Why it matters
The MEGAWISE 3.5L Top-Fill Humidifier is an ultrasonic humidifier with a 3.5 liters tank, rated for 480 square feet.
Aim for 40 to 60 percent relative humidity indoors: drier air irritates airways and skin, wetter air feeds dust mites and mold. Use distilled or demineralized water to avoid the white mineral dust ultrasonic mist leaves behind.
The listing names a top-fill tank.
Top-fill tanks are filled from above without carrying the tank to a sink, which also makes them easier to wipe out.
A full tank holds about 3.5 liters, which adds roughly 8 pounds of water to carry or lift (filled in place from the top).
Its tank of 3.5 liters is below the middle of the range we cover: 21 of the 78 humidifiers with a stated figure come in lower, and the range runs from 0.7 liters to 20.1 liters.
Price-wise it sat in the cheapest third of the 74 ultrasonic models we cover when we checked; the button shows today's price.
It qualifies for our list Best Cool Mist Humidifiers, where it is ranked against every model that meets the same rule.
Compared with the MEGAWISE SK7620 Humidifier: rated room size 480 square feet here vs 250 square feet.
Who it's for, and who should skip it
Good fit if
- Dry winter bedrooms
- Owners who will clean it weekly
Look elsewhere if
- Rooms far larger than its rating
Pros and cons
Pros
- 3.5 liters tank
- Rated for 480 square feet
Cons
- Needs regular cleaning to stay hygienic
- Ultrasonic mist leaves white dust with hard water
Limitations to weigh
- Not stated on the MEGAWISE 3.5L Top-Fill Humidifier listing: run time per fill, noise level, power draw. Ask the seller or check the manual before relying on it.
Specifications
The bracket shows where each figure comes from.
| Model number | H1 | Retailer |
|---|---|---|
| Room coverage | 480 square feet | Retailer |
| Capacity | 3.5 liters | Retailer |
Alternatives worth comparing
More room humidifiers we cover
Final verdict
A practical choice for dry winter bedrooms. Confirm the model it fits before ordering.
Where to buy
Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure