Silica Gel Dust and Gas Proof Half Mask
Product Name: Silica gel dust and gas proof half mask
1. Usage and Characteristics
This product is a negative pressure dust and gas proof half mask,
suitable for industry, agriculture, research institutions,
transportation, energy resources and other dusty and poisonous
conditions. Operator can choose suitable filter and eyeshade
according to the working condition. The mask is made of silica gel
without poison , smell and stimulation to skin, light in weight,
comfortable in wearing, easy in using, remarkable in airtightness,
less breathing resistance, favorable sound transmitting, long using
life, high filtrating efficiency, low resistance, 0.
3m filtrating precision and 98% filtrating efficiency. It allows
people to work easily and pleasantly in conditions with exceed
concentrations and/or hazard compound. It is the best choice for
people work pleasantly, high efficiently, safety, and provides
protection from occupation diseases.
Before installation, Check whether the full mask is cracking,
tearing or dirty; whether the airtight parts are out of shape. The
material should be soft but not rigid, and the head band should be
resilient. Intake valve (in both sides of the mask) should be in
good condition without dust or cracking.
Please check between the air intakes and outlet whether there is a
white silica gel gasket circle in each air intakes and outlet.
Please make sure each gasket circle is installed properly before
use. This is of great importance.
Please choose appropriate filters according to the working
conditions. Please confirm again that all the silica gel gasket
circles are properly installed. Rotate anticlockwise to remove the
round cap on the top of the filter, then unclose the black tighten
gasket in the filter bottom, after that please aim the interface
with screw thread of the filer at the interface with screw thread
of the air intake, then rotate clockwise tighten.
Wearing the mask, firstly adjust the head belt then the belt in the
back to suitable place. And then fully cover the face with mask.
Then cover the breathing hose intake (with needle interface) with
palm, breath gently, then operator should feel the mask concave and
close to the face, while should not feel the air leaking in between
face and mask. Otherwise, check the headband again and tight
rotates the filter cap till sealed.
There are three choices of filters: 103HD, 103W, 103G.
This product is unsuitable to anoxic (i.e. oxygen content less than
18%) or explosive operating conditions, or IDLH concentration
(Immediately Dangerous to Life and Health) or groove and pots like
close containers. If the mask or valves are cracking, tearing or
dirty, please do not use. If feel uncomfortable, high resistance or
ill odors, operator should leave the working place and check the
mask or change a new filter.
After use, take out the filter, then use clean water (without any
organic solvent, or it will affect the effectively) to wash the
hood, then install the airtight gasket in the interface of the
hood, dry out in clean environment. After dried, please check the
airtightness of intake and outlet valves, and the completeness of
the gasket inside of screw interfaces. Put it away in a clean
After taking out the round filter, use soft dry cloth or paper to
wipe the outer of filter (not washable inside). Tight rotate the
cab clockwise after cleaned. Close the black airtight gasket plug,
preserved in clean condition for next use.