

BDT 12,990
Quantity
The Xiaomi Smart Air Purifier 4 is a powerful and intelligent air purification solution designed to ensure clean, healthy air for your home or office in Bangladesh. With a high PM CADR of 400m³/h and 360° all-round air intake, it can purify a 20m² room in just around 10 minutes. Featuring a three-in-one high-efficiency filtration system, negative air ionization, and smart app control, this purifier removes 99.97% of harmful particles such as dust, pollen, smoke, pet hair, and allergens. Its quiet operation and sleek design make it perfect for bedrooms, living rooms, and workspaces.
High-performance PM CADR up to 400m³/h
Effective coverage area of 28–48m²
360° all-round air intake for faster purification
Three-in-one filtration system removes 99.97% of 0.3μm particles
High-quality activated carbon for odor and VOC removal
Negative air ionization for fresher indoor air
Smart control via Mi Home / Xiaomi Home App
Voice control support with Google Assistant and Alexa
Real-time air quality monitoring with OLED display
Ultra-quiet Night Mode for disturbance-free sleep
Auto mode with high-precision laser sensors
Filter replacement reminders and child lock support
Item | Details |
Brand | Xiaomi |
Product Name | Xiaomi Smart Air Purifier 4 |
Product Type | Smart Air Purifier |
Particle CADR | 400 m³/h |
Effective Coverage Area | 28–48 m² |
Noise Level | ≤64 dB(A) |
Night Mode Noise | Approx. 32.1 dB(A) |
Dimensions | 250 × 250 × 555 mm |
Weight | Approx. 5.6 kg |
Filtration Efficiency | 99.97% of 0.3μm particles |
Filtration System | Primary Filter + High Efficiency Filter + Activated Carbon |
Display | OLED Touch Display |
Smart Control | App & Voice Control |
Power Source | Electric |
Color | White |



1 × Xiaomi Smart Air Purifier 4
1 × High-Efficiency Filter
1 × Power Cable
1 × User Manual
Q1: Is the Xiaomi Smart Air Purifier 4 original at GearyBD?
Yes, GearyBD sells 100% original Xiaomi products with authenticity guaranteed.
Q2: Do you deliver all over Bangladesh?
Yes, we offer fast and reliable delivery across Bangladesh.
Q3: Can I check the product before receiving it?
Yes, product checking is available before final delivery.
Q4: Do you provide after-sales support?
Yes, GearyBD offers responsive and reliable after-sales customer support.
Q5: Why should I buy from GearyBD?
Because of genuine products, competitive pricing, and trusted customer service.
Q1: Is this air purifier suitable for allergy sufferers?
Yes, it effectively removes pollen, dust, pet dander, and allergens.
Q2: How fast does it purify a room?
It can purify a 20m² room in approximately 10 minutes.
Q3: Is it noisy during operation?
No, it is very quiet, especially in Night Mode at around 32.1 dB(A).
Q4: Can I control it remotely?
Yes, you can control it via the Xiaomi Home App and voice assistants.
Q5: How often does the filter need replacement?
The filter typically lasts 6–12 months depending on usage and air quality.