Olyset Net: A long lasting insecticidal net (LLIN) using hybrid polymer and controlled insecticide release technology to repel, kill, and prevent mosquitos from biting for up to five years.
Bursting Strength (kPa)
189 + 15%
Expected lifespan (months, washes)
Insecticide content (g/kg)
20 + 3
Protection from insect entry (yes/no)
Retreatment required? (frequency)
Liquid permethrin is slowly released into the polyethylene fibers of the net over a course of 3 years. > 150 denier content Controlled release technology Washable Odorless Olyset Nets come in 3 sizes: Rectangular, Rectangular (Special Size), Conical, and Hammock Cover. See detailed sizing information in the picture below.
Holes can be patched with local materials, although the insecticide will no longer be present on that spot.
Expected to last 5 years, while some studies show it often lasts 7 years.
Manufacturer Specified Performance Parameters
5 year durability with consistent results. Repels, knocks down, and kills mosquitoes for longer than traditional ITNs.
Vetted Performance Status
Testing results from the National Institute of Malaria Research.
Complementary Technical Systems
Academic Research and References
N’Guessan, R., et al., Olyset Net efficacy against pyrethroid-resistant Anopheles gambiae and Culex quinquefasciatus after 3 years’ field use in Cote d’Ivoire. Medical and Veterinary Entomology. 2001 Mar;15(1):97-104.
Sharma, S.K., et al., Wash resistance and bioefficacy of Lyset Net — a long-lasting insecticide-treated mosquito net against malaria vectors and nontarget houshold pests. Journal of Medical Entomology. 2006 Sep 1;43(5):884-888.
Tami, A., et al., Evaluation of Lyset insecticide-treated nets distributed seven years previously in Tanzania. Malaria Journal. 2004 Jun 29;3(19):1-9.
Jeyalakshmi, T., Shanmugasundaram, R., Balakrishna Murthy, P., Comparative efficacy and persistency of permethrin in Olyset Net and conventionally treated net against Aedes aegypti and Anopheles stephensi. Journal of the American Mosquito Control Association. 2006;22(1):107-110.
Sharma, S.K., et al., Field evaluation of Olyset Nets: a long-lasting insecticidal net against malaria vectors Anopheles culicifacies and Anopheles fluviatilis in a hyperendemic tribal area of Orissa, India. Journal of Medical Entomology. 2009 Mar 1;46(2):342-350.
Additional reports and testing found here.
Compliance with regulations
Detailed report on economic impact of local Olyset Net manufacturing facility