Water filter device

This non-electric water filter connects to an untreated water source and uses a low-pressure filter to clean the water. The filter specifically relies on mesoporous activated carbon particles, which can be further refined to be basic and reduced-oxygen. Treated water is stored in a housing with an automatic shutoff and dispensed as needed.

Why it matters: Since 2003, material science advancements have likely made manufacturing specialized mesoporous activated carbon filters more cost-effective. This could enable broader, affordable deployment of non-electric water purification systems.

Status: ExpiredProtection ended and was never renewed
How hard to build: ModerateCustom activated carbon filter, float valve

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