A suction machine, or suction pump, is a medical device used to remove mucus, blood, saliva, and other fluids from a patient's airways. It's commonly employed in situations where a person has difficulty clearing their air passages, often due to surgery, illness, or other medical conditions.

There are various types of suction machines designed for different medical applications. Some common types include:

1. *Portable Suction Units:* Compact and mobile devices for use in emergencies or on the go.

2. *Hospital-Grade Suction Machines:* Larger units used in medical facilities for more extensive suction needs.

3. *Battery-Powered Suction Devices:* Operate on rechargeable batteries, providing flexibility in various settings.

4. *Manual Suction Devices:* Handheld devices operated by medical personnel for controlled suction.

5. *Home Suction Devices:* Smaller units designed for home use, often prescribed for patients with respiratory conditions.