Update: I've found some deals on eBay which are worth a look. Earlier, I posted about air purifiers for the haze. I am pleased to report that they arrived in a mere NINE days, using the cheapest shipping option (which isn't at all cheap, by the way). I had ordered them on 13th July, as I did my first post on the topic. They arrived on 22nd July. I don't know why I had one "gift-wrapped"... Beefed-up (relative to the first one) transformer for the more powerful purifier Looks a lot nicer than the other one I only did this update now, as the winds have brought a bit of the haze back to SG. Otherwise, I know most Singaporeans have forgotten the impact and intensity of the 400 PSI haze, and nobody will read this post. Today's haze smells pretty bad but AQI really isn't that bad. It's still in the moderate range, and AQI factors PM2.5 into the equation. As I mentioned in the previous post, the four purifiers I bought (one from a friend, three from Amazon) were for my family, and my in-laws'.