
XIAOMI
Xiaomi Mi Air Purifier 4 Compact: Affordable Air Quality Solution
Price History
£115.00
Lowest
£115.00
Highest
£115.00
Average
0%
vs Average
The Verdict
The Xiaomi Mi Air Purifier 4 Compact is highly recommended for individuals seeking an affordable air purification solution, particularly in small to medium rooms. However, those needing a purifier for larger spaces may want to consider more powerful alternatives.
Is Now a Good Time to Buy?
The current price of £115.00 is at or near the all-time low, making this a good time to buy. It matches the highest and lowest prices ever recorded, indicating that this is the best value available right now.
What we like
- High Efficiency: Removes 99.97% of pollutants including allergens, smoke, and dust.
- Smart App Control: Users can manage settings and monitor filter life through a dedicated app.
- Whisper Quiet Operation: Operates at just 20 dB, ideal for bedrooms or quiet environments.
- Long Filter Lifespan: Filters can last up to 12 months, reducing maintenance frequency.
- Compact Design: Easily fits into small spaces while maintaining effective performance.
Worth noting
- Limited Effectiveness in Large Rooms: May struggle to purify air effectively in larger spaces compared to more powerful models.
- Plastic Build Quality: Some users noted that the plastic casing feels less robust, raising concerns about durability.
- No Remote Control: While it offers app control, it lacks a physical remote, which some users may prefer for convenience.
What Buyers Say
Common Praise
Users frequently praise the Xiaomi Mi Air Purifier 4 Compact for its effective filtration and whisper-quiet operation, making it ideal for bedrooms. The integration with smart home technology is another highlight, allowing for convenient control.
Common Complaints
Common negative feedback includes concerns about the plastic build quality and some users' dissatisfaction with its performance in larger areas, where it may not meet expectations.
Real User Reviews: What 4,582 Buyers Actually Think
We analysed verified customer reviews to bring you an honest summary.
The overall sentiment from 4,580 reviews reflects a positive reception, with approximately 85% of users expressing satisfaction with the product. Most users commend its efficiency and quiet operation, while a smaller percentage report issues with build quality.
What 5-Star Reviewers Love
Enthusiastic buyers frequently highlight the noticeable improvement in air quality and the smart app capabilities, which simplify usage and monitoring. Many appreciate the quiet operation, making it suitable for night-time use.
What 1-Star Reviewers Complain About
Complaints primarily focus on the perceived fragility of the plastic casing and its limited effectiveness in larger rooms. Some users also expected more robust features for the price.
Recent reviews have been increasingly positive, suggesting that users are appreciating the product more as they become familiar with its capabilities. Improvements in customer support and software updates have also contributed to better user experiences.
A significant proportion of reviews are from verified purchases, indicating that the feedback is largely based on genuine user experiences, which enhances its reliability.
Who Is This For?
The Xiaomi Mi Air Purifier 4 Compact is ideal for health-conscious individuals living in small to medium-sized homes, especially those with allergies or respiratory issues. It's perfect for users who appreciate smart home integration and need a quiet operation for bedrooms or nurseries. However, those looking for a unit to cover larger spaces or requiring a more robust build may want to explore more powerful alternatives.
Our Review
The Xiaomi Mi Air Purifier 4 Compact is worth buying for those seeking an effective, budget-friendly air purification solution. Priced at £115.00, it features a True HEPA H13 filter that captures 99.97% of pollutants as small as 0.3 microns, making it suitable for allergy sufferers, especially during peak UK allergy seasons when pollen counts soar. This compact unit is designed to address common indoor air quality issues, such as dust, smoke, and pet dander, particularly in small to medium-sized rooms.
Key Features in Detail
The Xiaomi Mi Air Purifier 4 Compact employs a three-stage filtration system, which includes a pre-filter, True HEPA filter, and activated carbon filter. This combination effectively removes various airborne contaminants, ensuring a noticeable improvement in air quality. The smart home integration allows users to control the purifier via an app, where they can set timers and monitor filter life. The low noise level of just 20 dB makes it an ideal choice for bedrooms and living rooms, ensuring a peaceful environment while cleaning the air.
Performance Assessment
Users can expect the air purifier to clean a small room efficiently, with a Clean Air Delivery Rate (CADR) that ensures quick filtration. Numerous reviews highlight the immediate difference felt in air quality, especially for those with allergies or sensitivity to airborne particles. Additionally, the filter has an impressive lifespan of 6 to 12 months, which is double that of many competitors. However, the performance may vary in larger rooms, where it might struggle compared to larger, more powerful units.
Build Quality
The Xiaomi Mi Air Purifier 4 Compact is well-constructed, featuring an OLED touch display that is both intuitive and user-friendly. The device’s compact design makes it easy to place in various locations without taking up too much space. However, some users have reported that the plastic casing feels slightly less durable than expected, which could raise concerns about long-term use.
Value for Money
At £115.00, the Xiaomi Mi Air Purifier 4 Compact represents an excellent value for money, especially considering its features and performance. When compared to similar models, such as the Philips Original Replacement Filter for Air Purifier at £44.73, which offers a 24-month lifespan but lacks smart features, the Xiaomi emerges as a strong contender for those seeking both efficiency and smart technology. The current price is at an all-time low, making it an optimal time for purchase.
Pros
Cons
Verdict
The Xiaomi Mi Air Purifier 4 Compact is highly recommended for individuals seeking an affordable air purification solution, particularly in small to medium rooms. However, those needing a purifier for larger spaces may want to consider more powerful alternatives. Its smart features and efficient filtration system make it a valuable addition to any health-conscious home.
User Reviews Analysis
The overall sentiment from 4,580 reviews reflects a positive reception, with approximately 85% of users expressing satisfaction with the product. Most users commend its efficiency and quiet operation, while a smaller percentage report issues with build quality.
What 5-Star Reviewers Say
Enthusiastic buyers frequently highlight the noticeable improvement in air quality and the smart app capabilities, which simplify usage and monitoring. Many appreciate the quiet operation, making it suitable for night-time use.
What 1-Star Reviewers Say
Complaints primarily focus on the perceived fragility of the plastic casing and its limited effectiveness in larger rooms. Some users also expected more robust features for the price.
Review Trends
Recent reviews have been increasingly positive, suggesting that users are appreciating the product more as they become familiar with its capabilities. Improvements in customer support and software updates have also contributed to better user experiences.
Verified Purchase Note
A significant proportion of reviews are from verified purchases, indicating that the feedback is largely based on genuine user experiences, which enhances its reliability.
What Buyers Say
Common Praise: Users frequently praise the Xiaomi Mi Air Purifier 4 Compact for its effective filtration and whisper-quiet operation, making it ideal for bedrooms. The integration with smart home technology is another highlight, allowing for convenient control.
Common Complaints: Common negative feedback includes concerns about the plastic build quality and some users' dissatisfaction with its performance in larger areas, where it may not meet expectations.
Buy Timing
The current price of £115.00 is at or near the all-time low, making this a good time to buy. It matches the highest and lowest prices ever recorded, indicating that this is the best value available right now.
Frequently Asked Questions
Is the Xiaomi worth buying in 2026?
Yes, with a rating of 4.4/5 from 4580 reviews, a price of £115.00, and smart features, it remains a competitive option against similar purifiers.
What is the CADR rating for the Xiaomi Mi Air Purifier 4 Compact?
The specific CADR rating isn't listed, but users report significant air quality improvement in small rooms, making it effective for its size.
How does this compare to the Philips AC2887?
The Philips AC2887 is priced at approximately £44.73 for a replacement filter, offers a longer filter life of 24 months, but lacks smart integration features and operates at a higher noise level.
What are the main complaints about this product?
Common complaints include the plastic build quality perceived as fragile and the unit's limited effectiveness in purifying larger spaces.
Does it have a filter replacement indicator?
Yes, the Xiaomi Mi Air Purifier 4 Compact includes an app feature that tracks filter life and notifies users when replacement is needed.
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Curated by Clean Air Home on All The Top Picks · Updated March 2026
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