Xiaomi Smart Air Purifier 4
12,990৳
12 months warranty
Xiaomi Smart Air Purifier 4 – Smart Home Air Purifier in Bangladesh:
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.
Key Features
- 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
Specifications
| 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 |

What’s in the Box?
- 1 × Xiaomi Smart Air Purifier 4
- 1 × High-Efficiency Filter
- 1 × Power Cable
- 1 × User Manual
Why Buy from GearyBD?
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.
Why Buy This Product?
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.
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