Xiaomi Mi Air Purifier 4 Review: Should You Choose This Over Dyson and Philips?

Hello everyone, welcome back to HonestReview.in once again. Today, we are going to talk about one of Xiaomi’s most popular and refined air purifier, that is: the Xiaomi Smart Air Purifier 4. In today’s time where pollution and dust levels are rising rapidly, especially in Indian cities like delhi, mumbai etc, having clean indoor air has become a basic need.

But since brands like Dyson and Philips already dominate the premium purifier market, the common question is: Can Xiaomi really compete with them in real usage, or is it just hype?

So in today’s detailed review, I will explain everything clearly based on its real specifications and usage experience. By the end of this article, you will understand whether this purifier is worth buying or not. So let’s get started.

How is the Design and Build Quality?

So if we talk about its design and build quality, the Xiaomi Smart Air Purifier 4 comes in a sleek, minimal, and modern look. Its dimensions are 250 × 250 × 555 mm, and with a weight of just 5.6 kg, you can easily move it anywhere like whether it’s bedroom, living room, or office.

The matte white body gives a clean premium touch, and its 360° air intake vents make the purifier both stylish and practical at the same time. Even though it comes in a budget-to-midrange segment, the design feels much better than many overpriced models.

If we compare it with other brands, Dyson uses a premium bladeless design and Philips models look bulkier. Xiaomi keeps things minimal, simple, and modern, which is perfect for people who want appliances that blend easily with their home.

How is the Filtration Quality and Purification Performance?

Now let’s talk about the most important part, which is the filtration performance. The Xiaomi Smart Air Purifier 4 offers a PM CADR of 400 m³/h, which is powerful enough to clean medium to large rooms very quickly. It covers around 28 to 48 m², which means it is suitable for almost all Indian bedrooms and living rooms.

If I talk about its filter quality, so it can remove various things like:

• PM2.5 pollutants
• Allergens
• Smoke
• Hair
• Pet dander
• Dust particles
• And even ultra-tiny pollutants up to PM0.3

In real usage, you can notice the air quality improving within a few minutes of turning it on. If you live near traffic areas, construction zones, or polluted city environments, the difference becomes noticeable very quickly.

Now comparing this with Dyson and Philips:

• Dyson gives slightly better purification and stronger airflow, but the price difference is huge.
• Philips also gives premium filtration, but again, the price is higher.
• Xiaomi offers around 85–90% of the premium performance, but at almost half the price.

So in terms of pure value, Xiaomi is ahead.

How is the CADR, Coverage, and Airflow Efficiency?

If I talk about its real-world efficiency, so with a 400 m³/h CADR, the purifier can clean a room in approximately 10–15 minutes, depending on room size and pollution levels.

The purifier adjusts its fan speed automatically based on the detected pollution, so it doesn’t make unnecessary noise.

For most apartments, bedrooms, and living rooms, this purifier is more than enough. Only in extra-large halls or open spaces, Philips or Dyson might handle the volume better. But for typical homes, Xiaomi works perfectly.

How is the Noise Level and Daily Comfort?

Since many people keep purifiers running even while sleeping, noise becomes a major factor. The Xiaomi Smart Air Purifier 4 produces around ≤ 64 dB(A) at the highest speed. But in Sleep Mode and Auto Mode, the sound is soft and constant like almost unnoticeable.

Dyson’s turbo mode can get loud. Philips stays quiet but some models make a mild humming noise. So if you want a purifier that works quietly in the background, especially at night, Xiaomi does a great job.

How is the Smart Features and App Control?

This is another area where Xiaomi shines. The purifier connects to the Mi Home app, and the experience is smooth and beginner-friendly.

Through the app, you can get features like:

• Turn the purifier on/off
• View real-time AQI and PM2.5 levels
• Switch between modes (Auto / Sleep / Manual)
• Check filter life
• Set timers
• Use Google Assistant or Alexa voice control

Dyson has more advanced smart features, but its systems are more complex and the purifier itself is very expensive. Philips also supports app control, but its interface is not as smooth as Xiaomi’s. So for smart features in this price range, Xiaomi is clearly the best option.

How is the Filter Life, Maintenance, and Running Cost?

The purifier comes with one filter installed, and it usually lasts between 8–12 months, depending on how polluted your area is. Replacement filters are quite affordable compared to Dyson, whose filter replacements can cost nearly as much as a Xiaomi purifier itself.

Maintenance is also extremely simple:

• Open the back panel
• Remove the old filter
• Insert the new one
• Close the panel

No technician needed, no complicated parts, it’s just easy for anyone to handle. For long-term usage and low running cost, Xiaomi clearly wins again.

How is the Energy Consumption?

Now if I talk about its power usage, the Xiaomi purifier is very efficient. Even if you run it for long hours or 24/7, it does not consume too much electricity. It stays cool and doesn’t overheat.

Dyson consumes more power especially when used as a fan+purifier. Philips is also slightly higher in watt usage compared to Xiaomi. So Xiaomi is the best option if you want low electricity bills.

Indian Price of Xiaomi Mi Air Purifier 4

Now let’s see what is the price of Xiaomi Mi Air Purifier 4. This is the only one factor in which people finally decide whether to consider any product or not. So the Xiaomi Mi Air Purifier 4 comes in the price range of ₹18,000 to ₹22,000 as per most e-commerce websites like Flipkart, Amazon and other trusted sellers.

Generally, these prices are reliable in the offline market too. So if you are getting the Xiaomi Mi Air Purifier 4 within our mentioned price range, then you can consider buying it. If any seller demands more, it means they are overcharging. So make decisions smartly

Should You Choose Xiaomi Mi Air Purifier 4 Over Dyson and Philips?

In my honest opinion, yes, the Xiaomi Smart Air Purifier 4 is definitely a great choice if you want a powerful purifier without overspending. It delivers strong purification with 400 m³/h CADR, covers 28–48 m², stays quiet, gives excellent app support, and has very low maintenance cost.

Where as Dyson and Philips are better in some premium features, but for most Indian homes, Xiaomi gives more than enough performance at a much lower price.

If you want clean, fresh, and healthy indoor air daily without burning your pocket, then the Xiaomi Smart Air Purifier 4 is definitely worth buying.

Xiaomi Smart Air Purifier 4 Quick Specifications Table

Here is the complete specifications you might need to decide whether this air purifier is suitable for your room size and usage.

Xiaomi Smart Air Purifier 4 Frequently Asked Questions (FAQ)

Here are the most commonly asked questions about the Xiaomi Smart Air Purifier 4 based on its specifications.

Our Note:

Alright, so this was the complete and detailed review of the Xiaomi Smart Air Purifier 4 in the simplest and clearest way possible. We covered everything that truly affects your daily usage like from its design, filtration quality, CADR performance, noise levels, smart features, maintenance cost, and energy consumption to its actual Indian pricing so that you can decide whether this purifier is the right choice for your home or not.

If you still have any questions regarding this purifier, feel free to ask in the comments section. We reply to every genuine query and try our best to guide you in the right direction. Thank you for reading this review, and we will meet again soon in another helpful and interesting article.

“Keep Reviewing, keep exploring!”