Inventor's Story


About 20 years ago, New Jersey resident Ashok Wahi's daughter Aikta frequently suffered from allergies after exposure to her friend's cat. He wanted her to be relieved from the constant sneezing, runny nose, and congestion without taking drugs.  When conventional over-the-counter remedies made her sleepy at school, he was motivated to create a drug-free solution for his daughter that wouldn’t cause drowsiness and other side effects.

The project's goal was to prevent the inhalation of allergens rather than treating the allergy symptoms after the fact.

With this in mind, Wahi put his engineering skills to work and developed a unique gel that blocks allergens on contact, therefore alleviating allergy symptoms.  Hence the birth of NasalGuard ® technology.

Principles & Technology

NasalGuard® AllergieBLOCK® uses patented technology that works on a simple principle of electrostatic charges: opposite charges attract each other.

AllergieBLOCK gel has a slightly positive charge which attracts negatively charged allergens.  Allergens like pollen, rageed, dust mites, pet dander, and house dust all carry a slightly negative charge.

Marketplace Presence

Marketplace Presence

NasalGuard® - BLOCKing Allergies World Wide

First introduced in the US & Canada in 2003, Nasal Guard® AllergieBLOCK® was originally called Aller-Aid. We expanded to Europe in 2005, launching in Germany with the name “Allergoprävent”

NasalGuard® technology continued to make global presence when it debuted in Japan in 2008, where the product is currently marketed under the trade names “Crystal Veil”, “Crystal Veil Cool” and “Nurumask”. Continuing its trek across the globe, NasalGuard® launched in Italy in 2010.

No matter the location, or the language, NasalGuard® is proud to provide relief and prevent allergies in homes (and outdoors!) worldwide. Be sure to keep a look out for NasalGuard® products in more European countries in 2012!