Comments on: Testing 9 types of air filters with a laser particle counter http://totobobo.com/blog/6-filter-test/ Breakthrough innovation in respiratory protection for children and adults Mon, 06 Feb 2012 16:08:04 +0000 hourly 1 http://wordpress.org/?v=3.1 By: Laidback4HU http://totobobo.com/blog/6-filter-test/comment-page-1/#comment-5424 Laidback4HU Mon, 06 Feb 2012 16:08:04 +0000 http://totobobo.com/blog/?p=1418#comment-5424 How does intense demand affect the effectiveness? Used "I can breathe " masks for a few months. They do not seal. Did notice some help.Yet wonder about the carbon monoxide filtration claims. Typically the bicycling being done here is demanding huge volumes of air especially during sprints and sustained race levels of activity. How does the Totobobo work under these conditions. ALso, is there any evidence of breakdown under extreme humidity? Central Floridian summers and the rains are coming . Still searching for access/ merchants of this filter, too. Thanks very much for the filtration comparisons. TR How does intense demand affect the effectiveness? Used “I can breathe ” masks for a few months.
They do not seal. Did notice some help.Yet wonder about the carbon monoxide filtration claims.
Typically the bicycling being done here is demanding huge volumes of air especially during sprints and sustained race levels of activity. How does the Totobobo work under these conditions.
ALso, is there any evidence of breakdown under extreme humidity? Central Floridian summers and the rains are coming . Still searching for access/ merchants of this filter, too.
Thanks very much for the filtration comparisons.
TR

]]> By: info http://totobobo.com/blog/6-filter-test/comment-page-1/#comment-5088 info Tue, 25 Jan 2011 10:37:23 +0000 http://totobobo.com/blog/?p=1418#comment-5088 Totobobo filter will not 'clogged' for typical use. It's effectiveness of filtering fine particles degrade as more and more particles are attracted to the fibers and 'neutralize' the electro-static charges. More information of the working principle can be found here: http://totobobo.com/blog/does-smaller-particle-always-penetrate-filters-easier/ Totobobo filter will not ‘clogged’ for typical use. It’s effectiveness of filtering fine particles degrade as more and more particles are attracted to the fibers and ‘neutralize’ the electro-static charges. More information of the working principle can be found here: http://totobobo.com/blog/does-smaller-particle-always-penetrate-filters-easier/

]]> By: Aaron http://totobobo.com/blog/6-filter-test/comment-page-1/#comment-5051 Aaron Mon, 16 Aug 2010 01:50:34 +0000 http://totobobo.com/blog/?p=1418#comment-5051 How about a test for filter quality over time? leave the Dylos on for a week or two, and check the reading once a day. If the Dylos can also measure the air resistance, take down that measure as well. So can create a graph of air resistance and filtration score over time, for 3M material and your material. This will say how quickly each material gets 'clogged'--how often it needs to be replaced. Best. How about a test for filter quality over time? leave the Dylos on for a week or two, and check the reading once a day. If the Dylos can also measure the air resistance, take down that measure as well. So can create a graph of air resistance and filtration score over time, for 3M material and your material. This will say how quickly each material gets ‘clogged’–how often it needs to be replaced.

Best.

]]> By: Totobobo SuperCool mask gives cyclist fresh air in polluted traffic http://totobobo.com/blog/6-filter-test/comment-page-1/#comment-4841 Totobobo SuperCool mask gives cyclist fresh air in polluted traffic Mon, 24 May 2010 20:36:41 +0000 http://totobobo.com/blog/?p=1418#comment-4841 [...] to keep unwanted airborne particles out of the respiratory system. In a recent test, the TOTOBOBO filter outperformed the competition, including the Respro City mask (http://totobobo.com/blog/6-filter-test/). An earlier test in the Prince of Wales Hospital, Chinese [...] [...] to keep unwanted airborne particles out of the respiratory system. In a recent test, the TOTOBOBO filter outperformed the competition, including the Respro City mask (http://totobobo.com/blog/6-filter-test/). An earlier test in the Prince of Wales Hospital, Chinese [...]

]]> By: info http://totobobo.com/blog/6-filter-test/comment-page-1/#comment-4372 info Tue, 16 Feb 2010 14:45:14 +0000 http://totobobo.com/blog/?p=1418#comment-4372 Pascal, thanks for your comment. To measure the impact of reduced air flow, we did a simple experiment by blocking 7/8 of the air inlet to reduce the air flow, and the reading of the particle count stays similar. I anticipate the counter counts the "dynamic density" of the particles. Higher speed particle means shorter exposure time and that actually reduce the reading. However, the effect is neutralized by the bigger volume of air passing through the counter. We also waited longer time if the air flow reduces, to make sure there is enough time to replace all the air inside the counter. What do you think? Pascal, thanks for your comment.
To measure the impact of reduced air flow, we did a simple experiment by blocking 7/8 of the air inlet to reduce the air flow, and the reading of the particle count stays similar. I anticipate the counter counts the “dynamic density” of the particles. Higher speed particle means shorter exposure time and that actually reduce the reading. However, the effect is neutralized by the bigger volume of air passing through the counter. We also waited longer time if the air flow reduces, to make sure there is enough time to replace all the air inside the counter.
What do you think?

]]> By: Pascal http://totobobo.com/blog/6-filter-test/comment-page-1/#comment-4371 Pascal Tue, 16 Feb 2010 14:05:30 +0000 http://totobobo.com/blog/?p=1418#comment-4371 The fan on the Dylos monitor isn't strong. A lot of the particle count reduction could simply be because the fan was unable to pull as much air through the detector -- you measured air flow reduction instead of filtering. The fan on the Dylos monitor isn’t strong. A lot of the particle count reduction could simply be because the fan was unable to pull as much air through the detector — you measured air flow reduction instead of filtering.

]]> By: Robin http://totobobo.com/blog/6-filter-test/comment-page-1/#comment-4239 Robin Fri, 05 Feb 2010 06:17:35 +0000 http://totobobo.com/blog/?p=1418#comment-4239 Wow, this is very useful. Many companies offer pollution mask and filters, but none bold enough to do such a test. Wow, this is very useful. Many companies offer pollution mask and filters, but none bold enough to do such a test.

]]> By: Neo http://totobobo.com/blog/6-filter-test/comment-page-1/#comment-4060 Neo Thu, 21 Jan 2010 06:25:24 +0000 http://totobobo.com/blog/?p=1418#comment-4060 Dude, that's a great post. Can you try some other material, such as T-shirt, tissue paper or even sponge? Dude, that’s a great post. Can you try some other material, such as T-shirt, tissue paper or even sponge?

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