Heat and Moisture Exchanger Filter

The heat and moisture exchanger filter is intended for providing optimal moisture and temperature output with low resistance t

CPAP Mask

The Reusable CPAP Mask is intended to provide an interface for application of CPAP or bi-level therapy to patients who have been prescribed CPAP thera

Authorities discourage travel, waive refund charges

A passenger enters Beijing Capital International Airport in Beijing on Wednesday amid upgraded epidemic prevention measures. CHENG GONG/FOR CHINA DA

Chinese researchers develop anti-SARS-CoV-2 nanomaterial

BEIJING -- Chinese researchers have recently developed a nanomaterial that targets the spike protein of coronavirus SARS-CoV-2 variants, including Del

two years after recovering from covid-19, the risk of brain and mental illness remains higher

Millions of people who have had Covid-19 still face a higher risk of neurological and psychiatric conditions, including brain fog, dementia and psycho

Multiple applications of the laryngeal mask airway

The laryngeal mask was successfully developed and used clinically in the mid-1980s and introduced in China in the 1990s. Great progress has been made