Singapore's air is much better than Hong Kong's or Shanghai's. I grew up in the great white north, surrounded by nature, and on a day to day basis, Singapore's air is fine.<p>But this annual haze, largely caused by burning in Sumatra to create more farm land, is brutal. It's slightly worse than the worst I've seen in Hong Kong (Summer 2012) and it feels like it's lasting longer than the really bad spikes you get in HK.<p>Overall, I'll take 1-2 weeks of hazardous air, versus the more constant unhealthy air of Hong Kong or Shanghai.<p>Sadly, both HK and Singapore are quick to blame others. SG blames Indonesia, HK blames factories in Southern China. Even if both claims are true with respect to total pollution, both regions could be doing much more to reduce pollution.<p>P.S. - If anyone at Amazon or 3M is reading this...there's a need for N95 masks. The people most at risk are also the people less able to spend $3 a day on a mask - homeless, elderly, construction, cleaners.