Major distinguishing criteria for secretion aspirators are:
- Size and weight
- Suction capacity (liters per minute)
- Absorption capacity of the secretion canister
- Company via mains / rechargeable battery
Depending on the application, three different device designs are recommended:
- Mains-dependent, electrically operated suction devices are mainly suitable for home use.
- Mains-independent, battery-powered suction units are ideal for use on the move; they are portable, have a rechargeable battery and are therefore mainly suitable for mobile use.
- Manual suction pumps are designed for emergency use. They do not require a power supply and are operated either by hand or by a foot pedal.
Decisive for the right selection are also the frequency of the suction requirement and the required suction power (for viscous or liquid secretions).
Secretion suction devices are also offered as combination devices which additionally allow inhalation. After laryngectomy or a tracheotomy and thus the loss of natural moisture retention of the mucous membranes, other precautions are necessary to prevent severe irritation of the mucous membranes. In most cases, such irritations lead to increased secretion, coughing irritation, crusting and bark formation.