Is the certified Merv 16? If so what certification does it have?

Hello, good question. Yes it is Certified MERV 16. See below: EFFICIENCY RATING: MERV 16 per ASHRAE 52.2 ISO 16890 ePM10 94% ePM2.5 90% ePM1.0 79%

Seller states above that "we use multiple layers of non-woven polypropylene polycarbonate (nwpp) material...." is this product polypropylene or not?

Hello, this filter media is made using premium polycarbonate. All sourced here in the U.S. We only use polycarbonate, specifically nonwoven polyester polycarbonate (NWPP) because of its characteristics and structure making it ideal for face mask filters. Polypropylene is very air flow restrictive, making it difficult to breath, not a good choice for face mask filters, it should only be used if no polycarbonate material is available. Polycarbonate is much more superior, specifically nonwoven polyester polycarbonate (NWPP) making it highly efficient Merv16 that blocks the tiniest particles up to 0.3 microns with low air flow resistance, this makes it a perfect filter material for face mask for all day comfort and easy to breathe through. Thank you for your question. Be safe! Warmest regards, Biodefensor Filters

What is the difference between your Merv 13 v Merv 16 if both have the same minimal filter particle size of 0.3 microns?

Merv13 means the filter will trap less than 75% of air particles from 0.3 to 1.0 microns. While Merv16 means the filter will trap 95% or more of air particles from 0.3 to 1.0 microns

What is the filteration efficiency of this material in 0.3um-1um range?

Note that the manufacturer's own answer to this question (in which they claim 79% efficiency in the 0.3um-1um "E1" range) classifies this filter as MERV 14, not MERV 16.

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Biodefensor MERV 16 Air Filter Material Roll - Made in USA - DIY Filtration Projects

Biodefensor MERV 16 Air Filter Material Roll - Made in USA - DIY Filtration Projects

Product ID: 216298421

Details

Air Filter Construction
Pad/Roll
Brand
BIODEFENSOR
Compatible Devices
Air Purifier
Item Weight
8 ounces
MERV Rating
16
Manufacturer
Biodefensor

📏48x16 inches customizable size

🛡️MERV 16 high-efficiency filtration

🇺🇸Proudly made in the USA

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Description

🛡️ Elevate your air game with custom MERV 16 filtration!

MADE IN THE USA - Support local manufacturing with premium quality and reliability you can trust.
DIY CLEANROOM READY - Ideal for advanced projects like portable positive pressure clean rooms and HEPA pre-filters.
NEXT LEVEL FILTRATION - MERV 16 rating captures 95%+ of microscopic particles, beating standard filters.
TAILOR MADE AIR QUALITY - Cut-to-fit roll lets you create filters perfectly sized for your space and device.
SUSTAINABLE COST EFFECTIVE - Reusable polyester material reduces waste and saves money on frequent replacements.

The Biodefensor MERV 16 Air Filter Material Roll is a 48x16 inch polyester filtration fabric designed for DIY air filter projects. With a high-efficiency MERV 16 rating, it captures over 95% of fine particles, making it perfect as a pre-filter for vacuums, air purifiers, and even cleanroom setups. Proudly made in the USA, this roll lets professionals and enthusiasts customize their air quality solutions while saving on costly replacements.

Specifications

ASIN	B089MDPCV8
Air Filter Construction	Pad/Roll
Best Sellers Rank	#937,490 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #552 in Air Conditioner Replacement Filters
Brand Name	BIODEFENSOR
Common Applications	Appliances
Compatible Devices	Air Purifier
Customer Reviews	4.2 4.2 out of 5 stars (584)
Item Dimensions L x W x Thickness	48"L x 16"W x 0.04"Th
Item Weight	8 ounces
MERV Rating	16
Manufacturer	Biodefensor
Manufacturer Part Number	BIO-M16-4816
Material Type	Polyester
Model Number	BIO-M16-4816
Number of Items	1
Number of Packs	1
Product Grade	new
UPC	012436463168
Unit Count	1 Count

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£48.71

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Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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