Self-Contained Breathing Apparatus vs Filtering Self-Rescuing Breathing Apparatus

Self-Contained Breathing Apparatus and Filtered Self-Rescuing Breathing Apparatus are two different types of respiratory protection equipment, and they differ significantly in design, function, and usage scenarios. The following is a detailed comparison of these two types of respirators:

I. Design Principle

Self-contained breathing apparatus: adopts self-contained open design, i.e. the respirator comes with its own compressed air source. During use, the pressure inside the mask is always greater than the ambient pressure, effectively preventing the entry of harmful gases or substances.

Filtered self-rescuing breathing apparatus: removes harmful gases such as carbon monoxide and smoke by adsorption, absorption, catalysis and direct filtration through the filtering device. When the external air enters the respirator, it is processed by the filtering device and produces cleaner air for people to breathe.

II. Functional characteristics

Self-contained breathing apparatus: strong protection performance, can be used in the smoke, gas, steam or lack of oxygen and other harsh environments. Equipped with a wide field of vision, bright, airtight good full face mask, as well as stable performance of the new air supply valve and pressure reducing valve. The pressure reducing valve device is equipped with a residual gas alarm to remind the user to evacuate the scene in time.

Filtered self-rescuing breathing apparatus: mainly used for self-rescue during fire escape, with limited protection time (e.g. 15min, 20min, 25min, 30min, etc.). It does not come with oxygen supply facilities and is only suitable for places where the oxygen concentration in the air is not less than 17%. Simple structure, lightweight and practical, low price, suitable for the general public.

III. The use of the scene

Self-contained breathing apparatus: widely used in firefighting, chemical industry, shipping, petroleum, smelting, warehouses, laboratories, mines and other departments. For firefighters or rescue personnel in a variety of harsh environments to safely and effectively carry out firefighting, rescue and relief and rescue work.

Filtered self-rescuing breathing apparatus: mainly equipped with hotels, entertainment, commercial complexes and other places for ordinary people to escape in case of fire.

Use and Maintenance

Self-contained breathing apparatus: Usually requires specially trained personnel to use. After use, professional maintenance is required, including cleaning the mask and checking the cylinder pressure.

Filtered self-rescuing breathing apparatus: easy to operate and can be used without special training. It is a one-time use fire escape equipment, and should be discarded and replaced with a new respirator after use.

Self-Contained Breathing Apparatus and Filtering Self-Rescuing Breathing Apparatus differ significantly in a number of ways. The choice of respirator should be based on the specific use scenario, protection needs and personnel training and other factors.