Incense smoke demo

I did a small experiment to visualize how totobobo filter block incense smoke, and how a deliberated gap could render the filter useless.

The setup consist of a vacuum cleaner to provide suction toward the right. This represented the suction force during inhalation. The nose and mouth was marked out by playclay. Another playclay border in front of the nose and mouth represent the mask and formed the breathing zone. A piece of Totobobo filter was inserted to close the opening of the mask, this effectively represented a cross-section of a person wearing a Totobobo mask and covering the nose and mouth.
A glass plate was put on top of the playclay to provide air-tight compartments.

incense smoke visualizer setup

The first demo represented a good seal existed between the mask and the face. The only possible entry for the air was through the filter. At least 94% incense smoke were trapped by the Totobobo filter.

Here is a picture illustration and a video demo:
incense smoke blocked by Totobobo filters

The second experiment was to simulate the effect of a leak.
I opened up the “mask” near the “chin” of the playclad “face”, to show what happen if there is a gap between the mask and the face.

how incense smoke bypass totobobo filter

It was clear that most of the incense smoke leaked through the gap due to strong pressure drop there, and hardly any smoke got attracted towards the filter.

In order to demonstrate a clear cut effect, I’d created a gap much more than what we will see normally.

It was not difficult to see how the incense smoke flow towards the lowest pressure area. When the mask-face seal was good, the maximum pressure drop exist near the filter and the smoke got attracted there. When there was an opening below near the “chin” and created a stronger pressure drop area, the smoke got pull over there.

Therefore it is important to ensure a good seal between the mask and the user’s face. Otherwise, pollutant will by-pass the filter and zip through the gaps wherever easier.

Related post:
Protect children from cancer causing incense smoke

How to do a TOTOBOBO user seal check?

Special features of Totobobo mask

Pollution Protective Gear Survey

We are working with G6V, a Venture team from the MBA Program of Vinod Gupta School of Management, IIT Kharagpur, to conduct a survey about Pollution and the potential market of pollution mask in India cities.

If you are from India or have experienced living in India, please check out the Pollution Protection Gear Survey here.

Part 2 of the survey contains an offer to try Totobobo mask. Please help to forward the survey to your friends from India.

We will post an update of the results later next week.

Thank you, Jim

A email from Jim Waldron yesterday is a perfect user endorsement:

I bought a mask from my woodturning club, Alamo Woodturners association. ( about a year ago.We have your web site on our club home page.
I wear glasses and I have allergies. I have tried many different masks, Yours is the best by far. It is comfortable efficient and easy to clean. (Now) I bought a second mask because I depend on my Totobobo mask and do not wish to be without it if something should wear out. I do wish you sold the filters in larger quantities as I like to change filters with each new project that I start. Packs of 25 or 50 would be very useful and save on shipping.
Please let me know if or when larger quantities of filters are available. I ordered two packages of 10 filters each with my order for the new mask. But that will last me just a few months.
Jim Waldron (TX, USA)

Thanks to Jim’s   suggestion, we added a cost saving bulk pack filter (50 pairs) button in our BUY page.


Please forward your experience or suggestion email to : totobobomask (at) gmail . com


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