The Dyson Purifier Big+Quiet Formaldehyde is our biggest purifier yet, engineered from the ground up, to evenly purify large spaces.¹ Cone aerodynamics creates a condensed jet of air to project purified air over 32 feet. Quietly. An advanced 360 HEPA H13 grade filter captures allergens and 99.97% of fine particles.4 Removes gases and odors.² Destroys formaldehyde, permanently.³ ¹Testing for PM2.5 purification completed in a large testing chamber following relevant Dyson testing methods. Results may vary in practice. ²Tested to JEM 1467 (acetic acid, acetaldehyde, ammonia), GB/T18801 (formaldehyde, benzene) and DTM-003282 (NO2). Gas capture rates vary. ³Third 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. 4Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max Mode for whole machine efficiency above 99.95%.
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The Dyson Purifier Big+Quiet Formaldehyde is our biggest purifier yet, engineered from the ground up, to evenly purify large spaces.¹ Cone aerodynamics creates a condensed jet of air to project purified air over 32 feet. Quietly. An advanced 360 HEPA H13 grade filter captures allergens and 99.97% of fine particles.4 Removes gases and odors.² Destroys formaldehyde, permanently.³ ¹Testing for PM2.5 purification completed in a large testing chamber following relevant Dyson testing methods. Results may vary in practice. ²Tested to JEM 1467 (acetic acid, acetaldehyde, ammonia), GB/T18801 (formaldehyde, benzene) and DTM-003282 (NO2). Gas capture rates vary. ³Third 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. 4Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max Mode for whole machine efficiency above 99.95%.
the best buy ever… it works from the first secound on perfect and helps to distribute and filter the air very well. no issues so far. on automatic and detects everything what should no be in the air and filters it.
We like everything about it. It does a very good job of filtration and airflow. We like the way it looks and visitors have commented on how good it looks. It is also quiet and easy to use..
Very quiet but like a fan on 50% - noticeable reduction in dust and dog fur/dander
I bought month ago Dyson Purifier Big Quiet Formaldehyde BP04 Prussian Blue/Gold and I am satisfied with this purchase.
I bought this a month ago for my mum when the haze just started. She sits in the living hall most of the day so got this purifier works as it covers a large area. She's loving it as it not only purifies the air but it generates cool air. Good buy
I bought this item about three weeks ago. It has proved reliable and effective, albeit that I don't find the control display very helpful and it takes up a vast amount of space. Generally happy but would prefer a more informative display and app interface isn't that great either. Good engineering but presentation could do with some work.
Awesome product, great coverage throughout our space, super quiet!
We love dyson
Amazing! Just days after receiving our two new big air purifiers—we were evacuated due to a wildfire near by. We have since been able to return home and are so grateful to Dyson for making this product. We have good air to breathe inside our house while outside air is terrible—at the low end of poor, even ashes are still falling. We have one purifier on each floor and everywhere has good air quality. Thank you 😊
Is good ! Bought it less than a month. Foul smell was rid off very soon than normal.
