SHARP

KI-RS50 Plasmacluster

4.4 Editorial rating
≈$221 Reference price (Japan)
Coverage 38 m²✓ HEPA filter

A humidifying air purifier with Plasmacluster 25000, an electrostatic HEPA filter and a double deodorizing filter, rated for up to 23 tatami (38 sqm) of air cleaning. It runs as quietly as 17 dB and auto-adjusts using dust and humidity sensors.

Pros

  • Both HEPA and deodorizing filters last about 10 years, keeping running costs low
  • 17 dB quiet mode is easy to use while sleeping
  • Built-in humidifier also handles winter dryness

Cons

  • No Wi-Fi or smartphone app connectivity
  • No dedicated pet mode

Where to buy

Sold in Japan only

*Prices are approximate. Check each store for the latest price.

Specifications

Coverage38 m²
HEPA filterYes
Activated carbonYes
CADR–
Min. noise17 dB
App controlNo
Air quality sensorYes
Pet modeNo

How we scored this

4.4/5 Fair valueHow we rate
CADR6.3
Coverage6.3
Min. noise10.0
HEPA filter10.0
Activated carbon10.0
Pet mode0.0
Air quality sensor10.0
App control0.0

Each dimension is scored 0–10 from public specs and weighted into the overall rating.

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≈$221SHARP
Where to buy