Envirotab™ 4 Gram Chlorine Dioxide Tablets – 28ct Pouch for Odor & Mold Control

The smell that won't quit has met its match

You know the one. The musty basement, the car that smells like an old gym bag, the room that never quite aired out after the water damage. You've tried the sprays and the plug-ins. They cover it up for a day, and then it's back.

EnviroTab is what I reach for when masking isn't an option. Each tablet is a premeasured dose of chlorine dioxide, the same chemistry used in drinking water treatment and hospitals for decades. Drop it in water and you've got a professional-grade solution that goes after odor at the source instead of perfuming over it.

What it does

Chlorine dioxide is a selective oxidizer. In plain terms, it breaks down the organic material causing the smell rather than covering it. It's bleach-free, fragrance-free, VOC-free, and leaves no residue. The tablets come individually sealed in foil, so every dose is fresh and consistent. No measuring, no guessing.

Used according to the label, EnviroTab solutions:

• Deodorize hard surfaces, equipment, vehicles, HVAC areas, crawl spaces, and enclosed air spaces
• Inhibit odor-causing bacteria on treated surfaces (bacteriostatic action)
• Inhibit and control mold and mildew growth on applicable surfaces (fungistatic action)
• Control slime buildup in water storage tanks and lines (slimicidal action)

An honest note, because I'd rather tell you straight: the label claims here are bacteriostatic and fungistatic (EPA Reg. No. 99407-1), which means inhibiting and controlling growth. That's different from a sanitizer or disinfectant claim, and it's not a blanket kills-all-mold promise. What it is, is a legit professional tool used on real jobs, and it works when you follow the label.

Mixing guide

Always fill your container with water first, then drop the tablet in. Never pour water directly onto a tablet. Let it dissolve completely, about one to two minutes. Avoid breathing the fumes while it dissolves.

• Cleaning and deodorizing: 1 tablet per gallon of water (about 100 ppm)
• Stronger jobs, mold and mildew control: 1 tablet per liter of water (about 400 ppm). Follow the label for contact time and finishing steps.
• Water storage tanks and lines: 1 tablet treats up to 20 gallons (about 3 to 5 ppm), per label directions

Using it

1. Fill a clean container with the right amount of water.
2. Add one EnviroTab 4g tablet.
3. Wait one to two minutes for it to dissolve fully.
4. Apply with a sprayer, mop, or cloth, using the contact time on the label for your application.
5. Rinse, extract, or let air-dry only as the label directs.

Safety

Wear the protective gear the label calls for: gloves, eye protection, and cover your clothing. Don't breathe the fumes while the tablet dissolves. Keep tablets in their foil until use, store everything out of reach of kids, and never use it in a way the label doesn't describe. The full EPA-approved label is the authority here, not this page.

Always test in an inconspicuous spot before treating a visible area.

Who it's for

Homeowners dealing with musty basements, pet odor, smoke smell, or mildew. Restoration pros, vehicle detailers, RV and boat owners, property managers, and anyone who'd rather treat the source than spray perfume on the symptom.

Why Odor Supply House carries it

Everything in this store has to earn its shelf space. I run a two-man odor removal business, and I only stock what I'd actually use on a job. Chlorine dioxide is one of the most versatile tools in my kit: one tablet, a gallon of water, and you've got a professional solution for odors that laugh at air fresheners. It's simple, it's honest chemistry, and it works. That's why it's here.

Frequently asked questions

Is EnviroTab a disinfectant?
No. The label claims are bacteriostatic and fungistatic, meaning the solution inhibits the growth of odor-causing bacteria and controls mold and mildew on treated surfaces. Those are different from sanitizer or disinfectant claims, so don't buy it expecting that.

How many tablets will I need?
One tablet makes a full gallon at cleaning and deodorizing strength, which covers a lot of ground. For tougher mold and mildew work you mix stronger, at one tablet per liter. The pouch holds 28 tablets, so most homeowners won't run out mid-job.

How long does the mixed solution last?
Mix it fresh and use it within a few hours. Like any activated chlorine dioxide solution, it loses strength as it sits, so don't mix up more than you'll use.

Will it bleach fabrics or leave a residue?
No. It's bleach-free, fragrance-free, VOC-free, and residue-free. That said, always test a hidden spot first and follow the label for your surface.

Can I use it in my car, RV, or boat?
Yes, deodorizing vehicles and enclosed spaces is one of its best uses. Follow the label directions, ventilate afterward, and don't occupy the space while you're treating it.

Is it safe around kids and pets?
Keep the tablets themselves stored out of reach of children, wear the protective gear the label requires while mixing and applying, and ventilate the treated area. Once it's applied according to the label and the area is aired out, you're good.

What's in the pouch: 28 individually foil-sealed 4g tablets in a resealable pouch.