Grayl UltraPress Purifier

Common questions

Is Grayl UltraPress Purifier healthy?

Grayl UltraPress Purifier scores 51/100 on Scout's independent analysis of ingredients, additives, and lab results — a below-average score in Scout's analysis. Grayl UltraPress Purifier scores 51/100 for water filtration performance.

How does Grayl UltraPress Purifier compare to other bottle filters?

Grayl UltraPress Purifier ranks #12 of 15 bottle filters in Scout's independent rankings. The current top score in the category is Epic Nalgene Outdoor OG Woodsman Water Filter Bottle at 94/100.

Which ingredients drive Grayl UltraPress Purifier's score?

In Scout's ingredient-by-ingredient analysis, Microplastics, Heavy Metals, Chlorine count in its favor. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Grayl UltraPress Purifier

51 Fair
$89.95 · 16.9 oz
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At a glance

Beneficial ingredients 9
Harmful ingredients 0
Category Bottle Filters
Summary

Grayl UltraPress Purifier scores 51/100 for water filtration performance. 9 contaminants effectively filtered.

Key ingredients 13

Microplastics
Good

The Grayl UltraPress Purifier effectively removes microplastics, achieving a reduction of over 60%. Microplastics are harmful pollutants that can affect aquatic life and human health.

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Heavy Metals
Good

The purifier is designed to reduce heavy metals significantly, likely over 60%. Heavy metals can cause serious health issues, including neurological damage.

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Chlorine
Good

Chlorine reduction is over 60%, making the water taste better and safer. Chlorine is commonly used in water treatment but can produce harmful byproducts.

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PFAS
Good

The filter effectively reduces PFAS by over 60%. PFAS are known as 'forever chemicals' and can lead to various health problems.

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VOCs
Good

VOCs are reduced by over 60% using the Grayl UltraPress. These chemicals can evaporate into the air and pose health risks.

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Pesticides
Good

The purifier reduces pesticides by over 60%. Pesticides can contaminate drinking water and have harmful effects on health.

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Microbiologicals
Good

The purifier removes 99.99% of viruses and 99.9999% of bacteria, which is crucial for preventing waterborne diseases.

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Cysts
Good

Protozoan cysts are reduced by 99.9%, which is vital for ensuring safe drinking water and preventing gastrointestinal illnesses.

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Sediment
Good

Sediment is effectively filtered out, achieving over 60% reduction. Sediment can harbor pathogens and affect water clarity.

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Chloramine
Neutral

Chloramine reduction is estimated to be between 20-60%. Chloramine is used as a disinfectant but can cause health issues and unpleasant tastes.

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Herbicides
Neutral

Herbicide reduction is estimated to be between 20-60%. Herbicides can affect water quality and ecosystem health.

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Pharmaceuticals
Neutral

Pharmaceuticals are likely reduced by 20-60%. These contaminants can disrupt aquatic ecosystems and human health.

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Nitrates
Neutral

Nitrate reduction is estimated to be between 20-60%. High nitrate levels can lead to health issues, especially in infants.

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