Electrically heated respirator
US12268909B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 27, 2021 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2209/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A set of designs for an electrically heated respirator/face mask to kill or deactivate airborne viruses and bacteria by creating a seamless thermal and/or humidity chamber/barrier around the wearer's nose and mouth area; in addition to efficiently filtering the tiny particles according to NIOSH N95 standards, it reduces the chance of contracting the disease. The designs include various combinations: a disposable or reusable N95 respirator with or without an exhalation valve, disposable or reusable medical face mask, both with or without integrated and replaceable filter layers, and a reusable respirator with filter cartridges. Each design comprises multiple layers with an active thermal filter with a heating element, which is made of graphene. The respirator is connected via a USB cable to a power unit. A control module is used to turn the device on and off and optionally control the inner temperature and humidity through sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.