Description
A great air mattress for patients who have a high and medium risk of developing bed sores
This lightweight and easy-to-use air mattress with its alternating pressure mattress system and low air loss feature is specifically designed to prevent and treat pressure injuries effectively and promote better patient comfort. It is powered by an electric pump that regulates the air pressure in the mattress.
In addition, as with all low air-loss mattresses, this MicroAir mattress was designed to help manage moisture buildup and maintain a dry environment for the patient. With these features, the air mattress offers an effective solution for overall patient well-being.


What is an alternating pressure air mattress and how is it helpful?
An alternating pressure mattress is designed to prevent and treat pressure sores, commonly known as bedsores, which can develop when someone spends long periods in bed without movement. The mattress achieves this by inflating and deflating air cells in a sequence, which redistributes pressure across the body and helps to maintain healthy blood flow.
Here's how it works: The mattress is made up of several air-filled cells that are organized in rows. These cells alternately inflate and deflate, which means that at any given time, different parts of your body are being supported or relieved of pressure. This constant shifting helps to simulate the body's natural movements, reducing the risk of prolonged pressure on any single area. This process is critical for patients who are bedridden because it helps prevent the formation of pressure ulcers by keeping blood circulating effectively and avoiding pressure buildup that can damage the skin and underlying tissues.
Additionally, these mattresses can enhance circulation and provide a gentle massaging effect, further promoting skin health and comfort for those who spend extended periods in bed.
Features
Heel slope: Natural heel slope design reduces pressure on the heel area for enhanced comfort and pressure relief.
Alarms: Equipped with an audio and visual alarm system to alert users of power outages or low pressure levels promptly.
Top cover: Durable quilted nylon top cover offers comfort, low friction for easy positioning, high vapor permeability, and moisture protection.
Cell-in-cell design: Innovative design prevents bottoming out during power failures, ensuring continuous support and safety.
Cells: Soft nylon urethane backing on cells facilitates easy cleaning, resists bacterial growth, and maintains a hygienic environment for patients.
Sizes
- Mattress dimensions are 36"W x 80"L x 8"H
- Weight capacity is 350 lbs.
Specifications
-
Can be set to alternating or static mode
- Alternating compressor flow rate is 5 LPM
- Alternating cycle time is 10 minutes
Manufacturer Resources
Check out other Microair low-air-loss mattresses
Invacare has other MicroAir air mattresses. Be sure to check them out if this MA500 doesn't look right for you.
You can also download the catalog if you would like to compare all MicroAir mattresses. Or compare all right here!

- For those with high or mid risk of developing bedsores
- Alternating pressure redistributes pressure points
- Low air loss helps keep skin cool and dry
- Natural heel slope helps decrease pressure in patient’s vulnerable heel area
- Supports up to 350 lbs.
Specifications
CONTROL UNIT | |
Electrical Power: | 110-120 VAC, 60 Hz |
Fuse Rating: | T1AH, 250 V |
Mode of Operation: | Continuous |
Operating Pressure | |
Minimum: | 14 ± 6 mmHg |
Maximum: | 60 ± 6 mmHg |
Max Flow Rate: | 5 LPM |
Cycle Time: | 10 minutes |
Operating Conditions | |
Ambient Temperature: | 59° - 95° F |
Relative Humidity: | 15% - 90% Non-condensing |
Atmospheric Pressure: | 800 - 1060 hPa |
Storage Temperature: | 41°F - 140° F |
Size: | 10.1"L x 4.5"W x 8.3"H |
Weight: | 5 lbs. |
MATTRESS | |
Cell Number: | 18 cells |
Cover Material: | Vapor permeableAnti-microbial Blue nylon w/ PU coating |
Base Material: | Black polyester w/ PVC coating |
Mattress Size: | 80"L x 36"W x 8"H |
Mattress Weight: | 22 lbs. |
Weight Capacity: | 350 lbs. |
Limited Warranty | |
Power Unit: | 1 year |
Mattress: | 1 year |
Cover: | 1 year |
Additional Information
Mattress Features: |
Alternating Pressure |
Mattress Features: |
Low Air Loss |
Mattress Width: |
35" - 36" |
Mattress Height: |
8" |
Mattress Length: |
80" |
User Weight: |
Up to 400 lbs. |
Pump Flow Rate: |
4 - 6 lpm |
_nonreturnable: |
yes |