---
product_id: 430274
title: "Holmes Humidifier Bacteriostat, H1709PDQ-U"
price: "£2.82"
currency: GBP
in_stock: false
reviews_count: 8
url: https://www.desertcart.co.uk/products/430274-holmes-humidifier-bacteriostat-h1709pdq-u
store_origin: GB
region: United Kingdom
---

# Up to 4 months filter life extension Controls bacteria & algae growth Simplifies humidifier cleaning Holmes Humidifier Bacteriostat, H1709PDQ-U

**Price:** £2.82
**Availability:** ❌ Out of Stock

## Summary

> 💧 Keep your air pure and your filters fresh—effortless protection for your humidifier!

## Quick Answers

- **What is this?** Holmes Humidifier Bacteriostat, H1709PDQ-U
- **How much does it cost?** £2.82 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/430274-holmes-humidifier-bacteriostat-h1709pdq-u)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Versatile:** Perfect for all cool mist humidifiers, ensuring healthier air quality.
- • **Trusted by Users:** Thousands rave about longer filter life and odor-free operation.
- • **Effortless Maintenance:** Just add a capful per gallon—cleaning made simple and effective.
- • **Bacteria & Algae Defense:** Keep your humidifier’s water tank and filters fresh and germ-free.
- • **Extend Your Filter Lifespan:** Go weeks without changing wick filters—save time and money!

## Overview

Holmes Humidifier Bacteriostat H1709PDQ-U is a powerful 32-ounce solution designed to inhibit bacteria and algae growth in cool mist humidifiers. By adding a capful per gallon of water, it significantly extends wick filter life—up to 4 months without cleaning—while simplifying maintenance and promoting healthier indoor air. Ideal for professionals seeking hassle-free, effective humidifier care.

## Description

The investment in a cool mist humidifier in hot, arid climates can provide protection from static electricity while improving respiratory functions and soothing eczema and parched houseplants. Despite the numerous positive attributes, using a humidifier may also produce some harmful results. Without proper care, the humidifier becomes the breeding ground for assorted viruses, bacteria, algae, and mold. In other words, the soothing moisture released by humidifier may endanger household members more than heal them in the long run. Luckily, regular humidifier cleaning and filter replacement eliminates the spread of these unwanted elements. To stop bacteria growth in cool mist humidifiers, Holmes Products developed this Bacteriostat solution. The 32-ounce bottle contains various chlorides to effectively kill bacteria and algae. Suited portable and stationary cool mist humidifiers alike, the bacteriostat should not be used for treating warm mist humidifiers. As with all chemical cleaners, read all safety guidelines with care prior to use and keep away from flammables and children. The bottle measures 9.25 by 3.13 by 2.94 inches and weighs 1 pound upon shipping. Label Information Ingredients Dimethylbenzylammonium chlorides 2.25% Dimethylethylbenzylammonium chlorides 2.25% Inert ingredients 95.5% Warnings Keep this product out of the reach of children.

## Features

- Prolongs the life of wick filters
- Simplifies cleaning
- Controls growth of bacteria and algae in water tanks and wick filters
- Please read all label information upon delivery
- Keep away from children

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.4 out of 5 stars 334 Reviews |

## Images

![Holmes Humidifier Bacteriostat, H1709PDQ-U - Image 1](https://m.media-amazon.com/images/I/81dGevhkB2L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***E on January 25, 2014*



### ⭐⭐⭐⭐⭐ Review
*by J***7 on February 7, 2016*



### ⭐⭐⭐⭐ Review
*by N***S on November 27, 2011*



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**Shop now:** [https://www.desertcart.co.uk/products/430274-holmes-humidifier-bacteriostat-h1709pdq-u](https://www.desertcart.co.uk/products/430274-holmes-humidifier-bacteriostat-h1709pdq-u)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-15*