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Front angled view of H2O 4CPAP filter
  • Front angled view of H2O 4CPAP filter
  • Front angled view of H2O 4CPAP filter
H2O 4 CPAP Distilled Water Replacement Filter
Williamson Industries LLC | SKU:
H24-220

H2O 4 CPAP Distilled Water Replacement Filter

$9.99
Front angled view of H2O 4CPAP filter
  • Front angled view of H2O 4CPAP filter
In stock - Ships Next Business Day.

Product Specifications

Manufacturer Williamson Industries
Includes 1 replacement filter

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Overview

The H2O 4 CPAP replacement filter will help your H2O 4 CPAP Distilled Water Pitcher continue to excel at filtering out minerals, fluoride, calcium, and other contaminants found in ordinary tap water to provide clean ion distilled water for use as part of your CPAP routine

Guide and Resources

Returns Policy
CPAP Supplies Guide

Important Tips

What’s Included

The H2O 4 CPAP replacement filter will help your H2O 4 CPAP Distilled Water Pitcher continue to excel at filtering out minerals, fluoride, calcium, and other contaminants found in ordinary tap water to provide clean ion distilled water for use as part of your CPAP routine

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Front angled view of H2O 4CPAP filter

H2O 4 CPAP Distilled Water Replacement Filter

$9.99
$9.99

Overall rating: 5.0 / 5 from 3 reviews.

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"Perfect! Cheaper than going thru Amazon."

— Martin B. (5/5)

5 Stars

"I love this water filter and how easy it is to set up to use. I bought 2 extra filters with my purchase of the CPAP Pitcher to make the distilled water from the tap water. This way, I’m ready to replace the filter when it is time to do so."

— Megan K. (5/5)

5 Stars

"This is a great filter for distilled water, better than other popular water filters"

— Charles G. (5/5)

Q&A

Product Features
Replacement Parts
Reviews
FAQs

Replaces Original Filter

The H2O 4 CPAP replacement filter is meant to replace the disposable filter in the water chamber of the H2O 4 CPAP water pitcher, allowing you to create an endless supply of distilled water

FAQs

Why do CPAP machines require distilled water?

Distilled water prevents mineral buildup in the humidifier, reducing the risk of bacteria growth and extending the life of your CPAP equipment.

Can I use tap water in my CPAP machine?

Tap water contains minerals, bacteria, and impurities that can cause buildup and damage the humidifier over time. Always use distilled water when possible.

What happens if I don’t use distilled water?

Using non-distilled water can lead to mineral deposits, bacterial growth, and potential machine damage, reducing performance and hygiene.

Can I make my own distilled water for CPAP?

You can boil water and collect the steam, but it may not be as pure as store-bought distilled water. A home distiller is the best DIY option.

Is bottled water safe for CPAP use?

Not all bottled water is the same. Only distilled water is recommended. Spring, filtered, or purified water may still contain minerals.

Can I use CPAP without water?

Yes, but it may cause dryness and irritation. Some machines allow you to turn off the humidifier or use a heat moisture exchanger (HME) instead.

How often should I replace the CPAP humidifier water?

Daily—always empty the humidifier each morning, rinse it, and refill it with fresh distilled water before use.

What if I don’t have distilled water for my CPAP?

For a short time, filtered or bottled water is better than nothing, but clean your humidifier thoroughly afterward to avoid buildup.
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