1. Long life piston cylinder which requires no lubrication or daily maintenance produces no pollution to the environment.
2. Provided with three kinds of electrical sources, AC power, extemal DC power, and intermal battery. They may be attached to the cigar lighter (DC 12V ) directly when used on the vehicles such as ambulance.
3. The intermal battery is charged with constant voltage and limited current while the unit is working or being attached to AC100V-240V 50/60 Hz or extermal DC 12V Power supply. The capacity of the battery is respectively indicated by green, yellow and orange LEDs.
4. Overflow protection device can safely and efficiently prevent the liquid from entering into pump. Bottles made of plastic material are transparent, durable and convenient for cleaning.
5. Body made of plastic material is handy and beautiful. The wallmounting frame makes it widely used in the room, on vehicle and conveniently hung on the side of the wheelchair.