Physiological & Psychological Damage Caused by Masks

The physiological impact of wearing an N95 mask during hemodialysis as a precaution against SARS in patients with end-stage renal disease

Tze-Wah Kao; Kuo-Chiang Huang; Yu-Ling Huang; Tun-Jun Tsai; Bor-Shen Hsieh; Ming-Shiou Wu

Wearing an N95 mask for 4 hours during HD significantly reduced PaO2 and increased respiratory adverse effects in ESRD patients.

Read Article

Respiratory consequences of N95-type Mask usage in pregnant healthcare workers—a controlled clinical study

Pearl Shuang Ye Tong; Anita Sugam Kale; Kailyn Ng; Amelia Peiwen Loke; Mahesh Arjandas Choolani; Chin Leong Lim; Yiong Huak Chan; Yap Seng Chong; Paul Anantharajah Tambyah; Eu-Leong Yong

Breathing through N95 mask materials have been shown to impede gaseous exchange and impose an additional workload on the metabolic system of pregnant healthcare workers, and this needs to be taken into consideration in guidelines for respirator use. The benefits of using N95 mask to prevent serious emerging infectious diseases should be weighed against potential respiratory consequences associated with extended N95 respirator usage.

Read Article

Carbon dioxide rebreathing in respiratory protective devices: influence of speech and work rate in full-face masks

Carmen L Smith; Jane L Whitelaw; Brian Davies

Carbon dioxide (CO2) rebreathing in respiratory protective devices (RPDs) has been highlighted as a key concern regarding respirator use.

Read Article

Carbon dioxide re‐breathing with close fitting face respirator masks

S. J. Fletcher; M. Clark; P. J. Stanley

In the event of an influenza pandemic, large numbers of healthcare workers may need to wear these respirators for prolonged periods and problems with hypercapnia might reduce the tolerability of these devices.

Read Article

Preliminary report on surgical mask induced deoxygenation during major surgery

A Beder; U Büyükkoçak; H Sabuncuoğlu; Z A Keskil; S Keskil

Study revealed a decrease in the oxygen saturation of arterial pulsations (SpO2) and a slight increase in pulse rates compared to preoperative values in all surgeon groups. The decrease was more prominent in the surgeons aged over 35.

Read Article

Addressing the indirect effects of COVID-19 on the health of children and young people

Neil Chanchlani; Francine Buchanan; Peter J. Gill

Although severe COVID-19 seems to be rare in children and young people, this demographic group will likely experience a high burden of indirect physical, social and mental health effects related to reduced nonurgent care and general pandemic control measures. We owe it to our children and young people to proactively measure the indirect effects of the COVID-19 pandemic on their health and take steps to mitigate the collateral damage.

Read Article

Protective Facemask Impact on Human Thermoregulation: An Overview

Raymond J. Roberge; Jung-Hyun Kim; Aitor Coca

The use of protective facemasks (PFMs) negatively impacts respiratory and dermal mechanisms of human thermoregulation through impairment of convection, evaporation, and radiation processes. 

Read Article

Effects of wearing N95 and surgical facemasks on heart rate, thermal stress and subjective sensations

Y. Li; H. Tokura; Y.P. Guo; A.S.W. Wong; T. Wong; J. Chung; E. Newton

The results from the experiment demonstrate that heart rate, microclimate (temperature, humidity) and subjective ratings were significantly influenced by the wearing of different kinds of facemasks.

Read Article

Physiological impact of the N95 filtering facepiece respirator on healthcare workers

Raymond J Roberge MD MPH; Aitor Coca PhD; W Jon Williams PhD; Jeffrey B Powell MSc; Andrew J Palmiero

Healthcare worker use of FFR and FFR-with-valve for 1 hour at clinically realistic low work rates had only mild physiological impact. At a low work rate, for up to 1 hour, FFR-with-valve may offer no physiological advantage over FFR-without-valve. The mixed inhalation/exhalation O2 and CO2 levels in the FFR VD microenvironment did not meet the Occupational Safety and Health Administration’s standards for workplace ambient O2 and CO2 concentrations.

Read Article

Coronavirus: Mask wearing ‘risks isolating' deaf people

Carys Betteley

People who are deaf or have hearing loss will struggle to communicate if more people wear non-medical face masks during the coronavirus pandemic.

Read Article

Are you happy or sad? How wearing face masks can impact children’s ability to read emotions

Rachael Katz; Helen Shwe Hadani

Attempt to “help children feel at ease in a world of expressionless faces during COVID-19.”

Read Article