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About the scoresThe scores are calculated mechanically by applying the criteria table at the end of the page to figures published on the manufacturers' official pages and manuals (and on retail or comparison pages where an official figure was not available). We call it the "Spec Score".
Spec Score #3Hybrid (heating + ultrasonic)
Best for a budget-friendly pick in a bedroom or personal room
3.06★★★☆☆Spec Score (out of 5)
See on Amazon¥8,020See on Rakuten¥7,900Price as of 2026-09-09 · affiliate link · Opens the shop's site
We could not open the Iris Ohyama official site, so the figures for this product come from retail and comparison pages (Amazon, Rakuten Ichiba, Kakaku.com, Askul, Kaunet) that match the exact model number.
Score Breakdown
Specs
| Method | Hybrid (heating + ultrasonic) |
|---|---|
| Room coverage | Wood-frame 6 tatami mats / Prefab 10 tatami mats |
| Max output | 350 mL/h |
| Tank capacity | about 4.5 L |
| Continuous run time | High (max) about 12 h |
| Power consumption | 40 W (heater on, mist High) |
| Care | Filter replacement: none specified (per retail page) |
| Extra features | Remote included, auto mode (target humidity 60% / 50%), timer (1 to 12 h), aroma-compatible |
| Size / weight | W230 × D165 × H312 mm, about 1.9 kg |
🙂 Good points
- The lowest price of the four at the time of listing (2026-09-09)
- Comes with a remote control
- The 4.5 L tank runs about 12 hours on High
🙁 Things to note
- Coverage is smaller than the others: 6 tatami mats wood-frame / 10 prefab
- The 350 mL/h max output is the lowest of the four
Sources
Amazon [retail page] ／ Kakaku.com [comparison site] ／ Rakuten Ichiba [retail page] ／ Askul [retail page] ／ Kaunet [retail page]
Scores are calculated only from specs published on official and retail pages.