Details
Seating & Pressure Relief
3" Seat Cushion
MOBB Home Healthcare · SKU: MHHC3 · Canada
Engineered to improve seating comfort and deliver reliable pressure relief during extended sitting. High-quality foam distributes weight evenly across the seating surface, minimizing pressure points and supporting proper posture — from healthcare facilities and wheelchairs to offices and commercial environments.
Available sizes
16″ × 16″ × 3″
18″ × 18″ × 3″
18″ × 16″ × 3″
20″ × 16″ × 3″
3″
Thickness
4
Size Options
Foam
Material
Black
Colour
Daily
Use Ready
Specifications
Technical details & size guide
16″ × 16″
× 3″ H
Standard chairs, compact seating, pediatric use
Most Popular
18″ × 18″
× 3″ H
Office & dining chairs, general clinical seating
18″ × 16″
× 3″ H
Standard wheelchairs, transport chairs, narrow seats
20″ × 16″
× 3″ H
Wide wheelchairs, bariatric seating, extended coverage
Thickness
3 inches
Material
High-density Foam
Colour
Black
SKU
MHHC3
Size Options
4 Available
Brand
MOBB Home Healthcare
Key Features
What sets it apart
Provides consistent pressure relief during long sitting periods and extended shifts
Supports proper posture and seating stability for reduced fatigue
Durable high-density foam construction — engineered for daily commercial use
Compatible with chairs, wheelchairs, transport chairs, and general seating areas
Meets healthcare and institutional safety standards for clinical environments
Available in 4 sizes — fits standard, wide, and wheelchair seating configurations
Where it's used
Healthcare & Clinical
Hospitals, long-term care, and rehabilitation facilities requiring daily-use seating support.
Office & Workplace
Desk workers, call centres, and anyone in extended sitting positions throughout the day.
Restaurants & Commercial
Dining chairs, commercial seating, and institutional environments across Canada.
How to Use
Step-by-step guide
1
Select the Right Size
Measure your chair's seat width and depth before use. Choose the size that best matches your seating surface — sizing up slightly is preferable to sizing down for full coverage.
2
Place Evenly on the Seat
Lay the cushion flat and centred on the seating surface, ensuring all four corners sit flush with no overhang that could cause imbalance.
3
Sit Centred for Even Weight Distribution
Position yourself centrally on the cushion so your weight distributes evenly across the foam surface, maximising pressure relief and postural support.
4
Use During Long Sitting Periods
Keep the cushion in place throughout extended shifts, work sessions, or rest periods for continuous comfort and pressure management.
5
Clean Regularly with Mild Disinfectant
Wipe the foam surface with a mild disinfectant solution after each use session, especially in clinical environments. Allow to dry fully before reuse.
Choosing the Right Size
For standard office and dining chairs, the 18″ × 18″ fits most. For wheelchairs, the 18″ × 16″ or 20″ × 16″ are the most compatible options. When in doubt, measure your seat width from armrest to armrest and depth from front edge to back.
Frequently Asked Questions
Common questions answered
What is a seat cushion used for?
A seat cushion provides comfort, redistributes pressure away from concentrated contact points, and supports proper posture during sitting. The MOBB 3″ Seat Cushion is specifically designed for extended use in clinical, commercial, and home environments where standard seating provides insufficient support.
Is it suitable for long sitting hours?
Yes — it is specifically designed for extended use including full-day work shifts, long-haul travel, and clinical situations where a person may be seated for several hours consecutively. The high-density foam maintains its structural integrity and pressure-relief properties throughout sustained use.
Can it be used on wheelchairs?
Yes — the 18″ × 16″ and 20″ × 16″ sizes are specifically suited for standard and wide wheelchairs. The foam provides the pressure relief essential for wheelchair users who are seated for extended periods, helping prevent discomfort and skin breakdown associated with prolonged static positioning.
Does it help with back pain?
Yes. By elevating the seated position by 3 inches and distributing weight more evenly, the cushion helps reduce the compressive forces on the lumbar spine. This promotes better pelvic tilt and spinal alignment, which can meaningfully reduce lower back strain during long sitting periods.
How do I clean it?
Wipe the foam surface with a mild disinfectant solution using a damp cloth. Avoid saturating the foam or using harsh chemical cleaners that may break down the foam structure. Allow to air dry completely before the next use. For clinical settings, follow your facility's standard equipment disinfection protocol.
What sizes are available?
Four sizes are available: 16″ × 16″ for compact and standard chairs; 18″ × 18″ for typical office and dining chairs; 18″ × 16″ for standard wheelchairs; and 20″ × 16″ for wide wheelchairs and bariatric seating needs. All sizes share the same 3″ thickness for consistent pressure relief performance.
Pressure Relief
Healthcare Grade
4 Size Options
Made for Canada