Invacare microAIR® MA900 — Lateral Rotation & True Low Air Loss Mattress System, 20°/40° Rotation, Up to 1000 lb Capacity

Rotation and moisture management in one system. Continuous, customizable, built for bariatric care. The Invacare microAIR® MA900 combines two distinct therapy mechanisms in a single mattress system: alternating lateral rotation therapy and true low air loss. Continuous lateral rotation gently and repeatedly tilts the patient between 20° and 40° angles on a customizable cycle — a therapy that assists with pressure redistribution, secretion mobilization for respiratory benefit, and reduces the manual repositioning burden on caregivers for patients who tolerate rotation therapy. Running simultaneously, true low air loss technology manages moisture and temperature at the skin surface, addressing the microclimate conditions that accelerate skin breakdown. Built-in side bolsters add a layer of safety against patient edge migration during the rotation cycle, and a cable management system keeps cords organized and off the floor, reducing trip hazards in the care environment. The oversized, highly vapor-permeable quilted nylon top cover provides low shear, reduced friction, and excellent moisture protection. Available in three sizes — a standard 36" width rated to 600 lbs, and 42" or 48" widths rated to 1000 lbs for bariatric care needs. Authorized Invacare dealer.

✔ Continuous Lateral Rotation Therapy at 20° and 40° Angles
✔ True Low Air Loss — Moisture & Temperature Management
✔ Customizable Pump Cycle Times — 3 to 95 Minutes
✔ Built-In Side Bolsters for Added Safety
✔ Cable Management System — Reduces Trip Hazards
✔ Oversized Quilted Nylon Top Cover — Low Shear, Reduced Friction
✔ Available in 3 Sizes — 36" (600 lb), 42" or 48" (1000 lb)
✔ Can Remain in Rotation Mode During Seated/Sit-Up Position
✔ Continuous Operation Control Unit — 1275 LPM Pump Airflow
✔ Authorized Invacare Dealer — Wheelchair Authority

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Size & Model Guide

Model	Dimensions	Weight Capacity	Best For
MA900	36"W × 80"L × 10"H	600 lbs	Standard width bed frames; most home care and facility beds
MA900B42	42"W × 80"L × 10"H	1,000 lbs	Wide bariatric bed frames; larger patients
MA900B48	48"W × 80"L × 10"H	1,000 lbs	Maximum-width bariatric bed frames

Note: Select the model matching your bed frame's sleep surface width. The 600 lb capacity applies only to the 36" model — the 42" and 48" models are rated to 1000 lbs. Call 1-866-218-0902 if you need help confirming the right model for your bed frame and patient weight.

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Product Specifications

Product Name	Invacare microAIR® MA900 Lateral Rotation True Low Air Loss Mattress
Manufacturer	Invacare
Therapy Type	Continuous lateral rotation + true low air loss — combination therapy
Rotation Angles	20° and 40°
Mattress Height	10"
Base Material	Woven polyester with PVC
Cover Material	Nylon woven with PU coating
Cell Material	Nylon with PU backing
Side Bolsters	Built-in — added safety against edge migration
Control Unit Dimensions	17.7" × 6.8" × 10.8"
Control Unit Weight	13.2 lbs
Maximum Operating Pressure	30 mmHg
Pump Airflow	1275 LPM
Cycle Time Range	3 to 95 minutes — fully customizable
Power Cord	15 ft AC cable, 110–120V, 5A, 60Hz
Operation	Continuous — designed to run without interruption
Power Outage Behavior	Begins deflating within approximately 1 minute without power (laser-cut perforated low air loss design)

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Understanding Lateral Rotation Therapy

Why Lateral Rotation Matters

Lateral rotation therapy continuously and gently tilts the patient from side to side at controlled angles, mimicking the natural repositioning a mobile person performs unconsciously throughout the night. For patients who cannot reposition themselves, this continuous rotation provides several clinical benefits beyond pressure redistribution: it assists in mobilizing pulmonary secretions (helpful for patients at risk of respiratory complications from prolonged immobility), reduces the frequency of manual repositioning caregivers need to perform, and provides ongoing pressure relief at a frequency that static or even alternating-cell mattresses cannot replicate.

20° vs. 40° Rotation Angles

The MA900 offers two distinct rotation angles to match the patient's clinical tolerance and needs. The 20° angle provides gentler rotation appropriate for patients who are more medically fragile or who are just beginning rotation therapy. The 40° angle provides more pronounced rotation for patients who tolerate and benefit from greater repositioning range, typically delivering more effective pressure redistribution and secretion mobilization. The appropriate angle should be selected based on the patient's clinical presentation, tolerance, and the treating clinician's protocol.

Customizable Cycle Time — 3 to 95 Minutes

The cycle time — how long the patient remains rotated to one side before rotating to the other — is adjustable from 3 to 95 minutes, an unusually wide range that allows the therapy to be tailored to the individual patient's specific clinical needs, comfort tolerance, and care protocol. Shorter cycles provide more frequent repositioning for patients at higher pressure injury risk; longer cycles may be appropriate for patients who tolerate sustained positioning better or have other clinical considerations.

Combined With True Low Air Loss

Running simultaneously with the rotation cycle, true low air loss technology continuously manages moisture and temperature at the skin-mattress interface. The laser-cut perforated seam design allows continuous airflow through the mattress surface, keeping the patient's skin drier and cooler throughout the rotation therapy. This combination — rotation for mechanical pressure relief and respiratory benefit, low air loss for moisture and temperature management — addresses two distinct skin breakdown mechanisms simultaneously, similar in principle to the DermaFloat combination systems but adding the rotation mechanism specifically.

Use During Seated Position

The MA900 can remain in rotation mode even when the patient sits up in bed — the rotation therapy does not need to be paused or disabled for the patient to be repositioned to a seated angle, providing continuity of therapy through routine position changes during the day.

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Important: Power Outage Behavior

Because the MA900 is a true low air loss mattress with laser-cut perforated seams designed for continuous airflow, it does not retain inflation for an extended period without power. In the event of a power outage or disconnection, the mattress will typically begin deflating within approximately one minute. This is a meaningful difference from combination systems like the Joerns DermaFloat LAL or APL, which include a dedicated safety cell that maintains inflation for up to 12 hours during a power outage. Facilities and home caregivers using the MA900 should have a plan in place for power continuity or rapid response in the event of an outage, particularly for patients who cannot be quickly repositioned to another surface.

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Who This Mattress Is For

• Patients who would benefit from continuous lateral rotation therapy — including those at risk of respiratory complications from prolonged immobility
• Immobile or minimally mobile patients requiring ongoing pressure redistribution beyond what static or alternating-cell mattresses provide
• Patients with combined pressure and moisture management needs where a single integrated system is preferred over separate devices
• Bariatric patients up to 1000 lbs — using the 42" or 48" wide models
• Patients up to 600 lbs on standard-width bed frames using the 36" model
• Care environments with reliable power continuity, given the mattress's rapid deflation behavior during outages
• Clinicians and facilities wanting customizable rotation angle and cycle time to match individual patient tolerance and protocol

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Delivery Information

This mattress ships via standard ground or freight depending on size and weight. Heavier items and larger bariatric models may require freight shipping with liftgate delivery options for locations without a loading dock. Call 1-866-218-0902 to confirm delivery logistics for your location.

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Why Buy From Wheelchair Authority?

• Authorized Invacare dealer — genuine products with full manufacturer warranty support
• 110% Low Price Guarantee — we beat any competitor's price
• Mobility and care specialists on the phone — call 1-866-218-0902 Mon–Fri for clinical and product guidance
• Email support: orders@wheelchairauthority.com
• Full range of therapeutic mattresses, home care beds, patient lifts, and accessories

Questions about the microAIR MA900 or need help comparing it with other low air loss mattress options? Call 1-866-218-0902 — our specialists are ready to help.