BestAir® 3BT Original Bacteriostatic Water Treatment, 32 fl oz for All Evaporative Type Humidifiers
BestAir® 3BT Original Bacteriostatic Water Treatment, 32 fl oz for All Evaporative Type Humidifiers
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BestAir® 3BT Original Bacteriostatic Water Treatment, 32 fl oz for All Evaporative Type Humidifiers

Key item features

  • Effective Treatment: Powerful formula aids in controlling bacterial and algae build-up while eliminating odors.
  • Prolongs Humidifier Life: Improves effectiveness and extends the life of the humidifier and wick.
  • Maximum Humidity: Facilitates maximum humidity into the air for a comfortable indoor environment.
  • Universal Use: Suitable for all evaporative type humidifiers.
  • Fresh Water: Keeps water smelling fresh and clean; add up to 2 teaspoons per gallon of water each time the humidifier is filled.
  • EPA Registered: Ensures compliance with environmental safety standards.
  • Indoor Air Quality: Dedicated to providing clean and comfortable indoor air by reducing dust, pet dander, and viruses.
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Current price is $17.21
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Arrives by Fri, Jun 26
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Sold and shipped by Supply the Home
4.3072848350317825 stars out of 5, based on 19822 seller reviews(4.3)
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$15.55
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Shipping, arrives by Fri, Jun 26 to Columbus, 43215
Sold and shipped by Action Packaged, Inc.
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Customer ratings & reviews

4.6 out of 5 stars
stars477 ratings162 reviews
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Reviews summary

Pros

  • : Effectively prevents bacteria growth in humidifier tanks and water.
  • : Effective during cold weather months.
  • : Helps keep water clean.
  • : Simple integration with humidifier or water systems.
  • : Has a clean scent that prevents unpleasant odors.
  • : Offers lower prices compared to others.
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Showing 1-3 of 162 reviews

Jul 16, 2025
Austin
Item details
Multipack quantity: 1
Sold and shipped byAction Packaged, Inc.
5 out of 5 stars review

Verified Purchase

Used it to clear out my 8sleep. I believe it works

I wasn't really sure what to expect for this. I saw on a reddit forum about purchasing this to mix with water in the 8sleep to clear out any of the bacteria or nastyness that ends up clogging the drain lines and breaking the machine. I used 3x the strength on the bottle and filled/flushed 3 tanks worth. It went from not working at all, to working like it did from when I first purchased it. I wish I would have been using this stuff from the start and would have avoided having to break down the machine entirely and working tirelessly with 8sleep's dreadful customer service.

Helpful?6D3Z3BO1P01V38470652
Jan 1, 2026
Jamie
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

After refurbishing a humidifier in expectation of having a tracheostomy patient in the house, I spent the extra money on Refresh C because a little extra immune support can't hurt, right? But when it came time for a refill, and it's winter so we're going through it FAST, I figured I'd try the regular bacteriostatic. I'm not having any problems with hard water deposits or murky water, the only thing working overtime seems to be the filter, but as long as i rinse it regularly, it doesnt turn into a rock. This product smells amazing. Not strong. A barely there type fragrance thatvis fresh and clean. I'd only noticed when thenbottle was open before, but i cleaned the whole ynit last night and you use more product the refilling the humidifier after maintenance. Walked out of my room this morning and the house smells awesome. Very light, barely there, but noticably better than when i went to sleep. Will continue to purchase, the scent makes me smile.

Helpful?6D3Z3BO1P01V38470652
Mar 15, 2026
Artur
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I use it for Humidifier device, so the water doesn't get contaminated with bacteria. It works, no white, stinky residues, water is clean and the air is safe.

Helpful?6D3Z3BO1P01V38470652