Airthereal Ethereal Rain Air Purifier and Humidifier Combo Review

In a world where indoor air quality is more critical than ever, hybrid devices are becoming the ultimate smart home upgrade. The Airthereal Ethereal Rain promises to tackle both airborne particles and dry air in a single, elegant package. It’s an ambitious attempt to solve two of the most common household environmental issues with one efficient machine.

The appeal of a combination device is obvious: one plug, one footprint, one app to manage. The Airthereal Ethereal Rain leans heavily into this convenience, merging a capable H13 True HEPA air purifier with an ultrasonic cool mist humidifier. On the purification front, its three-stage filtration system—comprising a pre-filter, the H13 HEPA layer, and an activated carbon filter—does an admirable job of capturing dust, pet dander, pollen, and light odors. With a Clean Air Delivery Rate (CADR) of 150 CFM, it’s appropriately specced for small to medium-sized rooms, effectively circulating the air in a 355 sq. ft. space about four times per hour. In practice, its auto mode, driven by a PM2.5 laser sensor, is responsive, quickly ramping up the fan speed when it detects airborne irritants like cooking smoke or aerosol sprays.

As a humidifier, the Ethereal Rain performs reliably. The 1.7-liter top-fill tank is easy to refill, and the ultrasonic mechanism produces a fine, visible mist that can be adjusted across three levels. The built-in humidistat allows you to set a target humidity level (from 40% to 70%), and the device will automatically cycle the mist on and off to maintain it. Crucially, the purifier and humidifier functions can operate independently, giving you granular control over your environment. You can purify the air year-round and only add humidity during dry winter months.

From a design perspective, the Ethereal Rain is modern and unobtrusive. Its tall, cylindrical white chassis blends well into most decor without drawing undue attention. The build is primarily plastic, but it feels sturdy and well-assembled. The top-mounted touch control panel is intuitive, with a central LED display showing real-time PM2.5 and humidity levels, complemented by a color-coded light ring for at-a-glance air quality assessment. Smart home integration via the Airthereal app is the standout feature. The app provides full remote control, allowing you to set complex schedules, adjust settings, and monitor your air quality history from anywhere. Compatibility with Amazon Alexa and Google Assistant is the final touch that elevates this from a simple appliance to a true smart home component.

While the Ethereal Rain excels in consolidation, it’s not without its trade-offs. The convenience of a 2-in-1 unit comes with a larger physical footprint than a standalone purifier. And like all ultrasonic humidifiers, the tank and base require regular cleaning to prevent mineral and bacteria buildup, a task that can be a bit fiddly given the internal components. The auto humidity mode can also be a touch overzealous, sometimes pushing the room’s humidity slightly past the set target before shutting off. However, these are minor critiques of an otherwise thoughtfully designed product. For its price, it offers a compelling value proposition, often costing less than buying separate smart purifiers and humidifiers of similar capability.

The Airthereal Ethereal Rain is an excellent choice for anyone living in an apartment or small home who wants to tackle both air purity and humidity without cluttering their space with multiple devices. It’s particularly well-suited for the tech-savvy user who values app control, scheduling, and the convenience of a single, integrated solution for creating a more comfortable indoor environment.

Where to Buy:

Check it out on Amazon