This premium KYNG Filter is a 40mm sealed standard filter that can directly help purify the users oxygen by productively circulating clean air through the filter.
KYNG filters help the airflow when breathing in exposed air; it also maintains positive pressure.
This filter is best fitted with a KYNG mask but can be used for any mask that fits 40mm.
The replacement filter can also be connected with a respirator mask to hose to create a more secure purification system.