Nose filter

3 disposable nose filter

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.^{[citation needed]}

The filters are available in various sizes, and typically have a center clip to facilitate insertion and removal. They are made in a variety of colors. Some designs incorporate an adhesive tab.^{[citation needed]}

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.