• Health Technologies
  • Industrial Technologies

Lightweight Clinical Full Face Mask

PI: Yin Chiang BOEY, Deborah KHOO

Opportunity

According to the World Health Organization’s COVID-19 dashboard, nearly 4 million cases of death have been reported as of 20 May 2021. As nations across the world rush to administer vaccine doses, medical protective masks are playing an important role in containing the pace of infection. Resultantly, the demand for face masks is growing robustly and is projected to reach US$4.11 billion by the end of 2027, growing at a CAGR of 8.5% between 2019 and 2027.

Despite proven efficacy of face masks in stopping the spread of infectious and contagious diseases, full face masks in the market currently-like the full face CPAP mask or the full face respirator-are heavy and prone to causing wearer fatigue during prolonged usage; as well as uncomfortable and difficult to put on for users who wear spectacles. In the healthcare context, they also pose considerable challenges for medical professionals to effectively interact with patients and one another.

In view of the existing COVID-19 situation, the development of a full face mask that can fulfil stringent low-leak requirements while offering fit and comfort for the wearer in a clinical setting is in demand-particularly one that can be used by medical workers or patients by varying fitting pressure.

Technology

With its shield material made up of polycarbonate and 3D printed adapters polypropylene, the novel full face mask promises to be lightweight, safe and comfortable for wearers. In addition, the silicone seal moulds easily to different facial features with or without spectacles.

The contoured lower face piece enables users to not only add a motor fan and high-efficiency particulate air (HEPA) filter to effect filtration, but also wear an N95 mask as an additional layer of protection. The strategic positioning of the quick release clip on the front of the mask also helps reduce incidents of self-contamination compared to conventional masks during removal.

As one of the aims of the developed full face mask is to double up as a Powered Air-Purifying Respirator (PAPR) and non-invasive ventilation, it considers factors such as facilitating ease of communication, extended use and charging. Hence besides providing for the option of adding a microphone, the design also allows users to swap motors when battery is low without having to unmask entirely.

Document Status

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Technology Readiness Level (TRL)

3

Proof-of-concept with needs validated

Applications & Advantages

  • 01

    Lightweight and suitable for use by users with spectacles and diverse facial features—comfortable for wearing for prolonged durations

  • 02

    Contoured lower face piece enables users to add on a motor fan and HEPA filter to effect filtration

  • 03

    Quick release clip situated on front of mask reduces chance of self-contamination during removal

  • 04

    Option to add on microphone for better communication

  • 05

    Ability to swap motors when battery is low without complete mask removal—enabling extended use of PAPR

  • 06

    Battery can be charged using a standard microUSB charging port