Drive Medical Med-Aire 8" Alternating Pressure & Low Air Loss Mattress System

For patients who are immobile, bedridden, or unable to reposition themselves independently, a standard mattress creates a clinical problem: sustained pressure on the same tissue contact points — the sacrum, heels, trochanters, and scapulae — that causes the progressive tissue damage leading to pressure injuries. The Med-Aire 8" Alternating Pressure and Low Air Loss Mattress Replacement System (SKU 14027) addresses this with two simultaneous mechanisms: an alternating pressure cycle that redistributes peak pressure every 10 minutes by inflating and deflating cells in sequence, and continuous low air loss through nine laser-perforated air cells that maintains airflow at the skin surface, reducing the heat and moisture buildup that accelerates skin breakdown. Together these functions provide the dual-mode support recommended for patients at moderate to high pressure injury risk in home and long-term care environments.

Who This Is For

• Bedridden or immobile patients at moderate to high pressure injury risk who cannot independently reposition and require an active support surface to manage sustained tissue pressure
• Patients with existing Stage 1 or Stage 2 pressure injuries who need both pressure redistribution and microclimate management to support wound healing conditions
• Home caregivers managing a fully or partially dependent loved one in a hospital bed at home who need a clinical-grade active mattress system without facility-level resources
• Patients with moisture-related skin complications — incontinence-associated dermatitis, maceration, or heat-related skin breakdown — where surface dryness is a therapeutic priority
• Long-term care facilities and hospice providers equipping homecare hospital beds with an appropriately rated active support surface for extended-stay patients

Key Features

• Active Dual-Function System — Alternating Pressure and Low Air Loss Combined: Most active support surfaces provide one function or the other. The Med-Aire 8" provides both simultaneously. The alternating pressure cycle uses 20 individual 8-inch air cells that inflate and deflate in alternating groups on a 10-minute cycle — continuously shifting the peak pressure points away from vulnerable tissue before ischemia can progress. Simultaneously, nine of those cells are laser-perforated to allow a continuous stream of conditioned air to reach the skin surface through the mattress cover, creating the low air loss microclimate that reduces surface temperature and moisture vapor — the two primary environmental drivers of skin breakdown in bedridden patients.
• 9 Laser-Perforated Air Cells — Continuous Low Air Loss Airflow: The laser perforation technology creates thousands of microscopic air flow channels in each of the nine dedicated low air loss cells. Unlike older low air loss systems that used large pores or fabric panels that could clog or deteriorate, the laser-perforated design provides consistent, evenly distributed airflow across the full contact surface at a rate calibrated to maintain skin surface dryness without excessive drying that could compromise fragile wound tissue. The 8 LPM pump output maintains this airflow continuously throughout use.
• 3 Static Head-Section Cells — Pillow Function: The three air cells in the head section of the mattress are static — they do not participate in the alternating pressure cycle. This design provides consistent, stable head and neck support that does not change during the cycle, maintaining a stable sleeping position and preventing the subtle positional disruption that can disturb sleep when the head zone cycles with the rest of the surface. The static head zone functions as an integrated pillow, eliminating the need for a separate head pad in most use cases.
• 350 lb Weight Capacity — Full Immersion Without Bottoming Out: The 8-inch cell depth provides sufficient air volume to support users up to 350 lbs throughout the full alternating cycle without bottoming out — the point at which deflating cells fully compress and the patient's bony prominences contact the mattress base rather than the air cushion. Bottoming out negates the pressure redistribution benefit entirely; the 8-inch depth ensures this does not occur at rated capacity.
• Whisper Quiet Pump with Visual and Audible Alarms: The pump operates at low noise output for use in home sleeping environments where pump noise would disrupt patient or caregiver sleep. Visual and audible low-pressure alarms alert the caregiver when pump pressure drops below the therapeutic threshold — caused by power interruption, pump malfunction, or air cell leak — ensuring the system failure is detected before the patient is left on a non-functional surface for an extended period.
• CPR Valve — Rapid Deflation in Under 20 Seconds: A high-visibility CPR valve allows the entire mattress to be deflated rapidly in under 20 seconds to provide a firm, flat emergency CPR surface. This is a clinical safety requirement for any active support surface used in environments where emergency resuscitation may be needed — the alternating pressure surface cannot provide the firm chest compression platform required for effective CPR without full deflation.
• EZ Lock/Quick Release Tubing: The pump connects to the mattress via EZ Lock quick-release tubing that allows fast, secure one-handed disconnection for patient transport, mattress changes, or pump service without tools or complicated tube management. Secure locking prevents accidental disconnection during routine patient care.
• Premium 2-Way Stretch Nylon Cover — Fluid-Resistant, Low-Shear, Vapor-Permeable: The mattress cover is made from 2-way stretch nylon that conforms to the patient's body contours without restricting the alternating pressure cycle underneath. Fluid resistance protects the air cells from incontinence contamination. The low-shear surface reduces friction forces on fragile periwound and at-risk skin during repositioning. Vapor permeability allows the low air loss airflow to pass through the cover to the skin surface — a cover that blocks airflow defeats the low air loss function entirely.

Alternating Pressure vs. Low Air Loss — Why Both Matter

• Alternating pressure addresses the primary cause of pressure injury: sustained interface pressure that restricts capillary blood flow to tissue. By cycling pressure every 10 minutes, the system ensures no single tissue area is under sustained loading long enough for ischemic damage to progress.
• Low air loss addresses the secondary causes: heat and moisture at the skin surface. Elevated skin temperature increases metabolic demand on already-compromised tissue; moisture softens the skin and dramatically reduces its tolerance to friction and shear. Maintaining a cool, dry surface microclimate reduces these risk factors independently of pressure management.
• For patients at highest risk — those who are completely immobile, have existing skin breakdown, or are in environments where turning schedules cannot be strictly maintained — both mechanisms together provide substantially better skin protection than either alone.

Technical Specifications