SKU: 90370787298

Dyson HEPA Big+Quiet Formaldehyde purifier

Sale price$405.00 Regular price$450.00
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Description

Dyson HEPA Big+Quiet Formaldehyde purifierEngineered for professional environments, the Dyson HEPA Big+Quiet Formaldehyde purifier is Dysons quietest, most powerful air purifier yet. Three phases of purification capture 99. 97% of pollutants, as small as 0. 3 microns and the machine is fully sealed to HEPA H13 standard. The HEPA filter contains 69 feet of borosilicate microfibers, pleated over 450 times, and lasts 21,900 hours. A selective catalytic oxidization filter works to destroy

Engineered for professional environments, the Dyson HEPA Big+Quiet Formaldehyde purifier is Dyson’s quietest, most powerful air purifier yet. Three phases of purification capture 99.97% of pollutants, as small as 0.3 microns and the machine is fully sealed to HEPA H13 standard.¹ The HEPA filter contains 69 feet of borosilicate microfibers, pleated over 450 times, and lasts 21,900 hours.² A selective catalytic oxidization filter works to destroy formaldehyde, continuously³, and an intelligent CO₂ sensor system senses and reports CO₂ levels in real time displaying results on the 1.44 inch LCD screen. Cone aerodynamics to create powerful jets of air to project purified air around the room, and the purifier is acoustically engineered to operate at lower noise levels of just 55.6dBA at its highest power setting.

Caveats:
1. Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150.
2. Filter life is determined by dividing total dust load capacity by annual dust load. Annual dust load was calculated using GB/T 18801 daily mass formula. Results may vary in practice.
3. Third party full machine testing based on GB/T 18801-2022 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.

Features & Benefits:
Engineered for business environments
Whole-machine HEPA H13 filtration1
Destroys formaldehyde, continuously3
Intelligently senses and reports CO₂ levels in real time
360˚ HEPA, Carbon, and SCO filter
Sound power level: 44dBA at airflow setting 1, 55.6 dBA at airflow setting 2
Energy Star certified
Single-button operation
2 airflow settings
Fixed airflow direction at 50 degrees measured from the horizontal
1.44in LCD Screen
Weight: 25.5 lbs
Height: 32.7 inch
Depth: 17.1 inch
Width: 16.3 inch
Cord Length: 5.9 ft
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 90370787298

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Rema
Birmingham, US
★★★★★ 5
Perfect for Active Kids
Size: 4 Big Kid, Color: Black, Size: 4 Big Kid, Color: Black
My son loves these shoes. He says they’re really comfortable and lightweight, and he can run and play in them easily. So far they’ve held up well. He can fit them. Non Velcro and slip resistant.
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Reviewed in the United States on May 2, 2026
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Dana Duckworth
Port Orchard, US
★★★★★ 3
Good, but not great! Insert kept falling out.
Size: 3 Big Kid, Color: Black
I bought these for my 8 year old and the insert was loose and had to be played with multiple times before I could get it to stay in place. I eventually had to place a double sided sticky pad to get the insert to stay.
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Reviewed in the United States on June 8, 2026
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kathleen
Cuba, US
★★★★★ 5
Comfortable
Size: 3 Big Kid, Color: Dreamlike
Comfortable, pretty, easy to adjust for fit
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Reviewed in the United States on June 11, 2026
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Lou
Port Orchard, US
★★★★★ 5
a little roomy for narrow feet.
Size: 6 Big Kid, Color: Black/Black
Nice shoes. My little one has narrow feet so they are a little lose. Overall, a nice shoe.
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Reviewed in the United States on June 4, 2026
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KNE
Belleville, US
★★★★★ 5
comfortable
Size: 7 Big Kid, Color: Black/Black
super comfortable!
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Reviewed in the United States on May 30, 2026

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