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Affiliate links · Last verified 2026-05-21 · 🌍 Outside the US? Amazon and eBay will redirect you to your country's local store automatically.
The Story
Do you struggle with allergies? Have you ever dealt with the irritation in your respiratory system that comes from working in the yard, the attic, cleaning the house or any other place where there are small particles floating in the air?
The Pitch on Shark Tank
First Defense Nasal Screens appeared on Shark Tank (Season 2) in 2011.
Frequently Asked Questions
Is First Defense Nasal Screens still in business?
First Defense Nasal Screens is still listed on Amazon and eBay — see the buy links below for the latest availability.
Who founded First Defense Nasal Screens?
Founder details aren't publicly documented for First Defense Nasal Screens.
Did First Defense Nasal Screens get a deal on Shark Tank?
Deal details from the original pitch aren't in our records.
Where can I buy First Defense Nasal Screens?
First Defense Nasal Screens is available on Amazon and eBay. We compare current prices across both at our /results page — link below.
Related from Shark Tank
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