PuroAir 240 Air Purifier: CADR, Noise, Coverage & Specs

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Last verified: Aug 23, 2026

Aug 2026

Quick verdict

The PuroAir 240 is best suited to rooms where published specs can be checked against your space where quiet minimum operation are priorities. Buyers should separately evaluate filter cost and maximum-speed noise before deciding.

Best for

  • Low-noise minimum settings

Consider alternatives if

  • You need a verified maximum-speed noise figure
  • Filter replacement interval or cost is a deciding factor

Verified strengths

  • 24 dB published minimum noise
  • HEPA filtration (as published)

Verified limitations or missing information

  • Maximum-speed noise is not in our sources
  • Filter replacement interval is not verified
  • Smoke CADR is not published

PuroAir 240 overview

The PuroAir 240 is an air purifier. It includes HEPA filtration and 24 dB minimum noise.

Minimum noise
24 dB
Filter type
HEPA
Last verified
Aug 23, 2026

PuroAir 240 CADR and room size

Our recommended room size uses approximately 4.8 air changes per hour with an eight-foot ceiling. Manufacturer coverage figures may use a lower air-change rate and are shown separately.

PuroAir 240 noise level

Published minimum noise is 24 dB.

Maximum-speed noise is not in our sources.

PuroAir 240 filtration

Published filter type: HEPA.

Filter replacement interval is not verified in our sources.

PuroAir 240 smart features

Air Quality Sensor & Indicator Light

PuroAir 240 specifications

Minimum noise
24 dB
Filter type
HEPA

About PuroAir air purifiers

PuroAir models in this catalog are compared by CADR, recommended room size, noise, and filter type.

PuroAir 240 comparisons

What is the CADR of the PuroAir 240?

CADR is not published for this model in our sources.

What room size is the PuroAir 240 suitable for?

Recommended room size cannot be derived because CADR is missing.

How loud is the PuroAir 240?

Minimum reported noise: 24 dB.

Does the PuroAir 240 have Wi-Fi?

No published Wi-Fi or app control in our sources.

What filter does the PuroAir 240 use?

HEPA.

Methodology

Specifications are compiled from manufacturer documentation, product listings and other cited sources.

How we calculate recommended room size.

Sources

All air purifiers · Best air purifiers for allergies · Methodology