QUOTE(Gary1981 @ Nov 21 2011, 08:15 PM)
What parameter should I consider for air purifier? I notice there are various size and price. My main purpose is to eliminate dust and other features will be added advantage. I guess sizes of the purifier determine the area of location. What size to choose for living room and master bedroom. For sharp, I found price range frm rm450+ to rm2k..what actually the difference which I found expensive has more function button...
Based on my survey, there are 2 types of air purifier,
1)Purification without kill bacteria
For this kind of air purifier, it is functioning by filtering the dust particle in your air but do not kill any bacteria which may cause odor problem. This kind of purifier do provide some moisturizing effect to your environment so that your room will not too dry and causing you have dry skin problem. It is good for aircon room, I saw one Panasonic model last time offer, RM200 PWP with Panasonic aircon, tot to buy one but saw without bacteria killing function, so end up give up.
2)Purification by killing bacteria
For this kind of air purifier, anion will be produced to kill the bacteria, the killed bacteria will be turned to CO2 and expose to your environment. The sharp I am using is the lowest end model of air purifier under sharp in which it comes with bacteria killing features.