Homemade oxygen breathing mask for 15 minutes

 After release sucessfully on Intertek gas detector, In march, we'll start to make the project as 

1， standalone gas detector which working on battery last 1.5 years、

2，WIFI CO detector， 

3，WIFI Smoke+ CO detector , 

4、The breath mask in the Fire as distributor in China， 

that would good protection for people, do your client strongly desire to have them?