Failed to block large particles. Will be ineffective for germs.
These make properly worn do not even block simple dust or daily allergens. They will be of not be useful for prevention of airborn transmitted infection.<br />I am a former RN Specialist. I bought these cheaper masks for use in my home for brief socially distanced encounters to give to ppl at my door etc. However in testing these with regular house dust they failed 3 consecutive times. Because I know the proper correct way to use a disposable face mask, I believe I can say with personal certainty they are substantially ineffective at blocking smaller particles suck as virus. However if this is all you can afford, I suggest you buy another similar product in this price range + supplement it with secondary face mask pathogen barriers as found on credible internet sites. That will be helpful bc blocking virus that causes COVID19 is essential.
Rating: 1 stars