Assessment of Fit of Novel N95 Style Transparent Face Masks

NCT06570161 — Not applicable, Withdrawn, Brigham and Women's Hospital

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Assessment of User Preference and Fit of Novel Transparent Face Masks

RegistryNCT06570161
StatusWithdrawn - funding terminated
PhaseNot applicable
Study typeInterventional; randomized, crossover, masking: none, device feasibility
SponsorBrigham and Women's Hospital (Other)
ConditionsRespiratory Disease, Infection, Coronavirus, Respiratory Tract Infections
InterventionsSEEUS95 Transparent mask, CrystalGuard Mask, N95 face mask (Device)
Datesstart 2024-10-01 (estimated), primary completion 2025-04-30 (estimated), completion 2025-05-30 (estimated), first posted 2024-08-26, last updated 2025-07-28
Locations1 site in United States

Related Papers Related Patents Related Grants Related Experts
All trials for Respiratory Disease All trials for Infection, Coronavirus All trials of SEEUS95 Transparent mask All trials of CrystalGuard Mask

-Summary

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.

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+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.

+Arms and interventions

ArmTypeInterventionsDescription
SEEUS95ExperimentalDevice: SEEUS95 Transparent maskTransparent mask developed by SEEUS95
CrystalGuardExperimentalDevice: CrystalGuard MaskTransparent mask developed at BWH
N95Active comparatorDevice: N95 face maskStandard N95 face mask
  • SEEUS95 Transparent mask (Device), also known as SEEUS95: SEEUS95 developed transparent filtering mask
  • CrystalGuard Mask (Device), also known as CrystalGuard: CrystalGuard transparent mask
  • N95 face mask (Device), also known as N95: Standard N95 style face mask

+Outcome measures

Primary outcomes

  • Acceptability [immediately after mask wearing]: User acceptability and comfort wearing the assigned mask graded on a likert scale

Secondary outcomes

  • Mask preference [immediately after completion of all three arms]: Discrete choice of SEEUS-95, CrystalGuard versus standard N-95 mask selected by study participants

+Eligibility

Sex: All, ages: 18 Years to any, accepts healthy volunteers

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

+Locations (1)

FacilityCityCountryStatus
Brigham and Women's HospitalBoston, MassachusettsUnited States

+Investigators