Objectives Respiratory protective equipment is critical to protect healthcare workers from
COVID-19 infection, which includes filtering facepiece respirators (FFP3). There are reports …

To increase the insulating properties of elastomeric half-masks, it is suggested to perforate
the obturator in the area of the nasal bridge, chin and cheeks, which allows for adjustment in …

Sažetak The level of occupational respiratory diseases among workers in the mining,
machine-building and metallurgical industries remains high. The most common …

Sažetak Kako bi se povećala izolacijska svojstva elastomernih polumaski, predlaže se
perforacija brtve u području hrpta nosa, brade i obraza, što omogućuje promjenu njezine …

This research investigated the relationship between face shape and respirator fit, with a
focus on enhancing the fit and design of filtering facepiece respirators (FFRs). The study …