An affordable air purifier for large rooms
The Morento HY4866-WF ($259.99) is a Wi-Fi enabled smart air purifier designed for large rooms of up to 1,076 square feet. It uses two multi-layer HEPA filters to remove odors and up to 99.97% of airborne pollutants such as dust, smoke, pet dander, and formaldehyde. It supports Amazon Alexa and Google Assistant voice controls and performed well in our air cleaning tests, but it is relatively loud when operating at high speed and could use more smart features. It’s a good budget-friendly air purifier for large spaces, but in this price range, we prefer the Dreo Macro Max S ($239.99), which has a smaller recommended coverage area (up to 432 square feet) but works faster than the Morento HY4866-WF. Design and Features: Two Filters for Large-Room Coverage
The HY4866-WF uses a unique dual-filter design that draws air in from the front and the back of the unit, which, according to Morento, makes it effective for rooms of up to 1,076 square feet. Measuring 17.5 by 13.1 by 7.6 inches (HWD) and weighing 7.9 pounds, it’s fairly compact and lightweight, especially for an air purifier with such a large coverage area. It has a white finish with a gray air output grill on top and a handle on the back panel that makes it easy to move from room to room.
Around back is a sensor that measures the PM2.5 level (particles that are 2.5 microns or less in diameter). Some high-end models feature extra sensors for additional air quality insights, like the Dyson Big & Quiet BP03 ($999.99), which provides real-time readings for PM10 (10 microns or less in diameter), NO2 (formaldehyde), VOCs (Volatile Organic Compounds), and CO2 (carbon dioxide) levels.
The top of the purifier holds the air outlet grill and a control panel with buttons for power, fan speed (1 to 4), Auto Mode, an Auto-Off Timer, a Child Lock, and Sleep Mode. In Auto Mode, it will switch fan speeds according to the current air quality, and in Sleep Mode, it will operate at its lowest fan speed. The panel also has a filter reset button that will flash when it’s time to replace the filters. Press and hold this button for five seconds to reset the filter life monitor.
On the front of the purifier is an oval color display that shows the current PM2.5 level and has indicators for filter life and Wi-Fi status. Surrounding the display is an LED ring that glows green when the air quality is good (PM2.
