In 2003, the SARS epidemic in Hong Kong continued for 106 days, 1755 people were infected and took 299 lives. A Hong Kong professional, in disinfection and sanitizing industry, Mr Man, formed a team of experts to develop BioEm Air Sanitizing and Purifying Liquid with the use of a variety of natural plant extracts. The liquid is patented. BioEm is committed to a natural, safe and effective patented product that enhances indoor air quality against a wide range of influenza and bacteria for public health care.