10 Best Dehumidifiers With Air Purifier 2025 in the United States

The Frigidaire Gallery 2-in-1 50-pint dehumidifier is a strong choice for medium to large rooms or basements needing moisture control and improved air quality. It can remove up to 50 pints of moisture daily, which suits spaces up to about 4500 square feet. One helpful feature is its built-in air quality monitor, allowing you to keep track of indoor air conditions easily. You get the flexibility to control it remotely via a smartphone app or voice assistants like Alexa and Google Home, making it convenient to adjust settings from anywhere.

This model is Energy Star certified, meaning it uses electricity efficiently to help save on energy bills. It has a fairly large 2.11-gallon water tank, plus an option for continuous drainage, so you don’t have to empty the bucket frequently if you prefer. The unit works well even in cooler rooms, operating down to 41°F, which is useful for basements. The automatic shut-off feature adds safety by stopping the machine when the tank is full. The size and weight (about 44.5 pounds) mean it’s portable but not super light.

A potential drawback might be the price, which could be higher than simpler dehumidifiers without smart features. Also, while it includes an air quality monitor, it doesn’t have a full air purification system like some dedicated purifiers, so its air cleaning might be more basic. For users looking for a reliable, energy-saving dehumidifier with smart controls and added air quality insight, this model fits well. If your priority is strong air purification, a separate purifier might be worth considering.

The DINZAN 3-in-1 Smart Humidifier & Dehumidifier with Air Purifier is designed for spaces up to around 350 sq.ft, making it a good fit for bedrooms, small offices, or RVs. It offers a modest dehumidification capacity of 580ml per day, which is suitable for light to moderate humidity control but might struggle in very damp environments. The unit also adds value by including a humidifier and an air purifier with an ion emission feature that helps reduce dust, pollen, and odors, providing fresher air. Noise levels stay below 45dB, so it's quiet enough for overnight use without disturbing sleep.

The 800ml water tank is reasonably sized for this capacity, and there’s an automatic shutoff when the tank is full, along with a drainage hose option, which is convenient. The smart sensor can switch between humidifying and dehumidifying automatically, which is helpful to maintain healthy humidity levels between 40-60%, balancing comfort and health. Additionally, its compact size and touch controls make it easy to operate, and the 7-color LED can add a pleasant mood light.

The dehumidification capacity is on the lower side compared to some dedicated dehumidifiers, so it might not be ideal for very large or highly humid spaces. Also, while the air purification helps reduce dust and pollen, it lacks a true HEPA filter, so it may not be enough for those with serious allergy concerns. This combo device suits users who want an all-in-one solution for small rooms with moderate humidity and basic air cleaning needs, valuing quiet operation and smart features over heavy-duty dehumidification.

The Frizzlife Air Dehumidifier with Purifying Function is designed primarily for small spaces like bathrooms, bedrooms, basements, or RVs. Its semiconductor technology gently balances humidity instead of aggressively drying the air, which suits those who want a comfortable, stable environment rather than a very low humidity level. It can remove about 40 ounces (1.2 liters) of moisture per day, which is adequate for small areas but might be slow for larger or very damp rooms. The 135-ounce (about 4 liters) water tank is a standout feature, reducing how often you need to empty it and making it convenient for daily use.

Noise-wise, it’s very quiet, especially in sleep mode at 28 dB, so it won’t disturb your rest. This model also includes a 7-color night light and a negative ion release function, which helps reduce dust and freshen the air, adding a mild air purification benefit, though it’s not a dedicated purifier. Energy consumption at 80 watts is reasonable for this size. The unit is compact and portable without needing installation, which is great if you want flexibility.

The dehumidifier’s effectiveness depends heavily on room temperature and humidity, and you cannot set a target humidity level manually, which limits control. Its coverage area is quite small—about 45 square feet—so it’s not suited for larger rooms. The automatic shutoff and timer functions add convenience and safety. Semiconductor dehumidifiers generally work slower compared to compressor types, making this a better choice if you need a gentle, quiet solution for smaller spaces rather than rapid, heavy-duty moisture removal.