I live in Chiang Mai and as usual for this time of year the fires are in full swing. There is smoke haze in the air every day and the rooms are getting dustier much faster than other times of the year.

Does anyone use an air filtration unit in their home which they think gives a real benefit? I used to use one years ago overseas, but the HEPA filters were quite expensive so I stopped using it and it didn't seem to collect that much dust anyway.

I'm wondering if today there are units available with washable HEPA filters (like you can get in vacuum cleaners).

YES

I just posted about it. (check my previous post)

BUY ONE

Our aircon has to be cleaned many times a year, i don't understand why aircons don't have a good airfilter that is washable or easy replacable. I don't like the airconservice guys in my house with that sprayer.

I bet there is a good market for that.