Between you and the air.

A self-adhesive nasal filter. Invisible. Drug-free. Lasts all day.

First Defense Nasal Screens. Self-adhesive nasal filter patches on their carrier sheet

First Defense Nasal Screens are small self-adhesive patches that sit on the outside of each nostril. A spunlaced polyester filter catches dust, pollen, and fine particles before you breathe them in, while staying comfortable enough to forget you're wearing them.

One pair lasts up to 24 hours. Peel, stick, go.

Anatomy of a nasal filter

Close-up of a nasal filter showing the polyester filter media and adhesive ring
Filter media
Non-woven spunlaced polyester
Adhesive
Medical-grade acrylic, skin-safe, latex-free
Outer ring
Clear flexible plastic frame
Carrier
Peel to release, one pair per sheet

Manufactured in Indianapolis, Indiana, by Marian Inc.
ISO 13485 facility. Patent US9132300B2.

Where people wear them

Person outdoors on a pollen-heavy morning
On pollen-heavy mornings.
Hazy sky during a Saharan dust event over a city
When the Sahara arrives.
Commuter on a scooter in morning traffic
On the way to work.
Person walking outdoors in early morning light
On early walks.

Easy to apply

Dry skin. Mirror. Both hands.
Once it's on, you can stop thinking about it.

Full application guide
Nasal filter patches on carrier sheet, ready to apply

Find your size

Not sure? Start with M. It fits most adults.

Filter specification

The filter media is non-woven spunlaced polyester. In controlled lab testing by EMSL Analytical in 2018, the media captured:

  • more than 99% of particles 10 micrometres and larger
  • around 93% of particles under 2 micrometres
  • close to 80% of particles below 0.1 micrometres

These figures describe the filter media under lab conditions. Real-world performance depends on fit, how you breathe, and what's in the air.

Close-up of the nasal filter weave structure

Ships across Cyprus and Greece

O.H. OrthoHouse Ltd

27B March 25 Street, Engomi
2408 Nicosia, Cyprus

Monday – Friday 09:00 – 19:00

Saturday 09:00 – 13:30

Sunday Closed

Get directions