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Bacteria & Viruses.

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With HaloFilm™

HaloFilm™ | Chlorine Extender

HaloFilm is a disinfectant companion product that acts as a chlorine extender holding chlorine on a surface in a safe and effective manner. After being sprayed on, HaloFilm leaves behind a thin transparent film on plastics, glass, metals, rubber, leather, and even cloth. That film holds chlorine that comes from regular use of chlorinated sanitizers, disinfectants, bleaches, and cleaners. Normally, a chlorinated disinfectant will only kill bacteria and viruses for the 10-15 minutes that the disinfectant remains on the surface before being wiped off. HaloFilm does not wipe off a surface easily, and bonds to the chlorine providing continuous antimicrobial power.


Used in conjunction with a chlorinated product, HaloFilm can keep chlorine working on surfaces for days. On hard surfaces, it is possible to test for the presence of chlorine using the same tests people use to check for chlorine in a pool. Re-applying a chlorinated product to a HaloFilm protected surface will re-charge that surface with chlorine. HaloFilm probably needs to be re-applied weekly or monthly depending upon the disinfecting schedule.


  • Antimicrobial: Holds chlorine to kill a variety of pathogens

  • Long-acting: Single application of HaloFilm and chlorine can last a month

  • Compatibility: Creates film on hard and soft, porous and non-porous surfaces

  • Safe: Non-toxic and safe to the touch for children and pets

  • Environmentally friendly: Reduce the use of chlorine to accomplish the same level of sanitization

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Many disinfecting products kill 99% of germs on contact, but in about an hour the active ingredient has evaporated, along with its germ killing capacity, leaving surfaces unprotected.


HaloFilm works in conjunction with a chlorinated disinfectant.

First, you spray on HaloFilm to create a long-lasting, non-toxic, transparent film that binds both to your surface and to chlorine. Second, you continue to use a chlorinated disinfectant as you normally would. The chlorine will bind to the film holding chlorine on a surface longer -- safely and effectively.

Since HaloFilm lasts, you only need to use HaloFilm occasionally compared to more regular use of a disinfectant – a little HaloFilm goes a long way. 


The film that HaloFilm makes on a surface has two ingredients: one makes it stick to the surface, and the other makes chlorine stick to HaloFilm. The film sticks to surfaces better than it sticks to itself, so excess film will wipe away easily preventing buildup. But, the part that is sticking to the surface will remain well bonded against normal abrasion, e.g. wiping with a paper towel or a sponge, or touching with fingers (although you can remove it with a green scouring pad at any time).


We have tested a single application of HaloFilm and disinfectant and determined the chlorine level was effective after 30 days untouched. That was verified by an independent lab that showed HaloFilm after a single application deterred mold for 30 days. But, we are still working on determining just how long HaloFilm will last on different surfaces and under different conditions. Right now, we suggest you apply HaloFilm weekly or monthly and use disinfectant daily or weekly. That type of regimen is sure to keep your surfaces protected.

HaloFilm Fits Your Current Cleaning Habits

Step 1

Apply HaloFilm

Step 2

Apply Your Favorite Chlorinated Disinfectant

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Step 3

Re-apply Chlorinated Disinfectant Per Usual

Don’t worry if you don’t have a preferred chlorinated disinfectant. HaloFilm will charge a surface with chlorine using almost any disinfectant you can buy at a grocery story with active ingredients listed as Sodium Hypochlorite or Hypochlorous Acid. You can also take chlorine bleach and dilute it to make a disinfectant per Centers for Disease Control recommendations (

We suggest you spray HaloFilm to cover a surface every 7-8 times you use a chlorinated disinfectant, meaning a 4oz. bottle of HaloFilm is a companion to a 32 oz. bottle of disinfectant.

Germs are invisible, but HaloFilm provides protection you can see.

You can test for chlorine on your surface in the same way you test for chlorine in a pool or fish tank. Instead of dipping a chlorine test strips in a pool, simply  get them wet and rub them on your surface. If the tab turns blue, there is chlorine. This feature allows you to know that your surfaces have chlorine and therefore are fighting germs.

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Without HaloFilm

 Without HaloFilm, chlorine in cleaners and disinfectants, or really any active ingredient in disinfectants, only stays active killing germs for less than, sometimes only minutes if you wipe it off. That leaves long periods of time between disinfecting that surfaces can harbor and transmit pathogens. In addition, studies have shown that even in hospitals, cleaning and disinfecting every surface every time is hard to do perfectly, with some surfaces getting missed even through multiple disinfection applications.

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With HaloFilm

With HaloFilm, chlorine can stay active for days. There are two potential benefits to the continuous protection that HaloFilm provides: 1) You can have peace of mind that your surfaces are protected even if you missed some with each cleaning; 2) and, someday, you can reduce the amount of chlorine used and time spent cleaning. However, during this pandemic, we suggest you continue to use disinfectants liberally. 

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HaloFilm works with almost all surfaces: hard, soft, non-porous or porous. Most high touch surfaces are made of steel or plastic, and HaloFilm works well with those materials.

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For some of our testing, we prepared two surfaces with either disinfectant alone or HaloFilm and disinfectant. We then placed bacteria on this surfaces an hour after preparing them. Five days later, lots of bacteria could be seen on the disinfectant only surface through a microscope, but almost no bacteria was present on surfaces treated first with HaloFilm. Our results against bacteria have been confirmed by a third party lab showing that bacteria is still being killed 24 hours after application. 

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The film that HaloFilm leaves behind after drying is only about 200 nanometers thick. That means it is transparent and unnoticeable to the touch, and gets down into the nooks and crannies of the surface. Almost every surface at the microscopic level looks more like a mountain range than a glass sheet. HaloFilm concentrates chlorine in those valleys where pathogens can hide, keeping chlorine away from your finger passing over the high points. But, the concentrated chlorine makes HaloFilm effective. 

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As part of the testing we have performed to date, we use a machine that simulates normal abrasion from a sponge or rag wiping the surface, wet or dry. In our work, we found that after about sixty cycles, the chlorine level stabilizes and can then last for quite some time. These tests give us confidence that the film is robust against normal wiping and the chlorine remains attached, making HaloFilm robust and effective.


These organizations have already contributed to the success of HaloFilm:

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