What set us a part?

AllergyGuard Filter Technology 

  • 3-layer core filtration fabric 
  • See-through / talk through safety barrier screen curtain that blocks droplets carrying COVID-19
  • For use in a wide range of indoor and outdoor framed or hanging barrier screens to defend against the spread of airborne viruses across open workspaces, employees & customers
  • Grade 4 expedited medical facility construction
  • By comparison, standard window fly screen is limited to filtering only much larger particle sizes of approximately 2,000,000 nanometers.
  • High porosity 80-85% = High permeability for excellent air circulation and flow
  • High strength 3-layer construction for superior durability and puncture resistance
  • Blocks 95% of rain and water / Excellent visibility while blocking more than 90% of UV Light and 50% of Infrared Light
  • Can be used as an effective substitute filtration media in any product designed to reduce the passage of many harmful airborne droplets and help defend against risk of infection.
  • Emergency applications include the inner functional filtration layer of a reusable protective mask, workspace hanging safety curtains, window screen fabric and a range of other uses.
  • Laboratory-certified to meet or exceed ASHRAE 52.1 test standards

Coronavirus / COVID-19 is known to spread via touching or airborne droplets that are produced during sneezing or coughing by an infected individual. The critical element that must be blocked is the AIRBORNE DROPLET that carries a virus. 


BMT AllergyGuard filtration products are made with BMT NanoScreenTM technology engineered using advanced nanotechnology filtration design. And our BMT AllergyGuard Safety Barrier Screen delivers safety & protection to personnel in both interior workspace areas and outdoor field operations with the benefit of see-through / talk-through work team functionality so critical staff can get the job done while reducing risk of cross-infection. 

  • BMT VirusGuard blocks or restricts a wide range of airborne droplets carrying virus and bacteria as well as pollen, allergens, fly ash, agricultural & coal dust. 
  • Excellent filtration efficiency engineered to block microscopic airborne particles in a nanofiltration mesh range of 20-800 nanometers (0.02 – 0.8 microns). 
  • CDC defines the airborne droplets that carry most viruses including COVID-19 in a size range of 5,000-10,000 nanometers and most are unable to pass through BMT AllergyGuard filtration mesh range. 
  • CDC & public research now suggests that some micro virus nuclei airborne particles can be smaller  and can pass through most personal protective products, so social distancing remains critical. 
  • High strength 3-layer constructions deliver superior durability and maximum usable life while reducing risk of infection. 
  • Several functional filtration fabric options for production of a range of safety masks from disposables to durable reusable masks with up to a 40-day useable life with proper care. 
  • Suitable for sonic welding as well as heat molding and print sublimation up to 250 degrees F 
  • Hand-washable with mild soap & warm water / hand rinse / air dry / no machine washing or drying - do not squeeze or scrub to avoid damage to filtration media 
  • Laboratory-certified to meet or exceed ASHRAE 52.1 test standards