3M 4255 Half Mask Respirator

A standard gas mask from 3M with a filter made of activated carbon which protects against organic fumes and dust particles when, for example, painting with spray. A supple gas mask with integrated filters (not replaceable). To extend its life span you should always keep your mask in a tightly sealed plastic bag when it's not being used. It is time for a new mask when you can feel the scent of the paint when inhaling through the mask. Will last for around 30-50 hours of active use depending on the concentration of the vapours.