If you are heading to hazy Singapore for the next few days or weeks then you will need some extra gear this trip. Get your N95 masks from the store or totobobo masks, you will need it. www.totobobo.com/hk
You can get up to date PSI and PM2.5 reading from the NEA website http://www.nea.gov.sg/psi/ or get the iphone app from the itunes https://itunes.apple.com/sg/artist/national-environment-agency/id444435185
Happy Travel and Stay in Door !
Photo Credit: kokeshi via cc license