A flatulence filter is a device which is placed on an undergarment and worn in order to filter out odors caused by excessive flatulence. They are generally made from some sort of fabric and filled with charcoal, or sometimes other materials, which are known to neutralize odors quickly and effectively. Most are made very thin like a maxi pad, so they can be worn discreetly under the clothes without detection. Some also come as full-sized underwear.
The main purpose of a flatulence filter is to prevent odors from intestinal gas from reaching others. Sufferers of excessive flatulence often find themselves embarrassed in social situations when passing gas cannot be prevented. Since filters are worn on the body, no one but the person wearing it has to know it exists. They have been shown to be effective at neutralizing and filtering odors before they reach the surrounding air.
There are other ways to make the use of a flatulence filter more effective. It is recommended that those who experience frequent flatulence should avoid foods which may make gas worse, primarily those which may increase the amount of odor. Foods which are notorious for causing malodorous gas are broccoli, eggs, cabbage, and beer. As a general rule of thumb, if the food itself has a strong smell, it will likely result in strong-smelling gas.
Certain dietary changes may also help to reduce the amount of intestinal gas to begin with and may make using a flatulence filter less needed. Fiber, cruciferous vegetables, beer, and sodas are all foods which are associated with an increase in gas production. Specific dietary options may vary based on the individual, however, so consumers are urged to keep a food diary to determined what items are the offending foods.
Most times, the purchase of a flatulence filter is discreet and private, and can be done online. This allows customers to order it without anyone else having to know. Most varieties are reusable, although some may be disposable. Aside from filtering out the smell of gas, some options also help to mask the characteristic sounds which often accompany flatulence. Other items include filtered car and seat cushions and filtered undergarments.
Replacements may have to be purchased regularly, as filters can be become worn out over time. They are relatively inexpensive, but, those who only suffer from occasional intestinal gas may not find the use of a filter worth the expense.