science jeremy howard will answer the questions more. next. ♪ ♪ >> in an ideal world, we would have the public being messed when they go out. >> we don't recommend them for the general public. >> laura: which is that? masks, no masks, halloween masks? while the cdc and settling the debate in recommending and not requiring, people wear face masks while they're out in public in a physical distance, but not the kind that doctors are. >> a scarf is highly recommended by the professionals. >> can be made from bad demos or scarves or things like this which you have at home. >> were advising new yorkers to wear a face covering whether it be a scarf, it can be something you create yourself at home. >> laura: joining me now is jeremy howard, founder of masks for all and university of san francisco scientist and jeremy, should we d be doing a y thing with a vacuum cleaner bags and i'm looking for those all night and i can find any. there's a run on the banks now and apparently that's good. would you recommend? >> you know, the worst mask as yo

scientist jeremy howard will answer all those questions and more next. [ "one more time" by daft punk ] woo! [ laughing ] woo! play pop music! ♪ no way dude, play rock music! yeah! -woah! no matter what music you like, stream it now on pandora with xfinity. and don't forget to catch "trolls world tour". let's party people! ♪ one more time ♪ >> the mask will protect you from a respiratory illness. >> in an ideal world, we'll have the public being mask going out. >> we don't recommend them for the general public. >> laura: which is it, mask, no mask, halloween mask, cloth mask. cdc settling debate and recommending, not requiring it, people wear a mask out in public when they can't physically distance, but not the kind doctors are using. >> a scarf is highly recommended by the professionals. >> it can be made from bandannas or scarfs, things like this that you can have at home. >> we are advising new yorkers to wear a face covering. it could be a scarf. you could be something that you create yourself at home. >> laura: joined me now is jeremy howard, founder of mask for all, a univ