Embedded Files
homemade face masks based on duckbill-shaped respirators
*DISCLAIMER: NO HOMEMADE MASK can provide the guaranteed protection of certified personal protective equipment (PPE)
*DISCLAIMER: NO HOMEMADE MASK can provide the guaranteed protection of certified personal protective equipment (PPE)
COTTON FABRIC
COTTON FABRIC
Two layers of 100% cotton fabric
Pocket for inserting optional filter material
Features a single tie that rests on the back of neck for easy on/off
WATCH VIDEO INSTRUCTIONS:
WATCH VIDEO INSTRUCTIONS:
Fabric Duckbill Face Mask.mp4AUTOCLAVE WRAP / STERILIZATION WRAP / SURGICAL WRAP
AUTOCLAVE WRAP / STERILIZATION WRAP / SURGICAL WRAP
Hospitals and clinics use fabric-like synthetic materials (known as surgical fabric, surgical wrap, autoclave wrap, or sterilization wrap) to cover surgical instruments during sterilization.
This type of fabric is now being sewn into masks because it can block particles as small as some viruses.
These surgical materials are thicker than cotton fabric and are relatively stiff.
Sewn duckbill mask using surgical wrap
Sewn duckbill mask using surgical wrap
VIEW INSTRUCTIONS and PATTERN:
VIEW INSTRUCTIONS and PATTERN:
"No sew" duckbill mask using surgical wrap
"No sew" duckbill mask using surgical wrap
VIEW INSTRUCTIONS and PATTERN:
VIEW INSTRUCTIONS and PATTERN:
VIEW FILES for 3D-printed components:
VIEW FILES for 3D-printed components:
WHY the DUCKBILL SHAPE?
WHY the DUCKBILL SHAPE?
Many of the widely used homemade fabric mask patterns are based on:
1) pleated or “accordion-fold” style masks
2) styles with two smooth panels that join at the front
However, these designs have flaws with respect to FIT and BREATHABILITY
However, these designs have flaws with respect to FIT and BREATHABILITY
FAILURE TO SEAL ON ALL EDGES
FAILURE TO SEAL ON ALL EDGES
Most fabric masks are NOT designed to make a complete seal around the face and mouth. Only respirators are designed to create an impenetrable barrier.
Pleated masks typically have gaps on the sides and under the chin. Masks made from smooth panels may eliminate gaps to a greater extent, but the fabric rests close to your mouth, which doesn’t allow for much air flow (see below).
LOW AIRFLOW & MOISTURE BUILD UP
LOW AIRFLOW & MOISTURE BUILD UP
When fabric is positioned close against your nose and mouth, there's little chance for the air and moisture in each breath to find it’s way out of the mask.
As a result, people feel the steamy discomfort of hot breath ... and moisture accumulation in the fabric can impede air flow even further.
On top of all that, people are adding filter materials to their fabric masks, creating an even bigger barrier for air exchange and water vapor release.
The DUCKBILL MASK provides a tight fit and good air flow
The DUCKBILL MASK provides a tight fit and good air flow
The DUCKBILL MASK:
The DUCKBILL MASK:
CREATES A BETTER BARRIER by providing a secure fit like a respirator
CREATES A BETTER BARRIER by providing a secure fit like a respirator
good seal under the chin, as the chin straps pull the mask UP against your skin
tight fit on different face shapes
for optimal fit, gaps around the nose can be eliminated using adhesive weather stripping
INCREASES COMFORT by maximizing airflow and managing respiratory moisture
INCREASES COMFORT by maximizing airflow and managing respiratory moisture
large interior surface area facilitates gas exchange and moisture dissipation
air flows throughout the mask interior instead of being blocked by fabric close to the mouth
comfortable breathing experience for hours on end -- with fabric alone or with a filter insert
Page updated
Google Sites
Report abuse