Blueair Classic 405 Air Purifier
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- Unique Blueair HEPASilent Technology
- Eliminating allergy and asthma source
- Easy-to-read LED icons
- Free Blueair Best Friend app
- Quiet, powerful yet energy-efficient







Refund policy
Return & refund policy
Last updated: October 21st, 2021
Return and exchange is applicable to the following conditions:
Product Defect
- Delivered within 7 days (Not applicable to Apple products);
- A certified product quality problem;
- The application must be a product of the same model and the same color as originally purchased;
- If the product is a discontinued or outlet item, J SELECT will offer the customer a refund of the purchased amount;
- Damage caused by personal accident are not applicable;
- Personal care products, food and healthcare products, headsets, earphones and watches are not applicable;
- Application without accompanying required supporting documents or information as stated below (“Supporting Documents”) is not accepted.
- The product to be returned may require to be inspected by authorized dealer and issue an inspection report that certified a product quality problem. This policy applies to brands including but not limited to Nintendo, Samsung and XiaoMi.
- Refund and exchange is not applicable for all Apple products. Customers may visit the Apple Authorized Service Provider for product support and assistant with the original invoice issued by J SELECT during warranty period. All matters and disputes will be subject to the final decision of Apple Authorized Service Provider.
- Refund and exchange policies for Samsung home appliances products, please refer to “Additional Info” section in the product page.
Supporting Documents for the Application:
- Photo or video of the defective item;
- Product with complete original packaging;
- All product accessories and manual came with the original packaging;
- Product warranty card (a clean copy without filling in the information);
- Receipt of the purchase;
- Delivery invoice;
Application procedures:
- Describe the damage that has occurred by sending an email to cs@jselect.com
- For orders purchased at online (jselection.com and other 3rd party platform we operate), J SELECT will arrange collection of the product by a logistics company or you can simply return the product to our offline stores. However, prior to return the products to our stores, please bring along the email acceptance of the return and exchange received from our Customer Service department.
- For orders purchased at J SELECT offline stores, please visit our J SELECT offline stores for return and exchange.
Remarks:
- This Application applies to both J SELECT online and offline stores.
- Customer may contact our Customer Service hotline at 2926 2300 during service hours (Monday to Friday, 9:00am to 8:00pm, Saturday, 9:00am to 6:00pm).
- Customer may cancel online orders by sending an email to cs@jselect.com or contacting our Customer Service hotline before receiving delivery confirmation by call or email.
- J SELECT will charge a handling of 4% of the grand total of the order or HK$300, whichever is higher.
- In case of dispute, J SELECT reserves the right for final decision.
Overview Specification Review (0)
The new Wi-Fi enabled Blueair Classic 405 takes our incredibly popular air purifier and refines it even further. It still provides quiet, powerful yet energy-efficient air filtration for indoor air that is virtually free of allergy or asthma triggers. An updated digital display with touch-button control lets you see and control the air you breathe.

New! The new strong and silent
The new Wi-Fi enabled Blueair Classic 405 takes our incredibly popular air purifier and refines it even further. It still provides quiet, powerful yet energy-efficient air filtration for indoor air that is virtually free of allergy or asthma triggers. An updated digital display with touch-button control lets you see and control the air you breathe.
In touch with your clean air
Touch buttons on the control panel make your Blueair Classic 405 work tirelessly for you. Easy-to-read LED icons let you see the status of your air purifier’s Wi-Fi connection, operating speed and filter. Adjusting operation is easy. Just touch. Add our Blueair Aware monitor and download the free Blueair Friend app. This enables you to control the new Classic from afar, see room air quality and access outdoor air quality data in real time in most major urban areas.


Unique Blueair HEPASilent Technology
The new Blueair Classic 405 uses Blueair HEPASilent Technology to remove virtually all airborne pollutants. Using the best in electrostatic and mechanical filtration, our HEPASilent Technology is a revolutionary combination of advanced filter media and an encapsulated particle-charging chamber. This ensures that your Blueair purifier delivers results far superior than either mechanical or electrostatic technology alone.
Technical Specifications
Room size: 40m2 (434 sq ft)
CADR (Smoke): 476m3 per hour (280 cfm)
CADR (Dust): 510m3 per hour (300 cfm)
CADR (Pollen): 510m3 per hour (300 cfm)
Air changes per hour: 5
Dimensions (H x W x D): 590 x 500 x 275 mm (23 x 20 x 11 in)
Product weight: 14 kg (31 lb)
Energy consumption: 15 - 90 watts
Sound level: 32 - 52 dB(A)
Integrated air sensors: No
Remote control: Yes (via Blueair Friend App)
On/off timer: Yes (via Blueair Friend App)
Filter replacement indicator: Yes
Speed control options: 1 - 2 - 3
Casters: Optional
Air outlet: Side
Air inlet: Side
Wi-Fi connectivity: Compatible with 802.11 b/g/n router on 2.4GHz Wi-Fi Network band. Network security; open, WEP, WPA, & WPA2