Technical Features:
·With filter which can cut off viruses and bacteria
·Liquid storage bottle is made of corrosion-resistant plastic, reusable, easy clean and disnfect
·With 2pcs tubes, a bag
·X-ray translucent 
Parameters:
·Limit negative pressure: >= 0.04Mpa
·Peak flow rate:   >= 20L/min
·Bottle capacity: 200ml
·Dimensions:17*5*18cm
·Weight: 0.2kg