logo ZeroFly Hermetic

ZeroFly® Hermetic Storage Bag is the only storage bag that protects post-harvest grains and seeds against external and internal insect attacks. The ground-breaking innovation offers small and medium size farmers and traders trouble-free storage for up to two years by integrating two technologies.

  1. Highest quality hermetic inner-liner ensures full protection for grain already infested by insects pre-harvest, and
  2. Slow release insecticide-incorporated outer bag ensures that no insects can attack the stored grain or seed for up to 24 months. The active ingredient included in the bag, deltamethrin, is a Food and Agriculture (FAO) and World Health Organization (WHO) approved pesticide for controlling insect pests. The active ingredient is incorporated into the individual yarns and slowly released onto the surface of the material in a controlled and sustained manner.


Features ­

  • Affordable: very competitive price and reusable many times over 2 years ­
  • Environmentally friendly: no need to fumigate and use chemicals during storage ­
  • Safe: reduces pesticide residues commonly found in grain and seed and decreases risk of aflatoxin and mold build-up ­
  • Effective: proven global efficacy against key insect pests, including Weevil and Larger Grain Borer, even in the most infested conditions ­
  • Durable: proven to last for 2 years even under the toughest environments ­
  • Tailored to individual needs: available in any size from 10 to 1000 kg and in any color with customized prints


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Recent News

  • Malaria No More honors Mikkel Vestergaard as one of ten innovators that will make possible the end of malaria in our lifetimes
  • US President’s Malaria Initiative visits Vestergaard-Noguchi Memorial Institute for Medical Research
  • Vestergaard joins Roll Back Malaria and Business Alliance against Malaria at World Health Assembly calling for the rapid uptake of innovative tools to eliminate malaria


Vestergaard S.A. primarily funds specific projects with specific outcomes. The grantee’s budget for each research agreement should reflect all of the expenses that are required for, and can be tracked directly to, the research project (i.e., direct costs). Vestergaard S.A. allows indirect costs up to 10 percent of the total project costs. For example, for project costs totaling $100,000 - up to $10,000 can be used for indirect costs and the remaining $90,000 can be applied toward project direct expenses. We understand that the indirect cost rates may not cover all of a grantee’s general operating costs, and grantees may need to use other resources to cover these costs.

Buy LifeStraw®

For consumer purchases, visit LifeStraw® to find a local retailer. For each consumer purchase, one school child in Africa will receive clean water for an entire school year. For large quantities purchased for public health settings, contact us


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Our Partners

  • carter
  • malarianomore
  • rollback
  • unitednations
  • worldvision