HEPA-VENT high-efficiency particulate arrestance (HEPA) air filters are used in commercial, academic, and scientific settings where exceptionally high airborne particle retention is necessary. -Dual lamination with a strong polyester monofilament strengthens the randomly organized glass microfibre media for greater capacity. -Meets high-efficiency particulate arrestance standard, holding 99.97% of all airborne particles at a distance of 0.3 m. Very high retention and bidirectional flow rate are produced by the depth of design. Whatman HEPA-VENT filters are ideal for applications requiring high flow rates, high retention, and dirt-holding capacity. Incubators or fermenters frequently employ them as in-line filters for air or gas filtration. Whatman HEPA-CAP capsule venting filters are additionally offered in addition to Whatman HEPA-VENT filters to accommodate higher filtration capacities.