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Allergy Guard - Small Screen Rolls


Product Description

BMT AllergyGuard NanoScreen™ delivers superior filtration performance. The only product that screens out such fine particle sizes. BMT Allergy Guard allows people to enjoy fresh air without worrying about pollen, pollutants, or other fine particles from entering their home or office.

With our patented NanoScreen™ technology, BMT Allergy Guard creates a force-field around the home or work environment that allows the air to flow but blocks out the allergens and fine dust and pollution particles.

Make Allergy Guard a Part of Your Health & Wellness Plan

Our purpose is to promote health and wellness across North America and our goal is to empower millions of people that suffer from allergies to turn off the air conditioners and open their windows and doors and let the fresh air flow into their homes and work environments.


1 mm = 1000 microns (μm) (also called micrometers)
1 micron (μm) = 1000 nanometers
1 nanometer (nm) = 1000 times smaller than a micron
1 nanometer (nm) = 1 billionth of a meter

Allergy Guard nanofiber filtration capacity covers the full virus particle size spectrum and blocks virus matter far smaller than Coronavirus.

Allergy Guard can therefore be used as an effective emergency substitute filtration media in any product that is designed to block Coronavirus to keep people protected.

These applications can include the critical inner filtration layer for protective masks, work space cubicle hanging screen curtains, window screen fabric or any other protective application designed to block coronavirus.




AllergyGuard Mesh = Presently distributed in the USA in a Health & Wellness allergen blocking window screen material.

But the primary application for the nanofiber technology is medical masks.  We have simply applied the same nanofiber technology to our screen fabric application.

Allergy Guard Blocks very small particle size range of 0.02 microns (μm) = 20 nm and above.

Coronavirus Size Range = 0.1 – 0.3 microns  


 Allergy Guard

  • Advanced Nano Screen
  • Construction = High strength PVC-coated synthetic fiber construction with integrated Allergy Guard nano-fiber filtration media


  • 1 meter = 100 centimeters
  • 1 centimeter = 10 millimeters
  • 1 millimeter = 1000 microns (μm) (also called micrometers but we will use microns)
  • 1 micron (μm) = 1000 nanometers
  • Micron (μm) = Micrometer = 1000 times smaller than a millimeter
  • 1000 microns (μm) = 1 millimeter (mm)
  • 1 micron (μm) = 1000 nanometers
  •  Nanometer (nm) = 1000 times smaller than a micron (μm)
  • 1 nm = 1 billionth of a meter


  •  General / macro virus size range spectrum = 20 - 300 nm
  • Factory R&D States // Coronavirus Size Range = 0.1 – 0.3 microns (μm)

Allergy Guard Mesh = Blocks very small particle size range of 0.02 microns (μm) = 20 nm and above

The Allergy Guard nanofiber filtration capacity covers the full virus particle size spectrum

  • - Independent cross-check / Britannica / stated Coronavirus size = 120 nm = 0.12 microns (μm)
  • - Independent cross check / Stanford University / stated Coronavirus size = 80-160 nm = 0.08 – 0.16 microns (μm)
  • - Independent cross-check / Smart Air / Stated Coronavirus size = approx 125 nm = 0.125 microns average in a range of 0.06 - 0.14 microns (μm)
  • - Other Reference // BMT File / Electron microscope photo coronavirus size = 100 nm = 0.1 microns (μm) 
  • REFERENCE ONLY // COMMON MARKET N95 MASK / DEFINITION = A typical market N95 mask is a type of respirator which removes particles from the air that are breathed through it.
  • These respirators filter out at least 95% of very small (0.3 micron) particles.
  • N95 masks are capable of filtering out all types of particles, including bacteria and viruses.
  •  Allergy Guard can filter out much finer particle sizes as noted above.


Customer Experience:

"OMG! The pollen has started in earnest and guess what?! These screens are keeping the house pollen free! I cannot believe it. I am going to do the master bedroom screens tomorrow as it is a dust bowl. Yech! 

I will take some pictures to show the difference. It is amazing. I am so pleased. Well, I am going to post on local forums and FB pages about this. . Can I put your name and 800# out there?"

Cheers  Angela



sneeze.jpg              cta2-want-to-see-it-before-you-buy-.png 

Metro Screenworks Inc. is introducing the latest in window screening material technology. We can manufacture window screens with Allergy Guard or provide rolls of Allergy Guard for you to install in your existing screens or any opening as needed. This multi-purpose window air filter screen is a must to protect your family from the pollution that is a growing problem in today's world.

 Allergy Guard is a high-performance, nano-fiber window screen mesh. This window screen filter is an advanced home and institutional nano-fiber screen mesh for window screens engineered to block most airborne allergens and ultra-fine dust:

  • Filters out fine Ultra fine dust PM 2.5 and fine dust PM 10. Also Yellow dusts and pollen, ultra-fine dust, and more!
  • Unlike conventional window screens, Allergy Guard blocks most bacteria, fly ash, pollen, hair, and agricultural & airborne dust. These window dust filter screens form a defensive barrier to prevent entry into the home or office.

  • They also have excellent filtering efficiency to block ultra-fine particulate matter & allergens down to 300 nanometers.

  • By comparison, the standard window fly screen only filters much larger particles the size of 2,000,000 nanometers.

  • These pollen screens have high porosity 80-85% = High permeability for excellent air circulation.

  • The high strength 3-layer construction provides superior durability.

  • These window filter screens also block 95% of rain and water.

  • They also provide excellent visibility while blocking more than 90% of UV light and 50% of infrared light.



Product Videos

Allergy Guard - Enhanced Pollen Screen For Window Filtration 02:10

Allergy Guard is a window filtration screen that can not only keep pollen out of your home but also bacteria, viruses — such as the coronavirus — fly ash, dirt, dust, and pollution. Learn more about Allergy Guard on our website: This window screen type is specially equipped to block coronavirus, allergens, and other particles because it makes use of the same nanofiber technology as is used in medical masks. This window screen material acts as a defense barrier against particles that cause allergies as well as many other materials that can make us sick, cause long-term health issues, and make our homes dirty. Protect yourself and your family with Allergy Guard screen that can filter out dirt and dust (PM 2.5, PM 10) and smaller more harmful particles. This screening material is available in bulk screen rolls and can be ordered in a ready-to-install window screen. Learn more about this amazing product and the coronavirus protection it offers, and buy online from Metro Screenworks! Learn more: Buy screen rolls: Buy complete window screens: #AllergyGuard #AirFiltrationWindowScreens #CoronavirusProtection #CoronavirusSafety

  • Allergy Guard ...
    Allergy Guard is a window filtration screen that can not only ...

Product Reviews

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  1. Really works but be prepared for reduced airflow 5 Star Review

    Posted by on Jun 29th 2020

    Really works, pretty amazing. I definitely noticed my allergies decrease.

    But be ready for reduced airflow. You’re not gonna get a nice breeze through the screen. It makes sense. If it’s gonna filter everything out airflow is gonna take a hit.

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