Maximize viral and bacterial filtration for the Puritan Bennett™ 840 ventilator.

The Puritan Bennett D/X800 disposable expiratory filter and drain system is designed for the Puritan Bennett™ 840 ventilator. It reduces particles and bacteria in a patient’s exhaled gas and protects the ventilator’s exhalation and spirometry systems.


  • Comprehensive condensate drainage system includes one-piece filter and collector vial and optional drain bag
  • Optional drain bag allows for condensation removal without breaking the ventilator circuit
  • Viral and bacterial filtration efficiency of greater than 99.999%
  • Resistance to flow less than 2.5 cmH2O at 100 L/min when new
  • Minimum of 99.97% filtration efficiency of 0.3 microns nominal particle size at 100 L/min flow
  • Meets CDC requirement for n100 filtration equivalency

Ordering Information

Description Quantity Catalog Number
Puritan Bennett™ D/X800 Expiratory Filter (12/case) 4-076887-00
Puritan Bennett™ Drain Bag Single Patient Use (25/case) 4-048491-00
Puritan Bennett™ Drain Bag Clamp Reusable (5/case) 4-048492-00
Puritan Bennett™ Drain Bag Tubing Single Patient Use (10/case) 4-048493-00
Puritan Bennett™ Drain Port Cap Reusable (1/box) 4-074613-00


Viral/bacterial filtration efficiency Greater than 99.999%
Particle filtration efficiency Minimum of 99.97% of 0.3-μm
  nominal particle size at 100 L/min flow
Inlet connector 22-mm ISO connector
Resistance to flow Less than 2.5 cmH2O at 100 L/min when new
Flow leakage Less than 0.01 L/min at 140 cmH2O internal pressure
Size 11.7 cm diameter x 12.7 cm long (4.6 in. diameter x 5 in. long)
Internal volume Approximately 400 mL
Collector Vial  
Capacity Approximately 200 mL usable volume (to maximum fill line)
Length 17.8 cm (7 in.)
Internal diameter 0.48 cm (3/16 in.)
Drain Bag  
Capacity Approximately 1 L