Introducing Mi Air Purifier 2 Singapore

Mi Air Purifier 2 has many benefits compared to its counterparts. It has very high efficiency, quiet and aesthetic style that is suitable for most interior design.

This new series has an updated system of air flow and CARD performance of 330 meter cube per hour. This means it only takes 10 min for Mi Air Purifier 2 to clean a space of 23 meter square. Just a few minutes, you can enjoy fresh and clean air anywhere!

Mi Air Purifier 2 Singapore


Check out the current promotion for Mi Air Purifier 2 here!


What is PSI?

PSI stands for ‘Pollutant Standards Index’. It is an index to provide accurate and easily understandable information about daily levels of air quality.

PSI is computed based on 24-hour average of PM2.5 concentration levels, among other pollutants. PM2.5 is the dominant pollutant during haze episodes.

The ambient air in Singapore is monitored through a network of air monitoring stations located in different parts of Singapore.

The monitoring stations measure concentration levels of particulate matter (PM10), fine particulate matter (PM2.5), sulphur dioxide (SO2), nitrogen dioxide (NO2), ozone (O3), and carbon monoxide (CO). These six pollutant parameters determine the PSI.

The PSI value gives an indication of the air quality as shown:

PSI Value PSI Descriptor
0 – 50 Good
51 – 100 Moderate
101 – 200 Unhealthy
201 – 300 Very unhealthy
Above 300 Hazardous

Technical details on how the PSI is calculated can be found here: Computation of PSI

How to select an air purifier for your needs

The following are some criteria for you to consider before buying an air purifier:

  1. HEPA filter and activated carbon filters – A good filter should have both HEPA and carbon filter as it will remove virus and odors in the air.
  2. Space needed – You also need to consider if you have enough space for a big size air purifier or just a small space for a modest one.
  3. Noise level – If you are buying a air purifier for your sleep, then you should select one with low noise level. This Samsung model has very low noise level as compared to other brands.
  4. Future cost – One key consideration is the cost for replacement of the air purifier. Remember to ask where can you buy the filter for replacement and how much it would cost you.

Hope you find these tips useful!