carbon
  • Replace every three to four months
  • Made for the PuroAir 240 specifically

Who it's for

PuroAir 240 owners who would rather keep a spare on the shelf than reorder every quarter. Worth thinking twice about if you chose the purifier expecting appliance-style annual maintenance, because this is a consumable that needs attention several times a year.

Pros and cons

Pros
  • Two cartridges cover most of a year
  • Carbon layer built for odor removal
  • Frequent changes keep airflow consistently high
  • Genuine part with a two-year warranty
Cons
  • Three to four month interval is short
  • Running cost is higher than annual filters
  • Fits the PuroAir 240 only
  • Two packs a year still needed for most homes

Performance notes

The three to four month interval is the number that should drive the decision, not the filtration claim. A shorter service life is not automatically worse, since a filter changed often spends more of its time in the efficient part of its curve. It does mean the running cost is roughly triple that of a purifier on an annual cartridge, so the price per pack is worth reading as a price per year.

Where it stands among air purifier filters

  • #4 most-searched brand and model of the 22 air purifier filters lines we track (by search demand, not sales).

From the specs of the 36 air purifier filters we list; not a test result.

Specifications

BrandPuroAir
Model240
Dimensions & fit
Item Weight0.78 pounds
Item Dimensions D X W X H6.5 × 7.9 × 6.5 inches
Particle retention size0.1 Micron
Capacity & performance
Noise level22 dB
Power & efficiency
Power SourceCorded Electric
Construction & materials
ColorWhite
Compatibility & installation
Smart Home CompatibilityNot Smart Home Compatible
Included components
Unit Count2
Warranty & support
Warranty Description30 days
Other details
Floor Area12.1 sq ft
Filter typeHEPA, Activated Carbon, Pre-Filter
Control TypePush Button
Contaminant filtration capabilitydust, odors, pet_dander, pollen, smoke
Filter ClassHEPA Activated Carbon
Part NumberPA240
Controller TypeButton Control

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Frequently asked questions

How often does the PuroAir 240 filter need replacing?

PuroAir specifies every three to four months, which is a shorter interval than many purifiers ask for. The two-pack therefore covers most of a year.

What is in a PuroAir 240 filter?

Three layers in one cartridge: a pre-filter for larger particles, a True HEPA layer for fine airborne matter, and the CarbonTech activated-carbon blend aimed at odors.

Will this fit other PuroAir models?

It is sold specifically for the PuroAir 240. Check your model number against the filter before ordering.