Mi Air Purifier 2 Review

Design

The design of Xiaomi products has always been one of their highlights. Over the company’s relatively short period of existence, Xiaomi has taken a lot from other designers to produce products, and especially for those in their Mi Smart Home range, that are aesthetically pleasing.

Measuring just 520mm by 240mm, the Mi Air Purifier 2 is 215mm shorter and 20mm thinner than its predecessor, meaning it takes up less room and doesn’t stick out like a sore thumb. The choice of material for the exterior is a matte finish plastic in white, thats neither too rough or too smooth to the touch. The air inlets of all 4 sides of the Mi Air Purifier 2 are a pixelation of small circles which gradually gets smaller towards the top of the inlets.

At the top of the Mi Air Purifier 2 you will find the air outlet. As the designers have put it:

Engineers have developed and modeled air flow path, according to laws of aerodynamics, leading to optimization of the air cleaner. By reducing the air resistance increases its pressure and, consequently, increases the amount of absorbed and outgoing air. Clean air quickly goes up to the ceiling, and then scattered on all sides, falling down to where it absorbs the air cleaner again. Returning home, use your smartphone to turn on the maximum mode of the device, performance of which reaches 388m³/h.

The choice of colour of the material here is of a light grey, and you will find the wifi indicator LED and the main control button here. The main control button will power the Mi Air Purifier 2 on and off, and also cycle through the different modes which we will cover later.

On the back side of the Mi Air Purifier 2 you will find the panel that opens up to where the HEPA filer is located. On open the panel you will find instructions on how to replace the filter, quoted as taking just 10 seconds, and when to replace it.

The HEPA filter is of a cylindrical design, much like a small dust bin. The outer mesh is of a blue color, whilst the inner mesh is made from activated carbon to help eliminate odors from the air.

Primary filter mesh PET fibers (material), which holds macrobead

The outer layer of PET fibers (containing polyether) stronger than all other filter materials in 3-5 times. It is resistant to oils, greases, acids, dilute alkali, to most solvents and other substances. High-quality filtering grid for 360⁰ holds dust, wool and other materials.

High-quality multi-layer HEPA filter class H11
Cleaning up 99.5% of small particles PM 0.3-0.5

Second layer of filter is able to filter out small material the size of a 0.1 microns. Material from which filter is made from is widely used in hospitals and laboratories. Mi Air Purifier2 uses a HEPA filter of class H11 from the Japanese company Torey. It is made of high quality material and high-density mesh filter, which absorbs all harmful particles PM2.5, PM0.3 as well as dust and other microparticles. This multi-layer mesh is also able to reduce air resistance, which contributes to its better patency. Efficient clearing PM0.3 99.5% — 0.5.

• Strong pressure, every curve is even sharper
• Similarly, calculated interval between each bend
• Determination by laser of space for adhesive substances

High-quality activated carbon filter
Absorbs odors and formaldehyde

Using high-quality cylindrical carbon that has a large specific surface area, pore structure, strong absorptive capacity and other advantages that distinguish it from conventional activated carbon. High level of absorption and high clearance. Specific surface area is the size of a full 29.4 football fields. Does not pass harmful chemicals like formaldehyde, toluene, and other gaseous contaminants.

A small LED indicator is located at the bottom of the front panel. This LED will either glow green, when the air quality is good, or orange when the air quality in the room is bad.