Designed for the vestibule.
Engineered for the shift.
Conventional respiratory protection fails the moment a worker removes it due to heat stress or fatigue. NASO-SHIELD is an intranasal filtration prototype with a reusable structure and replaceable filters.
The NASO-SHIELD Architecture
Bio-Silicone Contact Ring
The contact interface is engineered for the nasal vestibule. Material selection, seal retention and comfort are development targets undergoing biocompatibility and user-fit testing.
Dual-Chamber Reusable Chassis
The medical-grade polymer chassis keeps the mouth, chin, and 95% of facial skin unobstructed, ensuring clear voice communication and zero interference with helmets or eye protection.
Micro-Perforated Filter Core
Replaceable filter cartridges fit securely into the dual chassis chambers, designed for low breathing resistance and efficient multi-shift replacement.
Plan the evaluation workload
Conventional masks are frequently removed because of heat buildup, speech restrictions, or bridge friction. Below is an orientative planning model calculating annual shift exposure and estimated consumable savings.
50 crew × 8h × 212 shifts/year
Design goal vs. ~51% literature baseline
~191 kg plastic saved vs disposable cups
Orientative: 2 replacement units / operator / shift
Intellectual Property & Standards
Proprietary industrial property managed by Elion IP, S.L., accompanied by ISO biocompatibility testing frameworks.
Spanish Utility Model (Official OEPM Grant · ES-1328766 U)
Official statutory patent protection for the industrial invention "Nasal Filter and Nasal Filter Device" registered before the Spanish Patent and Trademark Office (OEPM). Encompasses 20 granted claims covering the ergonomic intranasal chassis, anatomical vestibular elastic seal, and modular cartridge coupling mechanism. Portfolio prosecuted and managed by intellectual property counsel Elion IP, S.L. (Madrid; Ref. B2538P001ESU):
International Patent Strategy & EUIPO Industrial Design
Comprehensive international intellectual property expansion strategy held by AYRO D&H, S.L., coordinated by registered patent attorney Norman Toporcer Korec (Elion IP, S.L., Paseo de la Castellana 150, Madrid):
Biocompatibility Standard (ISO 10993)
ISO 10993 serves as our structured biological safety and non-irritating mucosal contact evaluation framework:
- ISO 10993-5: In vitro cytotoxicity assessment on medical-grade polymers.
- ISO 10993-10: Tests for irritation and mucosal/dermal sensitization during prolonged wear.
- Material Selection: Certified biocompatible, hypoallergenic silicone elastomers.
All registered industrial property assets (OEPM Utility Model ES-1328766 U / U202532076, EUIPO Registered Community Design B2538D002EU, and PCT patentability analysis B2538C003) are managed by intellectual property attorneys Elion IP, S.L. (Paseo de la Castellana 150, 4ºD, 28046 Madrid, Spain; CIF ESB09951807; elionip.com).
The grant of a utility model or design registration confers exclusive technology rights; it does not constitute or substitute CE conformity marking or EN 149 (FFP2/FFP3) certification under Personal Protective Equipment Regulation (EU) 2016/425. Filtration efficiency and occupational attenuation remain subject to official accredited laboratory testing within AYRO's technical development roadmap.