10 Best Inexpensive Humidifiers 2025 in the United States

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.

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 Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier is a solid choice if you're looking for an affordable, easy-to-use humidifier for medium-sized rooms (up to 250 square feet). Its 1.7-liter water tank allows for up to 25 hours of continuous mist, which means less frequent refills—convenient for overnight use or all-day comfort. It uses quiet ultrasonic technology, so it won't disturb your sleep or work, and the optional night light adds a gentle glow, making it suitable for bedrooms or nurseries. The humidifier also has simple touch controls and a 360° mist nozzle to help spread moisture evenly. One handy safety feature is the automatic shut-off when the water runs out or the tank is removed, giving peace of mind.

Cleaning is straightforward, especially with the included disk cleaning brush, though the tank size means you’ll need to refill more often than larger models. While it doesn’t come with a filter replacement system, it still effectively adds moisture to dry air, which can help with congestion, dry skin, and allergies. The compact oval design fits well on small surfaces like nightstands or desks. Given its low noise level, decent coverage, and reasonable price, this humidifier makes a great pick for bedrooms, offices, or plant care.

If you need to humidify larger spaces or want a model with advanced filters, you might want to explore higher-end options. The 5-year warranty is a reassuring bonus for such an inexpensive device.