hi guys, do you know that you need to change the filter in the air purifier in 3-6months time? Otherwise it will loose it's effectiveness in removing the dust from the air. If you look at the maintenance cost in the next few years it will sums up to a good amount of money.

Would you like to have a better air purifier that is CERTIFIED not just AHAM?? It is also certified AAFA where it is used widely in clinics and hospitals? And it is almost maintenance free because there is no need to change filter regularly... this is a big plus

This post has been edited by ianllh: Dec 23 2014, 12:20 AM