Sundström pre-filter holder

The Sundström pre-filter holder is an essential accessory for securely attaching SR 221 pre-filters to gas, particle and combination filters. It protects the pre-filter from mechanical damage and helps to significantly extend the service life of the main filter.

System & Application

The pre-filter holder is mounted directly onto the filter in use and holds the pre-filter securely in place. In combination with the pre-filter, it prevents premature clogging of the main filter by coarse particles and thus increases the efficiency and service life of the entire respiratory protection system. :contentReference[oaicite:0]{index=0}

In addition, the pre-filter holder can also be used for fit tests in conjunction with the SR 322 test disc. This makes it a versatile accessory for both day-to-day use and safety checks. :contentReference[oaicite:1]{index=1}

It is used in a wide variety of sectors such as industry, trade or maintenance, where respiratory protection systems are used regularly and a high level of operational safety must be guaranteed.

Design

Pre-filter holder for securing SR 221 pre-filters
Compatible with gas, particle and combination filters
Protects the pre-filter from damage
Extends the service life of the main filter
Suitable for fit testing with test disc SR 322
Easy to fit and secure
Robust and durable design

Technical specifications

Material: PP
Colour: Black
Model: Pre-filter holder
Reference number: R01-0605
Operating temperature: -10 °C to +55 °C (< 90 % RH)
Storage temperature: -20 °C to +40 °C (< 90 % RH)
Shelf life: up to 10 years
Compatibility: SR 221 pre-filter and Sundström filter systems
Country of manufacture: Sweden