Open up and stabilize the airways
PEP therapy recruits the airways by applying positive pressure during inspiration and expiration. This increases the resistance to exhalation, opening and stabilising the airways.
BiWaze® Clear is a respiratory device for airway clearance. It combines lung expansion, secretion mobilization, and inhalation therapy in a single system - for shorter, more comfortable treatment sessions, both at home and in the clinic.
Porta Medical is the exclusive distributor of ABM Respiratory Care’s BiWaze Clear and BiWaze Cough in Europe. For BiWaze enquiries, contact us directly – we answer them ourselves and connect you with a local dealer where needed.
Pressure, oscillation and nebulisation in one device instead of three separate treatments.
A complete session takes around ten minutes.
Gentle, individually adjustable airflows – without a vest, percussion or special positioning.
4.1 kg including battery, with a padded carrying bag.
Up to ten personal therapy profiles can be saved.
Touchscreen control, with a choice of automatic or manual mode.
Postoperative pulmonary complications (PPCs) can contribute to increased morbidity, mortality and healthcare costs in high-risk patients. A multicentre US study investigated whether oscillation and lung expansion (OLE) therapy after major open thoracic, upper abdominal or aortic surgery may be associated with fewer PPCs.1
−31%
22.9% 15.8%
−1.6 days
8.4 6.8 days
−64%
23.7 8.5 h
The PPC rate was lower in the OLE group than in the control group, and hospital stay and ventilation time were shorter (each statistically significant). No differences were seen in ICU length of stay, pneumonia or mortality. The results suggest that OLE therapy may potentially help reduce PPCs in selected high-risk patients.1
1 Huynh TT et al., J Am Coll Surg 2019. Study with MetaNeb (Hill-Rom), non-randomised, n = 419.
| Operating temperature | 5–35 °C |
|---|---|
| Relative humidity | 15–90% (non-condensing) |
| Dimensions | 27.5 × 23.5 × 9.0 cm |
| Weight | 4.1 kg (incl. battery) |
| Pressure range (PEP) | 0–30 cmH₂O |
| Oscillation pressure | 5–70 cmH₂O |
| Oscillation frequency | low / medium / high |
| Phase duration | 00:05–30:00 min |
| Modes | Auto / Manual |
| Battery | integrated, approx. 10 therapies per charge |
| Therapy profiles | up to 10 |
| Operation | Touchscreen |


BiWaze Clear is an airway clearance device combining three therapies: lung expansion (PEP), high-frequency oscillation (HFO) for secretion mobilisation and aerosol therapy (NEB) – in a single session of around ten minutes.
In chronic respiratory conditions, secretions can build up in the airways. Left untreated, they make breathing harder and raise the risk of infection. BiWaze Clear helps open the airways and loosen secretions.
Yes. At around 4.1 kg including battery and with a carrying case, BiWaze Clear is portable and suitable for both clinic and home care.
Mobilising secretions is one thing. Transporting them in the right direction is another. Why expiratory flow bias plays a decisive role, what research so far shows, and why a closer look at the technology of modern oscillation devices is worthwhile.
November 5, 2026 12 min read Expert-reviewed
Both devices are used with patients who have secretion problems, but they do fundamentally different things: one supports a missing cough, the other loosens and mobilises secretions. Mixing them up means picking the wrong device at the bedside.
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One circuit, two paths: the Dual Lumen Breathing Circuit for BiWaze Cough & BiWaze Clear separates inhaled and exhaled air within a single set. This article explains what that means for everyday use at the device.
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