Picture from http://www.3m.com/
Hoping all readers affected by the haze in SE Asia are well and have managed to get hold of an n95 mask. On Friday morning when PSI levels in Singapore reached 400, I stepped out of the office to buy masks for my family, but the Guardians at Raffles Place and Raffles City were out-of-stock of all types of masks. NTUC Unity at Thomson Plaza had some stocks today, but not enough for the people queueing up (including myself).
