{{ 'fb_in_app_browser_popup.desc' | translate }} {{ 'fb_in_app_browser_popup.copy_link' | translate }}

{{ 'in_app_browser_popup.desc' | translate }}

Dyson BP04‧Purifier Big+Quiet Formaldehyde purifier ‧2-year limited warranty‧

✔️ Register as a Sun Rich member now to enjoy member exclusive price

{{shoplineProductReview.avg_score}} {{'product.product_review.stars' | translate}} | {{shoplineProductReview.total}} {{'product.product_review.reviews' | translate}}
{{amazonProductReview.avg_rating}} {{'product.product_review.stars' | translate}} | {{amazonProductReview.total_comment_count}} {{'product.product_review.reviews' | translate}}
* Due to the shortage of supply, please call 91406664 to check inventory before placing an order,This item will be ordered from supplier after we receive your order ,Arrival in about 2 to 5 working days 。
{{ title.name_translations | translateModel }} : {{variationName[$index] | translateModel}}
Add to Wishlist
The maximum quantity per submit is 99999
This quantity is invalid, please enter a valid quantity.
Sold Out

Not enough stock.
Your item was not added to your cart.

Not enough stock.
Please adjust your quantity.

{{'products.quick_cart.out_of_number_hint'| translate}}

{{'product.preorder_limit.hint'| translate}}

Limit {{ product.max_order_quantity }} per order.

Only {{ quantityOfStock }} item(s) left.

Please message the shop owner for order details.
Add to Wishlist


Projects air over 10m. Quietly1. Purifies up to 1,000 ft² spaces.2

Captures bacteria3, viruses4 & allergens and 99.95% of ultrafine particles.5

Exclusive K-Carbon filter removes gases and odours.6 Captures 3x more NO2. 17 HEPA H13 filter lasts for 5 years8.

Detects and destroys formaldehyde, permanently.7
Senses and reports CO2 levels in real-time.

Long-range projection over 10m and circulation
Our latest purifier uses cone aerodynamics to deliver powerful, long-range projection – circulating air and driving even distant pollutants back through sealed filters. For whole-room purification, even in large spaces up to 1,000 ft².
Dyson Purifier Big+Quiet Formaldehyde in a large space.

Quiet1, even at full power
An acoustically engineered motor bucket records just 56dBA of sound power at full-speed. With no compromise on performance.
Dyson Purifier Big+Quiet Formaldehyde in a living space.

Adjust your airflow
Adjust the angle of airflow at 0°, 25° or 50°, or mimic the feeling of refreshing air indoors using Breeze mode.
The Dyson Purifier Big+Quiet Formaldehyde's airflow.

Control your air quality wherever you are
The MyDyson™ app gives you autonomy over your air quality. View which particles have been captured, set schedules, browse reports, and more.11
於咖啡店中使用 MyDyson 應用程式。

Auto mode
With the Auto mode feature, your purifier can sense, capture and report on pollutants in your home in real-time. This saves energy – meaning it only purifies when needed.14
放大以顯示 Dyson Big+Quiet 甲醛空氣清新機的 LCD 屏幕。

Long lifetime filters
HEPA H13 filter lasts for 5 years8; Carbon filter lasts for 2 years8; While catalytic filter lasts for a lifetime & never needs replacing.
A person opening the Dyson Purifier Big+Quiet Formaldehyde to access the filter.

Discreet wheels
Easily manoeuvre your machine across a room. Designed for hard surfaces, the wheels are completely hidden from view.
Zoomed-in to show discreet wheels on Dyson Purifier Big+Quiet Formaldehyde.

Smart home purification
Connect and then control your air quality, hands-free, with compatible smart home voice services.16

HEPA filter
Glass fiber HEPA filter
2-year warranty

156dBA at max speed.
2The ability of purifying a large room up to 100m2 (10m*10m) proven from a Computational Fluid Dynamics (CFD) modelling, with the purifier placed in a corner of the room running at the maximum flow and horizontal projection reaching over 10 metres to fully mix the room. The projection distance was measured from internal flow reach testing under the maximum directional airflow. The actual performance in real life condition may vary.
3Tested by 3rd party SGS, refer to GB 21551.3-2010 but tested against Staphylococcus albus, Staphylococcus aureus and Escherichia coli in a 30m³ chamber with machine speed 10 and airflow projection at 50° The actual result may vary in practice.
4Tested by 3rd party SGS, refer to GB/T 18801-2022 but tested against H1N1 virus & human coronavirus (229E & OC43) in a 30m³ chamber with machine speed 10 and airflow projection at 50° The actual result may vary in practice.
5Tested for filtration efficiency at 0.1 microns (EN1822, ISO29364).
6Tested to JEM 1467 (acetic acid, acetaldehyde, ammonia), GB/T18801 (formaldehyde, benzene) and DTM-003282 (NO2). Gas capture rates vary.
7Third 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.
8Filter 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.
9Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max Mode at IBR US, for whole machine efficiency above 99.95%.
10Tested on Korean BBQ, grilled salmon, cat urine, tobacco smoke and garbage odours.
11App functionality may vary per market. Requires Wi-Fi and app enabled device. Standard data and messaging rates may apply. Requires iOS version 10 or above, or Android version 5 or above. Your mobile device must have Bluetooth 4.0 support.
12Levels defined by Dyson based on scientific literature. Ventilation alert when CO2 levels are 1500ppm or above.
13In maximum setting. Tested for air projection (DTM 801) and purification coverage in a 81m3 room (TM-003711).
14In Auto mode.
15Vs. TP09.
16Refer to the MyDyson™ app for compatible smart home devices and voice services.
17Compared to adsorption by the standard carbon filter in Dyson Purifier Big+Quiet Formaldehyde (BP03).

Shipping & Payment

Delivery Options

  • 🛍️ Mong Kok Store Payment in Store And pick up ‧ 👉🏼✨ Business hours Monday To Saturday : 13 :00 - 21 :00 Sunday and Public holiday : 13 :00 - 19,:00
  • 🚪 Delivery service‧Hong Kong‧Kowloon‧New Territories‧
  • 🌉 Delivery service‧ Tung Chung‧ Ma Wan‧
  • 🌉 Delivery service‧Discovery Bay‧
  • ⛴️ Delivery service‧Macao‧
  • 🏃🏼 Courier Service Infantry Home Delivery ‧ Immediate Day ‧Freight Collect ‧
  • 🚐 Underground pickup for Call GoGoX‧fastest same day‧
  • 🛵 SF Express Delivery takes‧Local‧ 2 - 5days‧Freight collect‧
  • ⛴️ SF Express Delivery takes‧Macau‧ 3 - 5 days‧Freight collect‧

Payment Options

  • 💵 Cash
  • 📲 FPS
  • 📲 Octopus
  • 📲 Alipay (HK)
  • 📲 Wechat pay (HK)
  • 📲 PayMe (HSBC)
  • 🏧 Bank Transfer (ATM)
  • 💳 Credit Card‧Visa/MasterCard/Diners Club/UnionPay ‧SHOPLINE Payments
  • 💳 EPS (Applicable to stores only)
  • 💳 Visa/Master/JCB/ American Express /UnionPay (Applicable to stores only)
  • 📲 Apple Pay/Tap & Go/Google Pay/Samsung Pay/Huawei Pay (Applicable to stores only)

Customer Reviews

{{'product.product_review.no_review' | translate}}