Information
Information articles
Technical explainers that connect aerosol science, standards context, and practical testing decisions to ARE Labs study design.
Information4Groups17Pages
Route 01
Aerosol Science
Practical explainers for aerosol behavior, particle sizing, bioaerosol generation, and test scoping.
Aerosol Science BasicsAerosol science gives product, laboratory, and regulatory teams a shared language for choosing the right controlled aerosol test path.Bioaerosol Generation & SamplingBioaerosol work turns a biological target into a measured airborne challenge, then collects samples that can support the intended endpoint.Spray & Plume DynamicsSpray and plume dynamics explain how a device turns formulation energy into a measured cloud, pattern, droplet spectrum, and delivery event.Understanding Particle SizeParticle size helps explain where aerosol particles travel, how instruments count them, and which data belong in a test report.
Route 02
Regulatory Guidance
Regulatory and standards context for stability, validation, documentation, and method decisions.
AHAM AC-1 / AC-5 StandardsAHAM AC-1 and AHAM AC-5 are related air-cleaner standards, but they answer different evidence questions. AC-1 supports particulate CADR comparisons, while AC-5 addresses bioaerosol reduction in a chamber method.ASHRAE 241 Infection Risk MitigationASHRAE 241 helps building teams frame infectious-aerosol risk mitigation, while product teams still need method-specific evidence for bioaerosol efficacy, safety, and claim support.FDA Inhalation Device GuidanceFDA inhalation-device work starts by deciding which product frame applies: drug product, combination product, stand-alone device, accessory, or reusable delivery pathway.GLP vs. GMP: What's the Difference?GLP and GMP are not interchangeable: GLP protects the reliability of nonclinical study data, while GMP controls how regulated products are manufactured, tested, released, and documented.ICH Q1A(R2) Stability GuidelinesICH Q1A(R2) is the core stability-testing reference for many new drug substance and drug product registration packages.ISO 17025 Accreditation ExplainedISO/IEC 17025 accreditation is a laboratory-competence signal: it means an accreditation body has assessed a lab against defined requirements for valid testing or calibration work within a stated scope.
Route 03
Filtration
Filter ratings, gas-phase removal, room-air-cleaner claims, and performance terminology.
Gas-Phase / VOC FiltrationGas-phase and VOC filtration is not the same decision as particle filtration. The useful test path depends on the target gas, media chemistry, device geometry, airflow, humidity, and whether the claim is removal, capacity, CADR, or by-product control.HEPA vs. ULPA FiltersHEPA and ULPA are not interchangeable labels. For cleanrooms, semiconductor wafer manufacturing, and high-efficiency air-treatment devices, the useful question is what particle-size range, airflow, fixture, pressure drop, and acceptance endpoint the test actually measures.MERV Ratings ExplainedMERV is useful shorthand for HVAC filter performance, but it is not the whole test result. A defensible filtration plan still has to name the standard, particle-size range, airflow, pressure drop, sample configuration, and whether the claim needs work below the MERV particle band.
Antimicrobial Testing MethodsAntimicrobial testing is not one method. The right study depends on the product, sample path, organism, exposure condition, and claim the data must support.Biofilm ScienceBiofilm questions come up when a medical device stays wet, carries a working solution, has long internal channels, or must be cleaned and reused. The useful test is not just whether bacteria are present in the fluid today, but whether surfaces support attached growth that survives cleaning, disinfection, storage, or repeated use.Surface Disinfectant ClaimsSurface disinfectant testing starts with the exact claim the label or technical file needs to support. EPA-facing disinfectant, sanitizer, virucidal, residual, biofilm, and treated-article claims do not use the same evidence path.UV / UVGI DisinfectionUV and UVGI disinfection testing is a method-selection problem. The useful study depends on whether the device treats airborne bioaerosols, a single-pass duct stream, an irradiated surface, or a regulated medical-device claim.