http://www.theyeshivaworld.com/news/General+News/183560/R%E2%80%99-Chaim-Kanievsky-on-Gas-Masks.htmlDaas Torah has spoken, there is nothing to fear.
I wouldn't be concerned; it's the Torah that protects, not the gas mask.
Do you wear a seatbelt?
Don't ruin the coolness thought of tanks driving on the streets.
Yeah! Just imagine tanks through the streets of Me'ah She'arim...