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The Great Air Purifier Battle: Kyvol Versus Medify

Walter Shillington writes about products he knows firsthand. His articles focus on healthcare, electronics, watches, and household items.

The  Medify MA-14 and the Kyvol Vigoair P5 Air Purifiers

The Medify MA-14 and the Kyvol Vigoair P5 Air Purifiers

Those in the market to purchase an air purifier are confronted by a wide variety of choices. These devices range from small, inexpensive models designed to clean the air of a small room to large multi-filter units that can handle large areas with ease.

Today, I am reviewing a pair of air purifiers in the $100.00 range. Each of these devices is equipped with an H13 HEPA filter.



The Medify MA-14 is composed of black plastic and rectangular in shape. This device is 11 inches tall, 8.25 inches deep, and 8.25 inches wide. Air is sucked through vents located at the back and front of the unit and forced through an H13 HEPA filter. It is then expelled from the top of the air purifier.

The Kyvol Vigoair P5 is cylindrical in shape with a diameter of 8.26 inches. At 15 inches in height, it is noticeably taller than the offering from Medify. Air is drawn through perforations in the case, through a prefilter, an H13 HEPA filter, and out the top of the device.



8.26 x 15 inches

8.25 x 11 inches

Rated Power

18 Watts

26 Watts

Rated CADR

240 m³/h

120 m³/h

Room Size

Small to medium


Noise Level


55db max


Frame mounted, washable

Part of HEPA filter

Main Filter



Particle Removal

99.7 Percent

99.9 Percent

Night Light

Yes (illumination adjustable)





Child Lock



Fan Speeds



Visual Appeal

The Medify MA-14 fits unobtrusively in the background, working hard to keep the air clean while attracting little notice. The larger Kyvol unit, although still conservatively designed, was conceived to draw attention.

The Kyvol fits in well with my JBL sound system

The Kyvol fits in well with my JBL sound system

Control Panel

Those who have grown up with a cellphone clutched in their hand will welcome the touchscreen-type control panel mounted atop the Kyvol air purifier. From here, the unit can be turned on, and one of four fan speeds may be selected. There is also a timer, child lock, and a method of turning on and brightening the air purifier’s night light.

The more elderly—such as I—will more appreciate the three mechanical pushbuttons mounted to the front of the Medify MA-14. While the controls are limited to a power switch, a nightlight switch, and a button that selects one of four fan speeds, I like the loud and assertive click that accompanies every press of the selected button.

Kyvol control panel

Kyvol control panel

 Medify control panel

Medify control panel

The Prefilter

A prefilter is composed of a mesh-like fabric that allows airflow while trapping large particles such as dust, dirt, and hair. They should be cleaned regularly because a dirty prefilter will contaminate the associated HEPA filter and shorten its lifespan.

The Medify air purifier uses a HEPA filter with a layer of this fabric wrapped around it. They recommend that a soft cloth be used to wipe away the trapped particles when required. While this prefilter functions as intended, I am unsure if their suggested cleaning routine would be effective.

Kyvol has designed a prefilter consisting of two curved, fabric-covered frames. These prefilter elements slide snugly into the air purifier and fully enclose its HEPA filter. When required, the prefilters can be easily pulled from the air purifier and cleaned by holding them under tap water.

The Medify prefilter screen is wrapped around the main HEPA filter

The Medify prefilter screen is wrapped around the main HEPA filter

Kyvol utilizes two fabric-covered plastic frames as its prefilter

Kyvol utilizes two fabric-covered plastic frames as its prefilter

The Main Filter

Both air purifiers are equipped with an H13 HEPA filter that includes an activated carbon element. A prefilter is incorporated into the Medify's HEPA filter.

The larger Kyvol HEPA filter appears slightly yellow as it has been in use for about five weeks.

The larger Kyvol HEPA filter appears slightly yellow as it has been in use for about five weeks.


The Kyvol Vigoair P5’s CADR (clean air delivery rate) is rated at 240 cubed meters per hour. This figure denotes the amount of air that is cleaned of particles within one hour. The Kyvol air purifier can be used effectively in small to medium-sized rooms.

Medify’s air purifier has a CADR of 120 cubed meters. Its lower capacity is due to a slightly smaller HEPA filter and, I suspect, a smaller fan. It is intended for use in small rooms.

Noise Level

The Kyvol air purifier produces a noise level between 21 – 55db, depending upon the fan speed selected. The noise produced by the Medify unit in the first three settings is less obtrusive than that created by the Kyvol device. At its top speed, however, noise increases to 55db.

Functional Test

Although inhabiting the same price category, the Kyvol air purifier boasts a CADR double that of the Medify unit. As a result, the air purified by the Kyvol air purifier is approximately twice what is processed by its competitor.

Both units are virtually noiseless at their lowest speed. The Kyvol, its fan rotating at 716RPM, produced enough of a breeze to clean the air of a small room slowly. Purified air output from the Medify unit proved to be negligible.

At the second-lowest setting, the Medify emitted a gentle breeze, and the sound of its fan petered off at about the one-foot mark. While the Kyvol’s airflow was far more significant, its fan noise could be detected four feet away.

The Medify unit can capably keep the air of a small room purified when the third fan speed is selected. While the sound from this device can be detected from 12 feet away, it is low-pitched and usually drowned out by other background noises. The Kyvol air purifier is noticeably louder at its third setting but not particularly distracting. This fan speed would typically be selected when used in a medium-sized room.

At its highest fan speed, the Medify air purifier’s noise level reaches 55db. Also, quite unfortunately, the tone emitted rises in pitch. I suspect that this setting would seldom be used. The noise level of the Kyvol device also rises to 55db when running at its highest speed. While louder than ideal, its noise is lower-pitched and not quite as irritating.

Overall Impression

The Medify MA-14 is a small and well-constructed device that can competently purify the air of a small room. Its control panel is uncomplicated and positioned to the front, where it can be easily accessed. Even better, its buttons provide immediate feedback by producing a solid 'click' whenever they are pressed.

However, the Kyvol unit, which is priced only ten dollars higher, can purify air at twice the rate of the device from Medify. It may be used in small to medium-sized rooms and can be set to a lower—and quieter—fan speed while cleaning approximately the same amount of air as its competitor. In addition, the Kyvol air purifier is fitted with a set of prefilters that can be easily removed and washed under tap water. The Kyvol Vigoair P5 is recommended.

© 2021 Walter Shillington

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