So how does this underwear filter flatulence?
Shreddies underwear features a special activated carbon back panel that absorbs flatulence odours. Due to its highly porous nature, the odour vapours become trapped and neutralised by the cloth, which is then reactivated by simply washing the garment.
Activated carbon cloth is used in chemical warfare suits which demonstrates just how effective it is at removing vapours. When it was originally invented, the carbon cloth was a heavy, non flexible woven material, but due to a recent innovation this activated carbon cloth is now a lot thinner and far more flexible, making it ideal for use in the new generation of chemical warfare suits and garments such as our underwear.
The activated carbon cloth in our underwear is not a small replaceable panel that needs changing regularly, but runs the full width of the back panel.
The underwear is designed to hug the body to give the carbon back panel a snug fit, forcing all flatulence odours to pass directly through it, allowing you to relax knowing there is no risk of any flatulence odours escaping.
Previous research performed by Dr Levitt and published in The American Journal of Gastroenterology found activated carbon underwear to be the most effective method of removing flatulence odours, but this analysis was conducted before Shreddies were on the market. The Textile testing department of DeMontfort University In the UK tested our new 100% activated carbon jersey cloth and presented their findings at The 86th Textile Institute World Conference 18 - 21 November 2008, Hong Kong. The ACC was found to remove sulphide and ethyl mercaptan so efficiently that it can filter odours 200 times the strength of the average flatus emmission. The fabric remains effective for the life of the garment (2 to 3 years) providing conditioner is not used, which clogs up the tiny pores.
The efficacy of the underwear is more dependant on fit than anything else. As long as the carbon back panel is held snugly to the body over the buttocks and under the gusset, flatulence will pass through the panel and be completely filtered. If the underwear are too large they are less effective as flatulence can escape in certain body positions and if the back panel is damp the carbon's pores are filled with water droplets and the filtration properties are markedly reduced. For this reason we recommend drying on medium heat in a tumble dryer or drying on a radiator.
For more information on the various styles which are designed to ensure that flatus passes through the filter and doesn't escape forward of the gusset please refer to our information on styles and sizes page. The male anatomy and variations in the size of genitals make achieving a snug fit under the gusset much more difficult, so we have designed styles which lift the genitals up and forward to achieve the best filtration in all body positions.

Contains
Manufactured by
Chemviron Carbon
Cloth Division







