Sanispira is a filter that allergens (= particles where someone is allergic to), and collects dust in your nose so you do not inhale them.
Using Sanispira nasal filter in your nose, your nasal mucosa is more protected from allergens such as grass- and tree pollen, house dust mites and animal dander (eg. cat, dog, horse). This lead to less problems caused by your allergy. You can wear the nasal filter throughout the day or at the moment that you are for a longer time outside when you suffering from pollen allergy (cycling, sport, working/ sitting in the garden etc.) or, when you suffering from house dust mites, when you go to bed.
Even if you work in a dusty environment, Sanispira filter is recommended. The dust is trapped in the filter and therefore you breathe cleaner air. With Aerosan filters in the nose, you can still easily breathe and talk. When wearing masks is that much more difficult. In addition, as opposed to the wearing of masks Aerosan does not interfere with the field of view.
A Sanispira filter last for 8-12 hours. depending on the intensity of exposure to allergens or dust. There are three sizes: S, M and L. One package contains 6 filters.