What is the specification of nonwoven masks? Masks are generally made of 15g, 20g, 25g and 30g PP non-woven fabrics, the conventional grammage is 15g+20g+25g, there are also 20g+20g+25g, in general, flat masks are divided into: cotton masks , Non-woven masks, polymer masks, activated carbon powder filter masks, activated carbon fiber felt masks. Size specifications: 18 × 9 (adults), 15 × 9 (children).
Non-woven masks specifications:
a) The size of the central part of the rectangular mask after its unfolding: the length is not less than 17cm and the width is not less than 17cm;
b) Close-fitting arched masks shall have a diameter of not less than 14cm and a longitudinal diameter of not less than 14cm.
c) The nose clip is made of bendable plastic material and its length is not less than 8.5cm.
d) Three-layer nonwoven mask size 17.5mmx19.5mm
The Emergency Sensor Light is specially designed for ceiling Mounted emergency lighting and with Microwave Sensor. from 12inch 18W to 18inch 36W. Dimmable lighting, Waterproof and Dustproof avialable. Widely using for Office and Household. Automatically light at once when buildings main power outage. It is more than 3 hours emergency time. When Main power is on, it use as an normal sensor lighting
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Foshan Nai An Lighting Electric Co.,ltd , https://www.twinspotlights.com