Comments on: How to perform a Visual-Seal-Check (VSC)?

By: Reusable face mask hits 25 countries

Reusable face mask hits 25 countries — Fri, 26 Jun 2009 08:55:19 +0000

[...] Visual-Seal-Check, or VSC, is much more reliable than the seal check found in other N95 masks. This study shows that [...]

By: N95 Masks Are Useless

N95 Masks Are Useless — Wed, 29 Apr 2009 17:11:33 +0000

[...] detail of Totobobo visual seal check can be found [...]

By: ganesh

ganesh — Mon, 16 Mar 2009 04:09:50 +0000

dude… if the mask ‘breathes’ along with you, then you have a good seal…

By: Incense smoke demo

Incense smoke demo — Mon, 09 Feb 2009 16:06:37 +0000

[...] Related posts: Protect children from cancer causing incense smoke Burning Joss Sticks can cause Cancer How to do a TOTOBOBO user seal check? [...]

By: info

info — Thu, 22 Jan 2009 15:28:13 +0000

Hi Rohan, the seal will naturally become tighter as you inhale due to negative pressure inside the mask. The seal will break more easily when you exhale- due to higher pressure inside the mask. By the color of the used filter, you can tell how much dirt the mask has helped, even it may not be a perfect seal. However, for protection against deadly viruses like SARS or bird flu, it is extrememly important to make sure the seal is good.

By: ROhan Kini

ROhan Kini — Thu, 22 Jan 2009 03:21:48 +0000

Oh I did not know about this trick to figure out the user seal ! Awesome. Looks like I still dont have a perfect seal.

Thank you.

By: How to assemble the filter cover?

How to assemble the filter cover? — Wed, 21 Jan 2009 23:35:52 +0000

[...] More instruction of use: How to customize TOTOBOBO mask? how to wash TOTOBOBO mask for reuse? How to perform a user-seal-check ? [...]