Ultrafine Particle Filtration Integrity Testing for Vacuum Cleaners
Airmid Healthgroup provides independent testing to determine the filtration efficiency of vacuum cleaner systems for ultrafine particles and airborne pathogens — generating aerobiological data with a vastly greater degree of sensitivity and specificity than conventional particle counting techniques.
Scope
The emission of ultrafine particles from certain vacuum cleaners — even those with HEPA-based filtration — can result in consumer exposure to bacterial fragments and other noxious particulate materials. Most microorganisms are of sub-micron particulate size. When dust in a room is disturbed, these particles remain airborne for days at a time, and recirculation of contaminated air serves to augment exposure and hence potential infectivity.
Airmid Healthgroup is a uniquely integrated testing facility that combines molecular biology with state-of-the-art air sampling and particle counting in a highly sophisticated environmental test chamber. This allows us to follow nominated airborne infectious agents and other toxic biological particles — including ultrafine particles — while the vacuum cleaner is undergoing testing.
Products That Can Be Tested
- Household canister (tank-type) vacuum cleaners
- Stick vacuum cleaners
- Hand-held vacuum cleaners
- Upright vacuum cleaners
- Utility and commercial vacuum cleaner systems
Why This Testing Matters
Beyond Conventional Particle Counting
Aerobiological data generated using Airmid’s molecular approach has a vastly greater degree of sensitivity and specificity than data relying on conventional particle counting techniques alone.
Molecular Quantification
Molecular technology allows for precise quantification of residual contamination within the vacuum cleaner — assessing its ability to capture and contain infective biological particulate material rather than redistributing it into the air.
Uniquely Integrated Expertise
Airmid Healthgroup’s applied research in microbiology, molecular biology, and aerobiology means we are uniquely positioned to provide definitive filtration integrity testing for vacuum cleaner systems.
Request a Quote for Ultrafine Particle Filtration Integrity Testing
Contact Airmid Healthgroup to discuss your vacuum cleaner filtration testing requirements and receive a tailored quote.
Frequently Asked Questions
Why can ultrafine particles be a problem even with HEPA filtration?
HEPA filters are highly efficient at capturing particles above a certain size threshold, but ultrafine particles — particularly sub-micron biological fragments — can pass through poorly sealed filter housings, joints, or exhaust pathways even when the filter media itself is performing correctly. Filtration integrity testing assesses the complete vacuum cleaner system, not just the filter, identifying any leakage points that could expose users to biological particles.
What biological particles can be tracked during testing?
Airmid can follow a range of nominated airborne biological agents including bacteria, viruses, mould spores, allergens, and bacterial fragments — as well as inert ultrafine particles. The specific agents tested are selected based on the product’s intended claims and target market.
How is molecular technology better than conventional particle counting?
Conventional particle counters measure physical particle size and concentration but cannot distinguish between biological and non-biological particles, or identify specific organisms. Molecular techniques such as qPCR provide organism-specific detection and quantification — identifying exactly which biological agents are present, at what concentration, and where they are distributed within the vacuum cleaner system and exhaust air.
Can this testing support a health or allergy-friendly certification claim?
Yes. Data from Airmid’s ultrafine particle filtration integrity testing can support certification applications including the Asthma & Allergy Friendly® programme and similar schemes that require independent validated evidence of vacuum cleaner filtration performance. Airmid is a trusted partner of the AAFA certification programme.
Can robot vacuums and cordless models be tested as well?
Yes. In addition to traditional upright, canister, stick, and hand-held vacuum cleaners, Airmid can test robot vacuums and other automated cleaning systems for ultrafine particle filtration integrity. Contact our team to discuss the specific format and testing requirements for your product.
Related Vacuum Cleaner Testing Services
- Vacuum Cleaner Testing Overview
- Vacuum Microbial Pick Up Test
- Vacuum Allergen Pick Up
- Vacuum Cleaner Airborne Microbial Test
- ASTM F1977-04 (2017)
- IEC 62885-2:2021 — Surface Cleaning Appliances
- ASTM F2608-15 (2022)
- ASTM F608-11
- Airborne Allergen Test
- Allergen Filtration Integrity
- Bag Change — Bioaerosol Exposure
- Claims Verification Services
