Filters

The PAPRFC3 HEPA filter is a high efficiency particulate filter that should generally be changed when airflow becomes restricted or falls below the minimum airflow set by NIOSH –6 CFM. If this occurs, EVA will sound an audible low flow alarm. Please reference HEPA filter article on the healthcare page: https://www.bullard.com/insights/hepa-filters/

The PAPRFC3 HEPA filter is a particulate filter only and filters 99.97% of 0.3-micron particulates, including bacteria and viruses. To put this into perspective, an N95 mask filters at least 95% of 0.3-micron particulates. Most viruses and bacteria are 0.3-micron.

These have a 10-year shelf life if unopened and stored in proper conditions.

No. EVA features active airflow technology that automatically speeds up the blower unit motor, as airflow diminishes, in order to maintain the airflow setting selected by the user. This technology works exactly like the cruise control in your automobile.

A HEPA filter is needed to prevent exposure to communicable diseases. The Bullard PAPRFC3 HEPA filter is designed for the EVA and EVAHL. This filter should generally be changed when airflow becomes restricted or falls below the minimum airflow set by NIOSH –6 CFM. If this occurs, EVA will sound an audible low flow alarm.

The installed filter does not need to be removed when the PAPR is not in use. The unit can be disinfected with the filter in place. The PAPRFC3 HEPA filter is a high efficiency particulate filter that should generally be changed when airflow becomes restricted or falls below the minimum airflow set by NIOSH –6 CFM. If this occurs, EVA will sound an audible low flow alarm.