John’s Chem-Dry of Whatcom County is Your Trusted Partner in Removing Allergens and Bacteria from Your Home

In late 2014, we commissioned a leading independent air quality laboratory to conduct a study for us, with the goal of quantifying the healthfulness of our innovative Hot Carbonated Extraction (HCE) carpet and upholstery cleaning method. We tested not only allergen and bacteria removal in our carpet cleaning, but also our upholstery cleaning, our Pet Urine Removal Treatment (P.U.R.T.®), tile, stone & grout cleaning, and granite countertop renewal. This study used a cross-section of various consumer homes throughout both the US and the rest of the world. Both our Hot Carbonating Extraction as well as a pre-spray treatment were used.

We were pleased to see that our process yielded superior results through these studies, confirming that John’s Chem-Dry of Whatcom County is the best choice for healthy home cleaning services in Bellingham, WA and the surrounding areas. Here are the results from the final report:

Carpet & Upholstery

We remove an average of 98.1% of common household allergens from carpets and upholstery (combined). The common household allergens we tested were cat dander, dog dander and dust mite allergens. This broke down further into the respective service lines as follows:

  • We remove an average of 97.4% of allergens from carpets.
  • We remove an average of 99.1% of allergens from upholstery.
  • We remove an average of 89.0% of airborne bacteria in the home, significantly improving indoor air quality. This test incorporated the addition of a sanitizer to the cleaning process.
carpet and upholstery allergen study

Pet Urine Removal Treatment (P.U.R.T.®)

This test showed that our process yields significant results against the most common odor sources from cat and dog urine:

  • Our P.U.R.T.® treatment is 99.9% effective on average at eliminating pet urine odors.
  • Our P.U.R.T.® treatment removes an average of 99.2% of the bacteria from the pet urine stains in the carpets. The independent lab tested our HCE process along with a sanitizer (Milgo Plus) and P.U.R.T.® III against bacteria in pet urine stains in carpets.
pet urine removal study

Tile, Stone & Grout

The independent lab tested our Tile, Stone & Grout Cleaning Process along with a sanitizer (using Milgo Plus in some tests and Benefect Decon 30 in others) on tile surfaces.

  • Our Tile, Stone & Grout cleaning process along with a sanitizer removed an average of 98.6% of the bacteria from the tile surfaces.
tile and grout healthy home study

Granite Countertop Renewal

The independent lab tested our Granite Countertop Renewal Cleaning Process along with a sanitizer (using Milgo Plus in some tests and Benefect Decon 30 in others) on granite countertops.

  • Our Granite Countertop Renewal cleaning process along with a sanitizer removed an average of 98.4% of the bacteria from the granite countertop surfaces.
granite counter bacteria study

Carpets as well as area rugs and upholstered furniture act as giant filters, trapping allergens and bacteria and keeping them out of the air we breathe. But, just like an air filter, carpets become full over time and must be properly cleaned to remain most effective at trapping particulates as they settle from the air. This is especially important for the 1 in 5 Americans (roughly 60 million) living with allergies or asthma. You can ensure healthier indoor air in your home by keeping your carpets clean and in good condition through regular vacuuming and having your carpets, rugs, and upholstery professionally cleaned every 3 to 4 months to rid your home of common allergens and bacteria.


Tested and Proven Results


All of us, and particularly those who suffer from allergies and disorders like asthma, are greatly impacted by indoor air quality and the amount of allergens and bacteria trapped in our homes that can trigger an attack. Considering that and the fact that we spend an average of 90% of our time indoors, professional carpet cleaning serves an important function in the health of your home and your family. However, not all carpet cleaning services are alike. To find out how big an impact a Chem-Dry cleaning can have on home health, we thought it would be helpful to measure how effective our cleaning process is in eliminating unhealthy and unwanted elements from your home. So we commissioned a leading independent air quality laboratory to conduct a study using Chem-Dry’s Hot Carbonating Extraction (HCE) process in multiple homes. The lab found that Chem-Dry removes an average of 98.1% of common household allergens from the carpets and upholstery we clean. The common allergens we tested include cat and dog dander and dust mite allergen.

*Based on results from a study conducted by an independent laboratory using the Chem-Dry Hot Carbonating Extraction process. Allergens tested were dog and cat dander and dust mite allergen. Airborne bacteria results include use of sanitizer. Figures are an average across multiple homes.

Watch this video to see how we remove 98% of allergens and 89% of bacteria from your home with our Hot Carbonated Extraction cleaning process:

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(360) 734-3551


Whatcom County, Washington, including: Bellingham, Ferndale, Lynden, Blaine, Everson, Lummi Island, Point Roberts, and the surrounding areas.

Mon - Sat: 8:00 am - 8:00 pm

2915 Cowgill Ave
Bellingham, WA 98225
(360) 734-3551
(360) 366-3053