Assessment of Fit of Novel N95 Style Transparent Face Masks

Purpose

Face masks have become a critically important public health intervention after the COVID-19 pandemic. Multiple types of masks ranging from full face filtering to cloth masks have been developed and commercialized to facilitate protection against respiratory pathogens. Most of these systems are made with opaque fabrics and may prevent individuals from expressing emotions or for those who are deaf and hard of hearing, communicating. To date, few transparent face masks which also confer respiratory pathogen protection have been developed. This study will test the feasability and acceptability of two new masks, the SEEUS-95 mask and CrystalGuard mask which are both transparent versions of N-95 filtering face masks.

Conditions

  • Respiratory Disease
  • Infection, Coronavirus
  • Respiratory Tract Infections

Eligibility

Eligible Ages
Over 18 Years
Eligible Genders
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • >18 years old - No history of asthma, restrictive lung disease, interstitial lung disease, or emphysema - Lack of significant facial hair that precludes wearing a N-95 mask

Exclusion Criteria

  • Less than 18 years old - Unable to smell Bitrex solution used for fit testing

Study Design

Phase
N/A
Study Type
Interventional
Allocation
Randomized
Intervention Model
Crossover Assignment
Intervention Model Description
Randomized crossover design
Primary Purpose
Device Feasibility
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
SEEUS95
Transparent mask developed by SEEUS95
  • Device: SEEUS95 Transparent mask
    SEEUS95 developed transparent filtering mask
    Other names:
    • SEEUS95
Experimental
CrystalGuard
Transparent mask developed at BWH
  • Device: CrystalGuard Mask
    CrystalGuard transparent mask
    Other names:
    • CrystalGuard
Active Comparator
N95
Standard N95 face mask
  • Device: N95 face mask
    Standard N95 style face mask
    Other names:
    • N95

Recruiting Locations

More Details

NCT ID
NCT06570161
Status
Not yet recruiting
Sponsor
Brigham and Women's Hospital

Study Contact

Peter Chai, MD
617-732-5640
pchai@bwh.harvard.edu

Detailed Description

This is a randomized crossover trial to evaluate the feasibility, acceptability and choice between the use of the SEEUS-95, CrystalGuard transparent face masks or a standard N95 mask. Otherwise healthy individuals will be prescreened and then scheduled for a single study visit. Participants will be randomized to wear each of the three masks (SEEUS-95, CrystalGuard, N95). They will be taught how to wear the mask, and we will assist participants with correctly wearing the mask for a good fit. Next, participants will undergo standard FIT testing where a clear hood will be placed over the participant's head, and a bitter solution (Bitrex) is sprayed into the hood. A positive test is indicated if the participant is able to taste Bitrex demonstrating that there is a detected leak within the mask. After a few minute washout period, participants will undergo FIT testing of subsequent masks. We will ask participants to rate the comfort of wearing the masks, willingness to wear masks in public and suggestions for improvement in mask design. Finally, we will conduct a discrete choice test to ask participants which mask they would prefer to wear in public.