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MI Air Purifier Review With Unboxing Videos and AQI Stats

November 14, 2018 By admin 1 Comment

Contents

  • 1 MI Air Purifier Review & Unboxing Videos
      • 1.0.1 Delivery and Packaging
      • 1.0.2 Detailed MI Air Purifier 2S Review
      • 1.0.3 TESTING GROUND
  • 2 MI Air Purifier 2S Review 30 Days AQI Stats
      • 2.0.1 OLED Real-Time Pollution Display
      • 2.0.2 Air Purifier Placement
      • 2.0.3 Effect On Odour
      • 2.0.4 Results
      • 2.0.5 Filter Inspection After 2 Week Use
      • 2.0.6 Best Way To Prolong Filter Life
      • 2.0.7 Filter Life Remainder Indicator
      • 2.0.8 Light Weight
      • 2.0.9 High Precision Laser
      • 2.0.10 AQI Reading Consistency
      • 2.0.11 Tip To Prolong Laser Life
      • 2.0.12 More Posts From AirSwacch

MI Air Purifier Review & Unboxing Videos

This MI Air Purifier Review is based on Airswacch’s comprehensive analysis. We are sure this detailed review of the MI Air Purifier 2S will help you a lot.

Delivery and Packaging

Our MI Air Purifier 2S was bought from Amazon. It came in a nice and sturdy packaging. The packaging was such that there was no chance of any tampering. The Air filters were brand new. There was no trace of dust or strands on them which means the air purifier was unused and brand new. The filters could have been sealed in some plastic sheet though. Although we have verified that MI delivers the filters like this only everywhere, no exceptions.

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The composite drum filter comes loaded inside the air purifier. You need to adjust it properly on the raised footing. The power cable comes packed inside the air filter chamber itself. The power cable could have been longer for sure.

Detailed MI Air Purifier 2S Review

TESTING GROUND

We used the MI Air Purifier 2S in days of severe air pollution in Delhi. Since the start of November, pollution levels were off the charts. The stubble burning by farmers in Punjab and Haryana as well as cooler environmental conditions were responsible for this. This is an annual phenomenon during October and November months in Northern India especially NCR regions. The Air Quality Index was permanently seated in the hazardous region. Such air is more than enough to make you unhealthy- very unhealthy.

MI Air Purifier 2S Review 30 Days AQI Stats

Some days are omitted since the air purifier was not used on those days. Place is Ghaziabad.

Day Auto Turbo Filter Remaining PM2.5 Reading Room Sizes
31-Oct 4 4 99% 6:15 PM to 7:40 PM Reading down from 141 to 15 ppm Smallest Room 147 sq.ft MasterBedRoom 169 sq.ft Drawing Room 260 sq.ft
1-Nov 7 3 99% 11:30 Used in different rooms one by one
2-Nov 3 3.5 99% 160-30 ppm(MBR) Used in different rooms one by one
3-Nov 0 1 99% 70 Used in different rooms one by one
4-Nov 10 99% 750 Used in different rooms one by one
5-Nov 3 98% 274 Used in different rooms one by one
6-Nov 1 98% 215 Used in different rooms one by one
7-Nov 1.5 98% 600 Used in different rooms one by one
8-Nov 9 98% 600 Used in different rooms one by one
9-Nov 4 98% 370 Used in different rooms one by one
10-Nov 2.5 97% 570 Used in different rooms one by one
11-Nov 2.5 97% 350 Used in different rooms one by one
12-Nov 4.5 97% 347 Used in different rooms one by one
13-Nov 4 97% 210 Used in different rooms one by one
14-Nov 3 97% Overnight rainfall 151 ppm Used in different rooms one by one
15-Nov 0.5 97% Overnight rainfall 65 ppm Used in different rooms one by one
18-Nov 6.5 97% 303 Used in different rooms one by one
19-Nov 3 97% 335 Used in different rooms one by one
20-Nov 1.5 97% 428 Used in different rooms one by one
21-Nov 3.2 97% 330 Used in different rooms one by one
22-Nov 4 96% 442 Used in different rooms one by one
23-Nov 3 96% 260 Used in different rooms one by one
28-Nov 2.5 96% 360 Used in different rooms one by one
29-Nov 3 96% 280 Used in different rooms one by one
1-Dec 2.5 96% 400 Used in different rooms one by one
2-Dec 1 96% 356 Used in different rooms one by one
3-Dec 3 96% 220 Used in different rooms one by one
4-Dec 2 96% 310 Used in different rooms one by one
8-Dec 1 96% 234 Used in different rooms one by one

OLED Real-Time Pollution Display

The dangerous levels of PM2.5 were displayed in the OLED display of the MI Air Purifier 2S. The maximum PM2.5 reading calibrated in the air purifier is 600. You’d be surprised to know that the actual PM2.5 concentration was over 750. So, it took some time for us to be able to monitor the air purification in action. Only when the air purifier had reduced the PM2.5 levels to below 600, could be see it’s real-time concentration.

Air Purifier Placement

It is always recommended to place the air purifier at such a place where there could be maximum unhindered air flow. The backside of the air purifier does not have air vents. So you can place its back facing a wall, but the sides should not be obstructed by anything. In such high pollution levels, every mode of operation like the Auto mode or the sleep mode fails. The Turbo mode which spins the fan at the highest speed itself barely manages to keep pace with the pollution which seeps from the door and windows creaks.

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Hence, it is of utmost importance to keep the doors and windows closed to the maximum possible manner. There is no dearth of pollutants in the outdoor air. You cannot torture your air purifier by not letting it achieve any results. Keep the doors or windows closed so as not to expose the room to unlimited supply of PM2.5 pollutants.

Effect On Odour

We were not particularly pleased with the smell reduction capability of the MI Air Purifier 2S. There was no marked improvement in smells. For example, near the kitchen area if the air purifier was already running while the food was being prepared. Yeah, some change was observed.

Results

After some hours of continuous toiling in turbo mode the MI Air Purifier 2S managed to bring down the pollution level to about 100-130. Worthy to note here is that we moved around the air purifier from one room to another in steps. First we’d isolate and clean the air in one room and keep it closed. Then do the same to another room and finally cleaned the drawing room. This let us finally open all the rooms without worrying that the foul air from one room would enter and pollute the air of the already cleaned rooms.

Sometimes we feel a burning smell as we enter the room in which the air purifier is running. You’d remember the smell which was caused by burning of crop stubble. Guess so great was the pollution that the filters got immersed in its smell completely.

Filter Inspection After 2 Week Use

We inspected the filter after 2 weeks of regular use. To demo, we cleaned the filter with a soft tooth-brush. We found very fine dust particles and minute cloth fibers clung to the outside of the prefilter layer. The amount of dust and other pollutants collected was not much. Credit goes to our healthy and clean living ways.

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Best Way To Prolong Filter Life

We always kept the MI Air Purifier 2S covered with the accompanying case when not in use. Never kept it on the floor when brooming was underway. As indicated above, we used the air purifier only with doors and windows closed. Do not take pride in cleaning the filter only after there are layers of dirt accumulated on it. Clean it at regular intervals preferably with a vacuum cleaner.

Filter Life Remainder Indicator

The Air Purifier Filter life indicator is another useful feature. On its fun run the filter life was showing as 100% intact. Till the close of the first day, the filter was already showing 1 wicket down at 99%. We would not put the blame on it. It delivered good results in drastic conditions which even the manufactures may not have imagined. After two days of hard work with average. For another 5 such days, the Filter life remained at 99% before going to 98%. On the 30th day, the life remaining stood at 95%. This was after 96 hours of usage in Turbo mode or highest fan speed.

Light Weight

Worth mentioning is that the light weight of the MI Air Purifier 2S is an added advantage. In all this room purification exercise you need to lift up the air purifier to place it at different places within the home. However, be cautious to always be patient in managing the power cable. Place the air purifier gently on the ground without giving any shocks to it.

High Precision Laser

The high precision laser sensor which is the brain behind the real-time AQI display also impressed. It is situated at the backside just above the filter casing. So, in an way the air purifier is more sensitive the air quality changes at the backside of it. This we tested when the back of the air purifier is toward the door. The environment outside the door is in its natural state (polluted) or not at pure as the room air. On each opening or closing the door, the gust of wind from outside would at once shoot the PM2.5 reading.

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AQI Reading Consistency

We even tried moving the MI Air Purifier 2S around at different places within the same room. This was done to test whether it collects the PM2.5 reading only in its immediate vicinity. We were pleased to conclude that the air purifier is not at all frivolous or dishonest in depicting decrease in the PM2.5 readings. After an initial couple of seconds of starting the air purifier, its real-time AQI reading gets steady.

Tip To Prolong Laser Life

There is a button at the backside, just above the filter casing to turn ON and OFF the OLED display. It is recommended to turn the OLES display OFF when not needed. This would enhance the life of the laser.

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Filed Under: MI Tagged With: MI Air Purifier Review, Unboxing

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