SUMFOUND Single-Layer Double-Frame Mask

The SUMFOUND™ Single-Layer Double-Frame mask (SLDF mask) is the world's first reusable respirator with a single-layer filter. It consists of two flexible frames and a high-performance single-layer filter.

·  Single-layer filter with >99% filtration efficiency

·  HPI is 100 times higher than that of ordinary KN95 mask.

· Breathing resistance is 50%~80% lower than that of N95/KN95 mask.

·  Use cost is >80% lower than that of N95/KN95 mask.

·  Reusable after disinfection and replacing the filter

·  Plastic pollution is reduced by >70% comparing with surgical mask.

·  Convenient, lightweight design

·  The risk of virus shedding is significantly reduce.

Due to the low breathing resistance, single-layer masks (single-frame and double-frame) can also be worn while sleeping, making them very suitable for use in families, dormitories, and military camps to prevent the spread of COVID-19.

Accessories:

• Single-layer filter X 100

• Elastic band 5 meters

• Nose foam X 10

• Several adjustment buckles and hooks