I feel like I have too many questions at the moment but with a face mask (I have the one with all the organic filters on it ABEK1 or something?) how do you know when the filters needs replacing? Is it as simple/obvious as you can start to smell the fumes or is it more subtle than that? On the (highly appreciate) advice of the sages on here I've been keeping the mask in a large ziploc bag but obviously don't want to carry on using it if it's losing efficacy.
Cheers all!
Cheers all!
Comment