Low Air-loss Mattress
A low air loss mattress (LAL) replaces the standard mattress and overlay on a homecare bed frame. This is an electric device with a pump that runs continuously. The pump is connected to an air mattress that has hundreds of tiny holes in the top.

Low air-loss mattresses work by distributing the patients weight throughout the entire surface area that they touch. It greatly reduces pressure from healing wounds, and prevents new wounds from forming.

Moisture causes tissue breakdown. The air mattress is covered with a quilt like layer that allows air to flow through it. With a constant flow of air supplied by the pump, any moisture present is eliminated (sweat). Despite the constant airflow, incontinent patients must be promptly changed.

Additionally, the mattress covers are designed to reduce friction. This aids in preventing skin from folding over itself which can cause new wounds. It also prevents friction against wound closures.

Alternating Pressure Mattresses
Alternating Pressure Mattresses (APP) work very similarly to low air-loss. However, in these systems the mattress consists of several air chambers. The pump alternates the chambers that are filled. This moves the pressure points around the body and promotes circulation.

Both types of mattresses are coved by insurance when medically necessary.