FIRST DEFENSE NASAL SCREENS

First Defense Nasal Screens™ — Personal Air Filtration, Simplified

Breathe cleaner air. No drugs. No masks. Just peel and stick.

First Defense Nasal Screens (FDNS) are the world's first non-inserted, self-adhering nasal filters — a patented breakthrough in personal respiratory protection. Designed for everyday use, they sit gently on the outside of the nostrils, filtering the air you breathe before it ever enters your body.

How They Work

Approximately 90% of the air we breathe passes through the nose. FDNS uses a medical-grade, breathable filter media to intercept airborne particles at the source — right at the nasal passage — with a filtration efficiency of up to 99% for allergens and other contaminants.

What they help reduce:

• Pollen & seasonal allergens
• Dust, silica & fine particles
• Air pollution & urban contaminants
• Respiratory droplets, bacteria & airborne viruses
• Second-hand smoke & chemical irritants

Key Features

• Non-inserted design — sits on the nose, not inside it; comfortable for all-day wear.
• Hypoallergenic adhesive — moisture-resistant, skin-safe, tested for daily use without irritation
• Up to 24-hour wear — self-cleaning filter media that will not clog
• Nearly invisible — clear outer ring with a light beige filter center blends with natural skin tone
• Mask-free life — eat, speak, and wear glasses without fogging or removing
• Drug-free relief — no antihistamines, no sprays, no side effects
• Made in the USA — 100% non-latex, skin-safe material; patented technology (Pat. No. 8,550,079 & 9,132,300)

  Who Benefits

 FDNS are suitable for allergy sufferers, outdoor enthusiasts, travelers, healthcare and        care workers, construction and industrial professionals, and anyone seeking daily  respiratory protection in polluted or high-particle environments.

Sizing Guide

Choose the size that best matches your nostril diameter:

When in doubt, measure the outer diameter of your nostril opening or choose Medium as the most commonly fitting size.