Creating personal protective equipment using ultrasonic technology and nonwoven materials offers several advantages over sewing, including infection control, according to an article on the Medical Design and Outsourcing website.
The low cost and utility of nonwoven fabrics have made them key in the battle to prevent the spread of infection.
Along with personal protective equipment (PPE) such as surgical caps and N95 masks, gowns, scrubs and foot covers, disposable nonwovens can also be used for absorbent products ranging from shields and pads to diapers, underwear and disposable filters.
Compared to sewing, ultrasonic creates high-strength, high-integrity seams without the need for thread, and without creating mechanical holes in the fabric that can hold and conceal microorganisms or contaminants.
Ventilation and Filtering for Infection Control 
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