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.
Dry, tight skin after every shower. Hair that gets duller, more brittle, and more prone to breakage every month. Colour that fades weeks faster than it should. Eczema flares that...
Dry, tight skin after every shower. Hair that gets duller, more brittle, and more prone to breakage every month. Colour that fades weeks faster than it should. Eczema flares that...
A landmark Duke University study tested 76 home water filters for PFAS removal. Pitcher filters did almost nothing. Whole-house carbon filters sometimes made things worse. And the technology most commonly...
A landmark Duke University study tested 76 home water filters for PFAS removal. Pitcher filters did almost nothing. Whole-house carbon filters sometimes made things worse. And the technology most commonly...
Sydney has detected 31 PFAS types in its tap water. Brisbane's primary treatment plant found PFOA at nearly 10 times the US EPA limit in raw source water. Melbourne's mountain...
Sydney has detected 31 PFAS types in its tap water. Brisbane's primary treatment plant found PFOA at nearly 10 times the US EPA limit in raw source water. Melbourne's mountain...
Most conversations about trihalomethanes (THMs) focus on drinking water. But a 10-minute hot shower creates a more direct exposure route — steam inhalation bypasses digestion entirely and delivers chloroform and...
Most conversations about trihalomethanes (THMs) focus on drinking water. But a 10-minute hot shower creates a more direct exposure route — steam inhalation bypasses digestion entirely and delivers chloroform and...
Australian tap water contains an average of 49.67 microplastic particles per litre — and a March 2026 NSW study found microplastics in every single coastal waterway tested across the state....
Australian tap water contains an average of 49.67 microplastic particles per litre — and a March 2026 NSW study found microplastics in every single coastal waterway tested across the state....
From 1 May 2026, new Australian rules require lead-free tapware in new builds — but lead-containing plumbing products remain legal to install until 2028 after a controversial regulatory extension. The...
From 1 May 2026, new Australian rules require lead-free tapware in new builds — but lead-containing plumbing products remain legal to install until 2028 after a controversial regulatory extension. The...
