Field guide entry
Purification tablets
Found in 3 guides
Why you need it
Tablets weigh nothing, never clog and work as the backup to a filter — which matters because filters are exactly the thing that breaks when you need one.
What to look for
Chlorine dioxide or chlorine tablets with a clear dose per litre and a long shelf life. Check the expiry date whenever you check your smoke alarms.
Found in these guides
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