Category III PPE pathway · EU 2016/425

Designed for wearability
from the nose up.

NASO-SHIELD is a prototype intranasal device with a reusable structure and replaceable filters. AYRO is designing it for industrial work where conventional masks can be difficult to wear throughout a shift.

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Explore Anatomy

51%

pooled PPE use across 15 worker studies Source ↗

39–62%

95% confidence interval for the pooled estimate Source ↗

$29.7B

global respiratory protective equipment market forecast for 2034 Source ↗

8.3%

estimated market CAGR, 2026–2034 Source ↗

Traction

6 signed letters of intent with industrial partners

6+ sectors engaged, from steel and mining to chemicals

Barcelona EU-based deeptech, developing and validating in-house

The Usability Gap

Protection should fit the shift.

Heat, humidity and fogging can make conventional masks harder to wear throughout a shift. NASO-SHIELD is designed to leave the face and mouth uncovered.

NASO-SHIELD

An open-face design.

The intranasal structure is designed to leave the mouth and much of the face uncovered. Comfort and compatibility with other PPE still need user testing.

CONVENTIONAL FFP2

Heat and moisture behind a mask.

Conventional masks can retain warmth and humidity around the face. Discomfort can lead workers to adjust or remove them during a shift.

The Device

The device, in detail.

A precision-molded structure designed to align with nasal cavity geometry without covering the nasal bridge.

NASO-SHIELD Isometric View · Transparent Casing

Below View · Soft Nasal Interface

Front View · Minimal Frontal Projection

The Interface

Engineering the nasal interface.

Micro-Membrane

Designed to balance particle capture efficiency with high permeability, minimizing nasal flow resistance during physical activity.

Flexible Nasal Interface

Designed in medical-grade silicone, TPE or equivalent biocompatible materials, for soft skin contact across a long shift. Material selection is not yet frozen; biocompatibility assessment references ISO 10993.

Ecosystem

Ecosystem Visibility

Selected institutions and programs where AYRO and NASO-SHIELD have built active public visibility.

How we work with each

Pilots

Ready to explore NASO-SHIELD?

NASO-SHIELD remains at prototype stage. If you want to learn about the design or express interest in future evaluations, contact AYRO. The prototype does not replace required certified PPE.

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Designed for wearability from the nose up.