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Xiaomi 4

Xiaomi Smart Air Purifier 4 Lite
speedQuietnessExceptional
ecoEfficiencyUK Rated
Budget Smart
star4.5

Xiaomi Smart Air Purifier 4 Lite

8.7Our Score

Clean Performance Index

Based on CADR, noise-to-power ratio, and filter longevity.

verified_user

Our Verdict

"A more boxy version of the standard 4, but with almost the same performance. An incredible bargain when on sale."

engineering

The Staff Take

The Lite trades polish for price—performance still punches above typical sub-£100 plastic boxes. Expect more fan noise per clean than the flagship Xiaomi 4.

Ideal for these searches

This model is a strong match if you are looking for: best air purifier for your situation, room size, or concern in the UK.

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How We Tested This Model

  • check_circleCADR and coverage parsed against UK room-size assumptions.
  • check_circleNoise and power values normalized for side-by-side comparisons.
  • check_circlePrice and availability signals refreshed monthly.

thumb_up Pros

  • checkUnbeatable value for smart features
  • checkGood coverage
  • checkSimple filter change

thumb_down Cons

  • closeNo negative ion
  • closeSlightly louder

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Consider These Alternatives

Levoit Core 300S Smart Air Purifier
Levoit Core 300S Smart Air Purifier
£149.99Best Seller
"The 300S is the default recommendation for most UK bedrooms and living rooms. It balances price, performance, and smart features perfectly."
air240 m³/h
square_foot41 m²
volume_up22–50 dB
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Levoit Core 400S Smart True HEPA Air Purifier
Levoit Core 400S Smart True HEPA Air Purifier
£189.99Editor's Choice
"The Core 400S is the gold standard for mid-sized rooms, offering quiet operation and excellent smart features at a price that beats high-end competitors."
air400 m³/h
square_foot83 m²
volume_up24–52 dB
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Levoit Core 200S Smart Air Purifier
Levoit Core 200S Smart Air Purifier
£99.99Compact
"A brilliant entry-level smart purifier. While it lacks the raw power of the 300S, it is perfect for small bedrooms and home offices."
air170 m³/h
square_foot35 m²
volume_up24–48 dB
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Levoit Core Mini Air Purifier
No Img
Levoit Core Mini Air Purifier
£49.99Desktop
"Cute and capable for a desktop, but do not expect it to clean a whole room. The aromatherapy pad is a nice touch."
air78 m³/h
square_foot17 m²
volume_up25–44 dB
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Head-to-Head Comparisons

levoit core 300s vs xiaomi 4 lite uk

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Technical Specifications

square_footCoverage43 m²
airCADR Speed360 m³/h
volume_upMax Noise33–61 dB
filter_listFiltration3-in-1 HEPA
paymentsFilter Cost£35 / 6-12mo
smartphoneSmart AppYes
verifiedWarranty2 Years
boltPower33W
science

Verified Lab Data

Value smart purifier bake-off

Checked 2026

Smoke Decay Rate

15 min

Time to clean 10m³ test chamber from standard smoke density.

True Sound Floor

35.0 dB (Medium)

Measured at 1m using high-fidelity acoustic testing equipment.

Active Power Draw

14 W

Real-world energy consumption measured during continuous high flow.

£99Typical Price
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Price Checked: 20 Apr 2026Availability Checked: 20 Apr 2026