Nose filter

Short description: Nostril accessory used for protection against irritants

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Three disposable nose filters

A nose filter or nasal filter is an air filter designed to fit inside the human nostrils to prevent the nasal inhalation of allergens,[1] pollutants, and irritants such as dust, smoke, and foul odors. They are generally not intended for protection against toxic or injurious materials such as asbestos.

The filters are available in various sizes, and typically have a center clip to facilitate insertion and removal. Some designs incorporate an adhesive tab or have a flexible bridge to make the product form fitting so it more easily stays in place.

## References

1. ↑ O'Meara, T. J.; Sercombe, J. K.; Morgan, G.; Reddel, H. K.; Xuan, W.; Tovey, E. R. (2005). "The reduction of rhinitis symptoms by nasal filters during natural exposure to ragweed and grass pollen". Allergy 60 (4): 529–32. doi:10.1111/j.1398-9995.2005.00741.x. PMID 15727589.

## Further reading

* Pasricha, J. S. (1981). "Use of nasal filters in naso-bronchial allergy". The Indian Journal of Pediatrics 48 (390): 47–50. doi:10.1007/BF02895185. PMID 7275253.
* Arora, P (1976). "The nasal filter as a simple treatment for inhalant allergy". The Australasian Nurses Journal 5 (2): 6–8. PMID 1051357.
* Pasricha, JS; Abrol, BM (1974). "Relief of inhalant allergy by a mechanical nasal filter". Annals of Allergy 32 (6): 331–3. PMID 4829395.
* Sabbah, A (2000). "Importance of air purifiers in the prevention of respiratory allergy". Allergie et Immunologie 32 (6): 242–5. PMID 10971858.

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