in theory you should put a new mask every time you have to wear one. but no one does it, they scrunch them in their pocket while not needed, some pull them over the chin like in south parks pandemic special. some wear them on their arm or wrist while not in use. i tend to put mine in a ziplock bag while not wearing it. i use 1 new one for an outing, but that still means i take it off and put it back a few times. my instinct tells me to take it off as soon as its possible so my body can breath fresh air as much as possible while outside.
its a great rubbish crisis too with all these masks ending up in the trash at best and in the oceans at worst. think about the amount of extra trash being produced, don't forget all the ppe, mountains and mountains of extra plastic trash. i'd like to get reusable cloth masks, but the gov has said those are not effective and give wearers a false sense of protection, so for now we are using the 1 way surgical masks like most seem to recommend. at least they have become cheap.
its a great rubbish crisis too with all these masks ending up in the trash at best and in the oceans at worst. think about the amount of extra trash being produced, don't forget all the ppe, mountains and mountains of extra plastic trash. i'd like to get reusable cloth masks, but the gov has said those are not effective and give wearers a false sense of protection, so for now we are using the 1 way surgical masks like most seem to recommend. at least they have become cheap.