10 Best Inexpensive Humidifiers 2025 in the United States

The LEVOIT Dual150 is a cool mist ultrasonic humidifier with a 3-liter water tank, suitable for rooms up to about 290 square feet. Its top-fill design makes refilling easy and reduces spills, which is great for quick maintenance. The 3-liter capacity allows it to run up to 25 hours on a single fill, meaning less frequent refills especially overnight. It operates very quietly, making it ideal for bedrooms, nurseries, or any space where noise might disturb sleep. A handy knob controls mist output, and the 360° adjustable nozzle lets you direct the moisture wherever you need it most.

This model also doubles as an essential oil diffuser, letting you add a pleasant scent to your room, and includes an optional night light to create a calming atmosphere. It comes with a pre-installed water filter and offers replaceable filters to maintain good performance and hygiene. On the downside, while cleaning is generally easy thanks to the wide opening, some users may find the plastic parts require regular care to avoid buildup. Also, although it covers small to medium rooms well, it might not be sufficient for larger living areas.

Its simple controls are intuitive but lack digital displays or smart features found in pricier models. For those seeking an affordable, quiet humidifier with decent capacity and added aromatherapy options, the LEVOIT Dual150 meets these needs effectively.

The LEVOIT LV600HH is an ultrasonic humidifier that offers both warm and cool mist options, making it versatile for different seasons or personal preferences. It covers a large area up to 753 square feet, which is quite generous for bedrooms or medium to large rooms. With a 6-liter water tank, it can run up to 50 hours without needing a refill, which is very convenient for overnight use or long periods. Noise levels are kept very low, and it has a special feature to turn off lights, helping you sleep undisturbed. This model also includes an auto mode with a built-in humidity sensor to maintain your preferred moisture level automatically. Another plus is the remote control, so you can adjust settings without getting up. Additionally, it supports essential oil diffusion for a pleasant aroma.

On the downside, while it is described as efficient and fast in humidifying, the unit weighs nearly 5 pounds and is somewhat large, which might make it less portable or harder to fit in small spaces. Cleaning requires hand washing, which can be a bit tedious given the size of the tank and the ultrasonic mechanism. Also, although it has good filtration with HEPA and carbon filters, these may need regular replacement, adding to maintenance costs. Taking into account its price range and features, this humidifier is a strong choice for those needing a powerful, quiet device that handles large rooms and offers customization but may be overkill or less practical for very small spaces or users wanting minimal upkeep.

The LEVOIT OasisMist 600S is a versatile ultrasonic humidifier suitable for medium to large rooms up to about 430 square feet. It features a generous 6-liter water tank that can run up to 60 hours without a refill, making it ideal for those who prefer less frequent maintenance. Users can select between warm and cool mist options, helping reduce white dust and providing safer warm mist temperatures, which benefits people with sinus issues or sensitive skin. Its noise-reduction technology ensures quiet operation, making it appropriate for bedrooms and living areas without disturbing sleep.

A notable feature of this model is its smart control capabilities. It can be managed remotely via an app, allows scheduling, and includes an auto mode to maintain humidity levels between 40% and 60%, a comfortable range for most individuals. The top-fill design with a wide opening simplifies refilling and cleaning compared to many other humidifiers, minimizing spills and hard-to-reach areas. Additionally, it has an aroma diffuser function that lets users add essential oils for a pleasant scent experience.

This humidifier is somewhat larger and heavier than simpler models, which might not be ideal for very small spaces or those seeking an ultra-compact device. While reasonably priced given its capacity and features, it may exceed the needs of someone looking for a basic, inexpensive humidifier. Maintaining regular cleaning is important to ensure healthy use and prolong the unit's lifespan, as is typical with most humidifiers. This LEVOIT model is a strong choice for those who want a quiet, large-capacity humidifier with smart controls and mist options, especially users who value automation and aromatherapy.