Practical, research-backed guides on filtering your tap water, shower and bath, what's actually in your city's supply, and the science of hydrogen water. Written in Sydney by the HolyH₂O team.
PFAS — 'forever chemicals' — have been found in Sydney tap water, near airports, military bases, and industrial sites across Australia. The NHMRC tightened guideline values in June 2025. Here's...
PFAS — 'forever chemicals' — have been found in Sydney tap water, near airports, military bases, and industrial sites across Australia. The NHMRC tightened guideline values in June 2025. Here's...
Most Australians assume tap water is either perfectly fine or that any filter will do. Neither is quite right. This guide explains what tap water filters actually remove, what NSF...
Most Australians assume tap water is either perfectly fine or that any filter will do. Neither is quite right. This guide explains what tap water filters actually remove, what NSF...
Reverse osmosis is thorough, but for many Australian homes a matched water filter is more practical. Here is how to decide based on what you actually want to remove.
Reverse osmosis is thorough, but for many Australian homes a matched water filter is more practical. Here is how to decide based on what you actually want to remove.
A tap filter is the quickest way to better water in an Aussie kitchen. What separates a good one from a cheap one, which taps they fit, and when to...
A tap filter is the quickest way to better water in an Aussie kitchen. What separates a good one from a cheap one, which taps they fit, and when to...
Australian tap water is generally treated to meet drinking water standards, but that does not mean every tap delivers the same water or the same contaminant profile. What may be...
Australian tap water is generally treated to meet drinking water standards, but that does not mean every tap delivers the same water or the same contaminant profile. What may be...
Most filtered water bottle guides don't tell you the most important thing about Australian tap water: major cities use chloramine, not free chlorine — and standard activated carbon doesn't remove...
Most filtered water bottle guides don't tell you the most important thing about Australian tap water: major cities use chloramine, not free chlorine — and standard activated carbon doesn't remove...
