Able to function in both negative and positive pressure modes, the M53A1 can be used as an air purifying respirator (APR), powered-air purifying respirator (PAPR), self-contained breathing apparatus (SCBA), closed-circuit breathing apparatus …

The Avon M53A1 protective mask, an iteration of the SOF M53 mask, is a versatile system featuring three modes of respiration support (air-purifying respirator (APR), powered air-purifying respirator (PAPR), and self-contained breathing apparatus (SCBA)) to deliver clean air in CBRN and noxious environments.

The FM53 is globally acclaimed as the most technically advanced mask and offers both positive pressure SCBA, PAPR and negative pressure APR capability. All of these capabilities are available from one mask platform without the need to change components. Available in right, left or twin port filter configurations.

m53a1可以用作常规的负压或空气净化呼吸器（apr），电动空气净化呼吸器（papr），自给式呼吸器（scba），闭路呼吸器（ccba）以及scba和papr组合系统。

The M53A1 can function as a conventional negative pressure or air purifying respirator (APR), powered-air purifying respirator (PAPR), Self-Contained Breathing Apparatus (SCBA), closed-circuit breathing apparatus (CCBA) and combination SCBA and PAPR systems. M53A1 mask with CFP100 canister certified under 42CFR84 P100 standard.

The AVON FM53 / M53 is like two masks in one due to their unique and patented multi-valve system which can quickly change from positive pressure (PAPR) mode to negative pressure (APR) mode by the quick turn of a valve located on the front of the FM53 / M53 mask.

2019年7月22日 · TM 3-4240-552-13&P (Oct 18) includes the repair parts and special tools list for the following mask sizes: Choose the “ETM/IETM” app and search for the TM.

2020年2月17日 · 所以理论上来说，PAPR也能算是“正压呼吸器”当中的一种。 使用M53面具（APR）的FBI SWAT. 但是可千万不能认为面具上连出去根管子，别到腰里就是PAPR了. 这玩意它就明显不是，因为没有鼓风机. 这是正经PAPR. 因此使用带有送风装置的呼吸设备，可以减少使用者的使用负担。 但究其本质，其实就是普通的防毒面具，过滤还是靠滤罐/滤盒来完成的。 常见的民用PAPR：3M公司生产的Versaflo300，采用滤盒过滤. 最近香港就有（富）人上街带这个 …

The M53 will function as a conventional negative pressure mask as well as with a range of SCBA (Self Contained Breathing Apparatus) and PAPR (Powered Air Purifying Respirator). This is achieved without the need to remove or change any components.

2020年3月30日 · The M53 will function as a conventional negative pressure mask as well as with a range of SCBA (Self Contained Breathing Apparatus) and PAPR (Powered Air Purifying Respirator). This is achieved without the need to remove or change any components.