Vest-Type Oscillatory Airway Clearance System
HFCWO — High-Frequency Chest Wall Oscillation
Factory-direct supply for distributors, hospitals and medical equipment buyers. QIJIA integrates its own R&D and manufacturing, and offers OEM/ODM solutions with global distributor partnership.
In the words of the product manual: “Easily expel phlegm and breathe freely.” The host unit rapidly inflates and deflates the inflatable vest through twin hoses, oscillating the chest wall to help loosen mucus and move it toward the central airways.
- ISO 13485 / ISO 9001 Certified Manufacturer
- OEM / ODM Solutions
- Global Distributor Partnership
- Models PT-200QJ / PT-300QJ / PT-400QJ
- Standard YY/T 1685-2020 · NMPA · CE
- Use Hospital · Home
Product
In Use
QIJIA MEDICAL — Built for Distributors, Hospitals & Procurement Teams
If you distribute, purchase or specify medical equipment, you are buying direct from the manufacturer — with the R&D, production capacity, certifications and partnership support behind the product, not just the product itself.
Medical Equipment Manufacturer
Factory-direct supply from Jinan Qijia Medical Instrument Co., Ltd. — two production bases: Factory 1 in Jinan and Factory 2 in Hainan. No trading-company markup.
R&D and Manufacturing
Integrated R&D and production for rehabilitation and respiratory care equipment. Per the company catalog: 10+ patents and 20+ software copyrights.
OEM / ODM Solutions
OEM/ODM customization available for distributors and brand partners — discuss configuration, branding and market requirements directly with the factory.
Global Distributor Partnership
Recruiting regional agents and distributors worldwide. Built for long-term channel partnership with hospitals, clinics and medical equipment buyers in your market.
ISO 13485 / ISO 9001 Certified
ISO 13485 and ISO 9001 certified manufacturer, with CE marking and NMPA registration for this system — the documentation procurement teams ask for first.
3,000+ Hospitals · 20,000+ Families
Per the company catalog: 3,000+ hospital installations and 20,000+ home users — a proven installed base behind tenders, evaluations and repeat orders.
Product Photos
All photos are from the Airway Clearance System project library (manufacturer-supplied product photos and in-use scenes). Tap any photo to view it enlarged.
Working Principle Video
Principle animation (vertical 9:16, 20 seconds): how high-frequency chest wall oscillation loosens mucus inside the airways and moves it toward the larger airways, so it can be cleared by coughing.
- 1 · Mucus builds up in the airways — The animation opens on the lungs and trachea, with thick secretions collecting along the bronchial walls and narrowing the airways.
- 2 · The vest oscillates the chest wall — Worn over the chest and driven by the host unit through twin hoses, the inflatable vest rapidly squeezes and releases the chest wall at high frequency.
- 3 · Secretions loosen and move up — Inside the bronchial tree, the oscillation shakes mucus loose from the airway walls and moves it toward the larger, central airways.
- 4 · Cleared by coughing — Once the secretions reach the larger airways, they can be cleared by coughing or suction — the video closes on the host unit and vest that deliver the treatment.
How It Works
The explanation below is quoted directly from the product manual (Vest-Type Oscillatory Airway Clearance System, page 2).
High-Frequency Oscillation
The air pulse generator rapidly inflates and deflates the vest, gently squeezing and releasing the chest wall up to 20 times per second to produce full-chest high-frequency oscillation.
Deep Mucus Loosens and Rises
The oscillation creates a “mini-cough” effect that shakes mucus loose from the bronchial walls, thins thick secretions, and moves it toward the central airways.
Cleared by Coughing
Once mucus has moved from the small airways to the larger airways, it can be cleared by coughing or suction, completing an airway clearance session.
Key points from the manual: “The air pulse generator rapidly inflates/deflates the vest, gently squeezing and releasing the chest wall up to 20 times per second, producing a ‘mini-cough’ that shakes mucus loose from the bronchial walls and moves it toward the central airways, while thinning thick secretions so they are easier to clear.”
The manual also notes the full-chest high-frequency oscillation design, intended to ensure effective expectoration. This is also the standard working principle of the HFCWO (High-Frequency Chest Wall Oscillation) device category.
Product Features (the Manual's Seven Advantages)
From the “Seven advantages” on page 2 of the product manual.
8-Inch HD Color Screen
Visual operation with full touchscreen control (High definition).
Starts at 1 Hz
Low starting-frequency technology for comfort and high tolerance (Innovation).
40-Step Fine Adjustment
Adjustment with no stepped feel, for finer parameter control (Precision).
Ergonomic Vest
The vest is ergonomically designed for comfortable wear (Comfort).
Built-In Preset Modes
Multiple preset modes improve clinical efficiency and simplify operation (Convenient).
Automatic Voltage Compensation
Fully automatic over-voltage / under-voltage compensation system for safety and reliability (Security).
Patented Technology
Multiple related innovation and invention patents (Advanced). The company catalog states the company holds 10+ patents and 20+ software copyrights.
Specifications
The two specification sets come from different sources and are listed separately: on the left, the product manual's general description of the vest system; on the right, the official website's parameters for the home-use PT-200QJ.
Vest System · Manual Specifications
Source: Vest Airway Clearance System Manual (4 pages)
- Product name
- Vest oscillatory airway clearance system
- Governing standard
- YY/T 1685-2020
- Screen
- 8-inch HD color screen · Full touchscreen
- Starting frequency
- Starts at 1 Hz
- Chest wall compression rate
- Up to 20 times/second
- Adjustment steps
- 40-step fine adjustment
- Preset modes
- Adult / Elderly / Child / Custom
- Safety system
- Automatic over/under-voltage compensation
- System contents
- Host unit · Vest · Inflatable chest strap · Air hoses
PT-200QJ · Home-Use Model Parameters
Source: the model's page on jnqijia.com (reviewed and compiled 2026-11-10)
- Positioning
- Home-use model
- Screen
- 3.5-inch touchscreen
- Frequency range
- 1–22 Hz
- Pressure range
- 1–40 mmHg
- Modes
- Manual mode + 2 custom modes
- Unit weight
- 8 kg
Registration & Certifications
Sources: registration page of the company product catalog, page 4 of the product manual, and the ICR Verification of Conformity certificate
- Pneumatic HFCWO system
- NMPA Reg. No. 20232090077
- Vibration expectoration system
- NMPA Reg. No. 20232090079
- System / product certifications
- NMPA registration · CE · ISO 13485 · ISO 9001
- ICR Verification of Conformity
- ICR/VC/HM240211 (issued 2024-02-06, expires 2029-02-05)
The ICR certificate is a voluntary Verification of Conformity; as the certificate itself states, it does not by itself constitute full EU MDR conformity. Please confirm EU market-access requirements with the manufacturer.
Vest Sizes
From page 3 of the product manual. When selecting a size, refer to both chest circumference and recommended weight.
| Size | Chest | Recommended Weight |
|---|---|---|
| XXS | 45–58 cm | 5–10 kg |
| XSS | 59–69 cm | 11–20 kg |
| XS | 70–80 cm | 21–30 kg |
| S | 80–90 cm | 31–40 kg |
| M | 91–114 cm | 41–60 kg |
| L | 115–135 cm | 61–100 kg |
| Inflatable Chest Strap Size | Fits | Recommended Weight |
|---|---|---|
| L | 80–120 cm | 40–80 kg |
| XL | 121–170 cm | 60–100 kg |
Intended Patient Groups (as Stated in the Manual)
The three patient groups listed on page 3 of the product manual. Suitability must be assessed by a physician; this page does not constitute medical advice.
Retained Secretions with Impaired Ventilation
Atelectasis, pneumonia, acute respiratory failure (ARF), ARDS, mechanical ventilation, post-operative states, and similar conditions.
Weak Cough / Difficulty Expectorating
Weak cough or difficulty clearing secretions caused by cerebral palsy, motor neuron disease, quadriplegia, muscular dystrophy and other myopathies.
Impaired Airway Clearance
Emphysema, asthma, chronic bronchitis, bronchiectasis, cystic fibrosis, COPD, and similar conditions.
Model Lineup
The three main models, supplied factory-direct to distributors, hospitals and medical equipment buyers — OEM/ODM configurations available on request. A complete per-model parameter sheet has not been published separately for the PT-300QJ / PT-400QJ, so only confirmed information is listed here; please request the corresponding model documentation from the manufacturer for the rest.
PT-200QJ
Home Use3.5-inch touchscreen · 1–22 Hz · 1–40 mmHg · Manual + 2 custom modes · 8 kg (official website parameters).
PT-300QJ
See Host Front View in Product PhotosFrom the gallery's front view of the host unit: the screen shows Adult mode and “Pneumatic High-Frequency Oscillatory Airway Clearance System”, with twin round hose ports.
PT-400QJ
See Host Side View in Product PhotosFrom the gallery's side view of the host unit: the screen shows Manual mode, with cooling vents on the side of the housing.
Note: model suffixes are QJ on the official website and J in the Shopify store (e.g., PT-200QJ / PT-200J). For pricing and quotations, please contact the manufacturer.
Manufacturer & Partnership
QIJIA MEDICAL — medical equipment manufacturer with integrated R&D and manufacturing, OEM/ODM solutions and global distributor partnership. ISO 13485 / ISO 9001 certified. See For Distributors & Buyers at the top of this page.
Jinan Qijia Medical Instrument Co., Ltd.
A manufacturer integrating R&D and production of rehabilitation and respiratory care equipment, specializing in HFCWO airway clearance systems, transcranial magnetic stimulation (TMS), exercise rehabilitation and DVT prevention devices. The company catalog states: 3,000+ hospital installations and 20,000+ home users.
Factory 1 — Jinan
Jinan Qijia Medical Instrument Co., Ltd.
15th Floor, Building 1, Intelligent Industrial Park, Lugang Building, Jinan City, Shandong Province, China
Factory 2 — Hainan
Hainan Qjia Intelligent Technology Co., Ltd.
Room A3, Level 3, Building A, Haichuanggu High-tech Industrial Park, Haikou National High-tech Zone, Haikou City, Hainan Province, China
Contact & Partnership
- Phone: +86-15666409852
- WhatsApp: +8615666409852
- Website: www.jnqijia.com
- Online store: shop.jnqijia.com
- For distributors & hospital buyers: factory-direct pricing and quotations on request
- Global distributor partnership: recruiting regional agents worldwide
- OEM / ODM: customization available — discuss requirements with the manufacturer
- Quality system: ISO 13485 / ISO 9001 certified; CE · NMPA registered