For large-scale indoor air treatment testing, partner with Element to meet consumer and industry demand for air treatments with antimicrobial public health claims. This commercial indoor air quality testing facility is among the first - and largest - designed for real world modeling of aerosolized disinfectant and sanitation products in indoor spaces.

It is now possible to evaluate the efficacy of aerosolized products intended to reduce or eliminate indoor airborne organisms in large indoor spaces such as arenas, hospitals, schools, transportation, and more. Unlike traditional microbiology test methods, Element’s 214 cubic meter biocontainment laboratory allows for simultaneous testing of a control and treated space. Various size configurations of, but not limited to, 107m3 and 214m3 can be accommodated, in addition to multiple air handling scenarios, including recirculation and the introduction of fresh air. 

Air treatment and related testing services for antimicrobial and antiviral products

A number of bacteria and viruses can be tested in Element’s large BSL-2 testing facility. Complete our request form to get in touch with a scientist to explore available organisms or connect with an expert via email. Common tests include, but are not limited to: 

  • Bioaerosol testing for air sanitization and air disinfection claims following EPA guidance
  • Bioaerosol testing for virucidal claims in air
  • Biological aerosol testing for removal of organisms in air
  • Bioaerosol testing against bacteria, phage, mammalian viruses, and fungi
  • Chemical analysis of air samples
  • Research and development (R&D) level testing
  • Good Laboratory Practices (GLP) compliant testing for regulatory submissions
  • Testing that incorporates air exchanges during testing
  • Custom testing against other air quality aerosols
  • Testing antimicrobial devices against bioaerosols (air filters, UVC devices, in-duct products, etc.)
  • Fogging and misting tests against airborne organisms
  • Fogging and misting tests against organisms on surfaces

Achieve public health air quality claims for indoor spaces

Evaluate product performance with purposefully designed R&D protocols before engaging in GLP-compliant testing. Prepare for the imminent release of EPA guidance for the efficacy of air treatments for public health claims, expected as early as the end of 2022.

The Element advantage

Element is fully invested in the success of our customers, including bringing forth new and innovative capabilities and solutions to help them to meet evolving market demands. Navigate complex regulatory requirements and an ever-evolving market successfully with the support of the scientific and regulatory experts at Element. Establish, maintain, and grow market share with air treatment products that have been validated by Element to provide public health improvements.

To learn more about our bioaerosol testing capabilities or to request a quote, fill out a short form or email our experts.

Virucidal fogging and misting device test methods

Element offers best-in-class virucidal efficacy testing of fogging and misting devices according to the following established methodology. Custom protocols can also be developed to meet your unique needs.

Virucidal Efficacy of a Disinfectant Applied to a Room via a Fogger or Misting Device - An aliquot of the test virus is inoculated onto the surface of a glass Petri dish (used as the test “carrier”) and the virus is dried. The inoculated carriers are placed at diverse locations within the sealed room and exposed to the test substance for a specified exposure time. Following exposure, the carriers are neutralized, and serial dilutions of the neutralized test substance are performed. The dilutions are then assayed for viral infectivity by an assay method specific for the test virus. Appropriate virus, test substance cytotoxicity, and neutralization controls are run concurrently.  

The EPA requires at least a 3 log reduction of the virus in order to claim efficacy. Connect with an expert today to explore a partnership with Element for virucidal efficacy testing of fogging and/or misting devices.

Microbiology fogging and misting device test methods

Element offers industry-leading microbiology testing of fogging and misting devices to established methods. Contact us today to explore the development of custom protocols to meet your needs.

Efficacy of a Disinfectant Applied to a Room via a Fogging, Misting or Vaporizing Device for Disinfection (bactericidal/fungicidal/tuberculocidal) - The purpose of this assay is to evaluate the efficacy of a room disinfection system applied by a fogging, misting or vaporizing device for disinfection on hard, non-porous surfaces. Inoculated glass carriers and appropriate chemical indicators or active ingredient detection probes are placed at diverse locations within the sealed room. The inoculated carriers and indicators/detection probes will be exposed to the test substance for a specified exposure time. After exposure, the carriers are transferred to vessels containing neutralizing subculture media and assayed for survivors. Appropriate culture purity, sterility, viability, initial population, carrier population, non-active treatment and neutralization confirmation controls are performed. 

Efficacy of a Sterilant Applied to a Room Via a Fogger or Misting Device - This assay determines the efficacy of a room bio-decontamination system on exposed, hard, non-porous surfaces, using a sterilant applied by a fogger or misting device in a sealed large volume enclosure. In this method, a series of glass or stainless steel surfaces inoculated with the test organism (commonly Geobacillus stearothermophilus, Clostridium difficile, Staphylococcus aureus or Pseudomonas aeruginosa) are placed at specific locations inside a customized testing room. The room is sealed, the fogging, misting or vaporizing product is allowed to treat the room and following treatment, the surfaces are removed and evaluated for survivors. Based on the desired claim and the requirements of the regulatory agency, the product must demonstrate kill on a predetermined number of carriers inoculated with test organisms applicable to the claim. The EPA typically requires the testing of 3 independent lots of test substance, one of which must have aged ≥ 60 days at the time of testing, to substantiate efficacy claims. Inoculated stainless steel carriers (biological indicators) and appropriate chemical indicators (CI), if applicable, are placed at diverse locations within the sealed room. The inoculated carriers and CIs will be exposed to the test substance for a specified exposure time. After exposure, the carriers are transferred to vessels containing neutralizing subculture media and assayed for survivors. The CIs, if used, will be visually examined and observations will be recorded. 

Efficacy of a Sanitizer Applied to a Room via a Fogging, Misting or Vaporizing Device for Non-Food Contact Sanitization - The purpose of this assay is to evaluate the efficacy of a room sanitization system applied by a fogging, misting or vaporizing device for non-food contact sanitization on hard, non-porous surfaces. Inoculated glass carriers and appropriate chemical indicators or active ingredient detection probes are placed at diverse locations within the sealed room. The inoculated carriers and indicators/detection probes will be exposed to the test substance for a specified exposure time. After exposure, the carriers are transferred to vessels containing neutralizing subculture media and assayed for survivors. Appropriate culture purity, sterility, initial population, carrier population, non-active treatment and neutralization confirmation controls are performed.  

Efficacy of a Sanitizer Applied to a Room via a Fogging, Misting or Vaporizing Device for Food Contact Sanitization - The purpose of this assay is to evaluate the efficacy of a room sanitization system applied by a fogging, misting or vaporizing device for food contact sanitization on hard, non-porous surfaces. For fogging or misting bio-decontamination devices which utilize a sanitizer, efficacy testing is performed to determine that all exposed, hard, non-porous surfaces within the enclosure are effectively sanitized. Inoculated glass carriers and appropriate chemical indicators or active ingredient detection probes are placed at diverse locations within the sealed room. The inoculated carriers and indicators/detection probes will be exposed to the test substance for a specified exposure time. After exposure, the carriers are transferred to vessels containing neutralizing subculture media and assayed for survivors. Appropriate culture purity, sterility, viability, initial population, carrier population, non-active treatment and neutralization confirmation controls are performed.  

Request a quote or speak with one of our antimicrobial experts