Filter Packs

* A kit to upgrade a City, Sportsta, or Nitesight mask to Techno mask performance
* Contains two Techno valves and one Techno gold filter
* Also useful as a spare sub-assembly, to allow a mask in daily use to have the filter swapped over occasionally to allow it to dry out, which will extend its life

* A set of two spare Powa valves for the Sportsta mask
* Designed to allow easy breathing when working hard

* A set of two spare Techno valves for Techno, City, and Nitesight masks

* Two spare filters for use in the Sportsta mask
* Contains a HepA-type filter. Also suitable for use in the City, Techno, and Nitesight masks
* The filter is designed to remain effective until a noticeable discolouration of the filter occurs

* Two spare filters for use in the Techno mask
* Combines a Dynamic Activated Charcoal Cloth filter and a HepA-type filter
* Also suitable for use in the City, Sportsta, and Nitesight masks
* The filter is designed to be fully effective for at least 1 month in normal regular daily use in the urban environment

* Two spare filters for use in the City and Nitesight masks
* Contains a Dynamic Activated Charcoal Cloth filter
* The filter is designed to remain effective for at least 1 month of normal daily use in the urban environment