Cleaner Air Guarantee in 100 day Filter Included
PuroAir 400 Air Purifier and 4 replacement filters
PuroAir 400 Air Purifier and 4 replacement filters
4.6 | 11,395 Reviews

Back to School Pro Bundle

4.6 | 11,395 Reviews
$521
$575 $521
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Take clean air to the next level with the PuroAir 400 Air Purifier plus 4 replacement filters, a full 15 months of coverage for larger spaces. Covering up to 2,000 sq ft, this bundle is ideal for classrooms, conference rooms, teacher lounges, family rooms, and other shared spaces where clean air matters most.
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Product Description

Breathe easier in bigger spaces this school year with the PuroAir 400 Air Purifier and 4 replacement filters. Delivering a full 15 months of clean air coverage.

Designed for classrooms, conference rooms, teacher lounges, family rooms, and open living spaces, the PuroAir 400 combines high-powered performance with quiet operation. With up to 2,000 sq ft of coverage, it’s the perfect solution for keeping the air fresh and healthy in large, shared environments.

What’s Included

  • 1 × PuroAir 400 Air Purifier (includes one filter)
  • 4 × Replacement Filters (15 months of coverage)

Key Features

  • Extra-Large Coverage: Cleans up to 2,000 sq ft, making it ideal for classrooms, common areas, and large rooms
  • 3-Stage Filtration: Pre-filter, advanced HEPA filtration layer, and CarbonTech™ for odors & smoke
  • Smart Auto Mode: Detects and adjusts fan speed automatically based on real-time air quality
  • Air Quality Sensor + Indicator: Instant feedback so you always know your air quality
  • Sleep Mode: Quiet operation for uninterrupted work, study, or rest
  • Family & Classroom Ready: Powerful yet energy-efficient design for daily use in busy spaces

Specifications

  • Model: PuroAir 400 (includes one filter)
  • Room Size Coverage: Up to 2,000 sq ft
  • Filter Life: Approx. 3–4 months each (4 filters = 15 months total)
  • Noise Level: As low as 35 dB in Sleep Mode
  • Dimensions: 14.4” H × 8.1” W × 21.5” D
  • Weight: 14.7 lbs
  • Warranty: 2 years with registration
View full details

AS SEEN IN

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FRESH AIR IN MINUTES

Get real results in just minutes. Our scientifically backed purifier filters particles before they can reach your lungs.

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Before
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After
*For illustrative purposes only.
PuroAir 400 Air Purifier Features Infographic

What's really in your home's air?

Allergens

Allergens

Sources:

Furry pets, dust mites

consequences:
  • Asthma
  • Reduced lung function
  • Cough
Annals of Allergy, Asthma & Immunology
Volatile Organic Compounds (VOCs)

Volatile Organic Compounds (VOCs)

Sources:

Cigarette smoke, recently dry-cleaned cloths, room deodorizers, paints, carpets

consequences:
  • Bronchial hyper-reactivity
  • Asthma
Wiley Online Library
Smoke

Smoke

Sources:

Tobacco smoke, vaping, incense, wildfires

consequences:
  • Premature mortality
  • Lung cancer
  • Coronary artery disease
  • Respiratory illness
National Center for Biotechnology Information
Mold Spores

Mold Spores

Sources:

Unattended plumbing leaks, leaks in building fabric, hidden food spills,

consequences:
  • Upper respiratory symptoms
  • Cough
  • Wheezing
  • Asthma
PubMed Central
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3 LAYERS OF DEFENSE

1

2

3

1

Pre-Filter

Filters larger particles like dust, hair, pollen, carpet fibers, and other visible debris.

2

PuroAir High Performance HEPA Filter

Filters up to 99.9% of air pollutants including allergens, pet dander and dust.

3

Activated Carbon Filter

Proprietary blend of activated carbon designed to filter odors, smoke, gases, and VOCs.

3 LAYERS OF DEFENSE

1

2

3

1

Pre-Filter

Filters larger particles like dust, hair, pollen, carpet fibers, and other visible debris.

2

PuroAir High Performance HEPA Filter

Filters up to 99.9% of air pollutants including allergens, pet dander and dust.

3

Activated Carbon Filter

Proprietary blend of activated carbon designed to filter odors, smoke, gases, and VOCs.

Comparison Chart:

Find the perfect Air Purifier or Bundle for your needs with the below comparison chart. Whether you would like cleaner indoor air quality at home, school or the office, we have you covered!

PuroAir 240
PuroAir 240
PuroAir 400
PuroAir 400
Whole Home Bundle
Whole Home Bundle
Whole Home+ Bundle
Whole Home+ Bundle
Who’s it for?

Smaller rooms, homes with room separation

Larger open spaces, ideal for larger residential spaces, or commercial spaces, higher ceilings

One main larger living space and one primarily used bedroom space

One main larger living space, and two separate bedrooms areas
What’s included?

1 qty PuroAir 240

1 qty PuroAir 400

1 qty PuroAir 240
1 qty PuroAir 400

2 qty PuroAir 240
1 qty PuroAir 400
Maximum Sq Ft

1,000 SQ FT Coverage1

2,000 SQ FT Coverage1

3,000 SQ FT Coverage1

4,000 SQ FT Coverage1
Wattage

45W

80W

See unit specs

See unit specs
Voltage

120V

120V

See unit specs

See unit specs
Decibel Range

Low : 22 dBs
High: 48 dBs

Low : 35 dBs
High: 60 dBs

See unit specs

See unit specs
Filter

240 Replacement Filter

400 Replacement Filter

240 Replacement Filter
400 Replacement Filter

240 Replacement Filter (2x)
400 Replacement Filter
Filter Subscription

$40.50

$58.65

$99

$134

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100-Day Cleaner Air Guarantee

Lifetime Warranty with Subscription

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In partnership with the American Lung Association

Because when you can’t breathe, nothing else matters.

  • Dedicated to making cleaner air more accessible in homes and communities
  • Supporting research and education that drive real impact
  • Collaborating to raise awareness about the connection between air quality and lung health
  • Reinforcing our shared mission to protect every breath, everywhere
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100 Day Cleaner Air Guarantee

Backed by our 100 Day Cleaner Air Guarantee

+ FREE 2 YEAR WARRANTY

We're absolutely confident that you'll adore your PuroAir! With our science-backed air purifiers and HEPA filters, we assure you that your home or office's air quality will be noticeably cleaner. And if by any chance you're not completely satisfied, we'll refund your money hassle-free. No questions asked! So, breathe easy knowing you're in good hands with PuroAir.

PuroAir Rewards

With every purchase, you’ll earn points that can be redeemed for exclusive discounts, products, and special surprises just for our loyal customers.

Start Earning Points Today!

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