原文章由 simon00 於 07-7-5 09:59 發表
I am also using SHARP, model FUS51A/R for more than 1 year. The price was around 2,700 and I think it drops a lot over the year.
I am living in 4th floor and I always open all the windows during day time in order to allow more fresh air coming in.
During night time, I switch on the machine until next morning. By doing that, I need to clean the filter once every five to six months because it is really dusty and dirty. So I can imagine the air I am breathing is in fact not so clean.
On the other hand, my daughter do not have any nasal problem at all. Anyway, the effect is acceptable.