Cosmo COS-63ISS75 Lumin 30 in vs VIKIO HOME VK-RI31-30B 30 in

Last updated: November 9, 2026

The VIKIO HOME VK-RI31-30B 30 in is the better range hood overall, rated 3.6 to 3.4. The VIKIO HOME VK-RI31-30B 30 in leads on features. The Cosmo COS-63ISS75 Lumin 30 in costs $43.99 less ($386 vs $429.99).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Cosmo COS-63ISS75 Lumin 30 in vs VIKIO HOME VK-RI31-30B 30 in

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every island range hood; a clear win is highlighted. How we rank explains each one.

Factor weightVIKIO HOME VK-RI31-30B 30 inCosmo COS-63ISS75 Lumin 30 in
Overall rating3.6/53.4/5
Airflow 20%96 390 CFM92 380 CFM
Quiet at full speed 20%50 noise at full speed not published (neutral score used)50 noise at full speed not published (neutral score used)
Quiet at low speed 15%50 45 dB50 45 dB
Features 20%75 dishwasher-safe steel filters, LED lighting, 3 or more speeds, delayed shut-off, converts to ductless, gesture, remote or app control55 dishwasher-safe steel filters, LED lighting, 3 or more speeds, converts to ductless
Price 15%37 $429.9941 $386
Warranty 10%25 2-year warranty25 2-year warranty

Specifications

VIKIO HOME VK-RI31-30B 30 inCosmo COS-63ISS75 Lumin 30 in
Airflow and noise
Max airflow390 CFM380 CFM
Noise at low speed45 dB45 dB
Fan speeds33
Installation
MountIslandIsland
Width30 in30 in
VentingDucted or ductlessDucted or ductless
Power-Plug-in
Airflow cap for make-up air codesNoNo
Features
Grease filtersSteel baffleSteel baffle
LED lightingYesYes
ControlsTouch, gestureTouch
Delayed shut-offYesNo
Automatic fan speedNoNo
Build
Weight50.7 lb38.4 lb
Warranty2 years2 years

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