Biocide Systems (biocidesystems.com) has a 3.3 out of 5 rating on OK.one, based on 101 user reviews collected here. It is listed under Home Services and its reputation is mixed. Opinions are polarized: 56% rate it 4 stars or higher while 32% give 1 star; The business has replied to 21% of negative reviews; 14 of them were added in the last 12 months. Last updated 2026-08-12.
Purchased the biocide auto shocker but it did not work on damp musty smell. Carefully following the instructions, in a clean dry interior, in the garage out of sunlight, for 24 hours the product did not appear to emit fumes or evidence of it like shown on the many videos I watched. The product may have been a dud. No response from company via phone calls and emails. They appear not willing to honor their satisfaction guarantee. Will not buy again.
After the Creek Fire in the Sierra National Forest several years ago, my cabin in Shaver Lake was permeated in smoke smell.
I tried everything to remove the odor but nothing worked.
I found your product by accident and decided to give it a try.
What an amazing difference it made.
Clean fresh air and no smoke odor.
I have since used it in my cars and homes as an addition to my normal spring cleaning.
Amazing product.
Thank You.
Mike Y.
Shaver Lake Ca.
We needed to get rid of smoking smell, it worked but left a strong chemical smell. Good news we sold the car but couldn’t get the chemical smell out. Put in a car air freshener.
Purchased 1 gallon of BioCide 100 and the electric fogger. We have treated a number of our showers and have had great success on preventing the formation of mold. Have been using for over two years and our only complaint has been the wrong phone number on ULV COLD FOGGER instruction manual, which we have corrected.
The product arrived quickly and was very easy to use which helped me treat the odor problem right away. After using it the space smelled much fresher and cleaner. Shipping took a little longer than expected but overall the experience was good and satisfying.
The product did literally nothing except leave a chlorine dioxide smell that's difficult to get rid of.
They market this product for cigarette smoke odor - it doesn't work at all.
I have many dog and cats plus as a pet sitter, many visitors. This product is animal safe and works wonderfully. It is my final touch after spring cleaning rooms. It's safe for my salt water fish tank too. Excellent product! Have used it before and always happy!
I ordered on the 8th of April and was showed I would get it in 5 days and now is the 15th of April and tracking is showing I won't get it until the 21st of April and by that time I won't need it.