ATMOS C 451 Suction Unit: Performance, Configurations and Typical Users

ATMOS C 451 performance and technical data

Published data for the C 451 are a suction capacity of 45 l/min, a maximum vacuum of −91 kPa (−910 mbar) and a noise level of up to 48 dB(A). The unit weighs 6.7 kg, or 14.3 kg with the trolley, which is light enough for one person to carry and move between rooms.

The powerful diaphragm pump builds vacuum quickly and supports continuous operation. As with any diaphragm pump, there is no pump oil to manage, which simplifies maintenance. Vacuum is adjustable and shown on an easy-to-read gauge, so the setting can be verified before every use.

For specification purposes, remember that the 45 l/min figure describes free-air flow at the pump, and real flow at the patient end is reduced by tubing length, canister volume and the filter. Ask the supplier how the unit behaves with the longest tubing and the largest canister you plan to use.

Portable or trolley version, and canister options

The C 451 is available in a portable version or mounted on a trolley. A portable unit suits wards and emergency use where it travels with the patient or between bays; a trolley version is more comfortable for longer operating-room sessions where the unit stays beside the table.

Canisters can be attached with the Direct Docking System or used with standard rails and disposable systems. Canister sizes of 1500, 3000 or 5000 ml are available. A larger canister reduces changeovers during fluid-heavy cases, while a smaller one keeps the unit light for ward rounds.

• Portable or trolley-mounted version
• Direct Docking System, or standard rails with disposable systems
• Canisters of 1500, 3000 or 5000 ml
• Continuous operation with adjustable vacuum and clear gauge

Typical users: OR, ICU, wards, ER and maxillofacial surgery

The manufacturer lists operating rooms, surgical ICUs, normal wards, emergency rooms and maxillofacial surgery as target areas. In an operating room it can serve as a second aspirator beside a larger unit; on a ward it replaces or backs up a wall outlet; in the emergency room it offers strong suction without needing a piped vacuum point.

If your priority is airway readiness on a resuscitation trolley, a smaller battery unit may be more appropriate, as described in the battery emergency suction guide. For a general buyer's checklist, see our portable suction machine guide.

Another practical point is storage. Because the unit is light and mobile, it tends to be moved and left in corridors; assign it a fixed parking place near the area it serves, with a mains socket, so that it is always plugged in, checked and ready when needed.

Daily use, cleaning and maintenance

Before use, check that the filter is dry, tubing and connectors are intact and the canister is correctly seated. Test the vacuum by occluding the tubing and reading the gauge. After use, dispose of or reprocess the canister as your protocol requires and wipe the housing with an approved disinfectant.

Our articles on how to use a portable suction machine and cleaning and maintenance explain these routines in more detail. Add the unit to your preventive-maintenance schedule and keep spare filters and tubing on the ward.

Keep a short log card on the unit with the date of the last vacuum check and filter change. It takes seconds to fill in and gives auditors and biomedical engineers clear evidence that the device is controlled.

How to choose and what to ask your supplier

Compare the C 451 with alternatives on flow and vacuum together, not on vacuum alone: see suction pressure and flow settings. Check weight, noise, canister size, filters and local service. Details of the unit are on the ATMOS C 451 product page.

Confirm registration status of the device in the UAE and any facility requirements. Beckfinity can supply the unit with delivery and commissioning support; contact us to request a quote or consultation.