This respirator can supply fresh air conveniently for the user,
compare to other breathing apparatus.
it has varies advantage.
1. Can be inserted into the power, so there is no limited for the
2. Have battery inside, for the case of there is no power or
inconvenient to connect power.The quantity of electric charge can
be last for at least 20 minutes for 2 people both using.
3. No need to backpack heavy cylinder, smart and lightweight.
4. Always used in narrow space, and also in chemical industry,oil,
electric power,metallurgy etc high concentration dust environment
and coal factory, underground construction.
The standard pipe length is 20 meter, and can be longer as your