if they are fitted properly, yes.
They key here is "well fitting". Without that the chance goes from 1 per thousand all the way up to 4%. In just 20 minutes. Sure, thats still better
Unfortunately, most of the KN95 masks I can get don't fit nearly as well as the 3M N95s I can purchase.
One big factor is that inside the US, "KN95" had not actually been regulated while "N95" is. I have both, but the KN95 for more quick and disposable situations, N95 for conferences, etc.
Jon A. Cruz
npub1e7…ph6wt
2025-08-12 05:19:08 UTC
in reply to nevent1q…nqjm
Author Public Key
npub1e747ak5pq74yzpwpd5k0lu5trzu5nr3fmx0v0jcvy6apy5fp0myqhph6wtSeen on
wss://relay.momostr.pinkPublished at
2025-08-12 05:19:08 UTCEvent JSON
{
"id": "c2ec6303ce8741e9e43b16e77f5e7722769d92f788cb77296e87c67c75d3c7cc",
"pubkey": "cfabeeda8107aa4105c16d2cfff28b18b9498e29d99ec7cb0c26ba1251217ec8",
"created_at": 1754975948,
"kind": 1,
"tags": [
[
"proxy",
"https://mstdn.social/@joncruz/115014103728927928",
"web"
],
[
"e",
"75337bd4afb9a459219db476f7865d355c204da6c776563588718b6023a52751",
"",
"root",
"344db22d81411aa037ec0856f614e9bd46a74f1c6e2b08a5d56eba25525d369a"
],
[
"p",
"344db22d81411aa037ec0856f614e9bd46a74f1c6e2b08a5d56eba25525d369a"
],
[
"p",
"0a2ec68ebd01629acbc1f75c12668e49c4d6c9e9dd4db9307da660c31fedb723"
],
[
"e",
"3b887999f39af0e6fd78462d6ec035ae65c795f605382566bf14f33fb7d6389f",
"",
"reply",
"0a2ec68ebd01629acbc1f75c12668e49c4d6c9e9dd4db9307da660c31fedb723"
],
[
"p",
"cfabeeda8107aa4105c16d2cfff28b18b9498e29d99ec7cb0c26ba1251217ec8"
],
[
"proxy",
"https://mstdn.social/users/joncruz/statuses/115014103728927928",
"activitypub"
],
[
"L",
"pink.momostr"
],
[
"l",
"pink.momostr.activitypub:https://mstdn.social/users/joncruz/statuses/115014103728927928",
"pink.momostr"
],
[
"-"
]
],
"content": "if they are fitted properly, yes.\n\nThey key here is \"well fitting\". Without that the chance goes from 1 per thousand all the way up to 4%. In just 20 minutes. Sure, thats still better\n\nUnfortunately, most of the KN95 masks I can get don't fit nearly as well as the 3M N95s I can purchase.\n\nOne big factor is that inside the US, \"KN95\" had not actually been regulated while \"N95\" is. I have both, but the KN95 for more quick and disposable situations, N95 for conferences, etc.",
"sig": "6aac3ca11ab91aa1156973f24c8088ae505dcbd13c86ab8fc72ac385d77051693417b35e0a9a6fe174ec5bfd3cb8bd2a93985362c33f131d864170167ab73659"
}