Stethoscope use is easier with the unique shape of our S-Series headcovers Innovative Quick Release Swivel (QRS) connects quickly and helps avoid kinks in the breathing tube See more with a wider field of vision, thanks to enhanced visor design Save time cleaning with our maintenance-free disposable hood Patients can see their provider’s entire face Two selectable flow rate options, 6.5 CFM and 7.2 CFM, offers more options and comfort to the user Easy-to-use and versatile PAPR system for particulate environments High efficiency particulate filter.Includes:S-133S HeadcoverBT-30 Length Adjusting Breathing Tube with BT-922 Breathing Tube CoverTR-302N+ PAPR UnitTR-327 Easy Clean BeltTR-332 High Capacity BatteryTR-341N Battery Charger KitTR-3712N HE FilterTR-3600 PrefilterTR-971 Airflow IndicatorRestricted States:AK,HI,PR